Cephalexin

Modify Date: 2024-01-02 20:00:13

Cephalexin structure	Common Name	Cephalexin
	CAS Number	15686-71-2	Molecular Weight	347.389
	Density	1.5±0.1 g/cm3	Boiling Point	727.4±60.0 °C at 760 mmHg
	Molecular Formula	C₁₆H₁₇N₃O₄S	Melting Point	196-198°C
	MSDS	Chinese USA	Flash Point	393.7±32.9 °C
	Symbol	GHS08	Signal Word	Danger

Use of Cephalexin

Cefalexin is a cephalosporin antibiotic.Target: AntibacterialCefalexin (INN, BAN) or cephalexin (USAN, AAN) is a first-generation cephalosporin antibiotic introduced in 1967 by Eli Lilly and Company. It is an orally administered agent with a similar antimicrobial spectrum to the intravenous agents cefalotin and cefazolin. It was first marketed as Keflex (Lilly), and is marketed under several other trade names. As of 2008, cefalexin was the most popular cephalosporin antibiotic in the United States, with more than 25 million prescriptions of its generic versions alone, for US$255 million in sales (though less popular than two other antibiotics, amoxicillin and azithromycin, each with 50 million prescriptions per year).Cefalexin is marketed by generic pharmaceutical manufacturers under a wide range of brand names, including: Apo-Cephalex, Biocef, Cefanox, Ceforal, Cephabos, Cephalexin, Cephorum, Ceporex, Cilex, Ialex, Ibilex, Kefexin, Keflet, Keflex, Rekosporin, Keforal, Keftab, Keftal, Lopilexin, Larixin, Novo-Lexin, Ospexin, Tenkorex, Zephalexin, Panixine Disperdose, Rancef, Sialexin, Sporidex and Ulexin. A version of Keflex 750 mg capsules is marketed for twice-daily dosage, to improve compliance. However, it is not a sustained release formulation, and since it is more expensive than the older strengths, some physicians prescribe three 250 mg capsules to be taken twice daily, as a less expensive alternative.

Name	cephalexin
Synonym	More Synonyms

Description	Cefalexin is a cephalosporin antibiotic.Target: AntibacterialCefalexin (INN, BAN) or cephalexin (USAN, AAN) is a first-generation cephalosporin antibiotic introduced in 1967 by Eli Lilly and Company. It is an orally administered agent with a similar antimicrobial spectrum to the intravenous agents cefalotin and cefazolin. It was first marketed as Keflex (Lilly), and is marketed under several other trade names. As of 2008, cefalexin was the most popular cephalosporin antibiotic in the United States, with more than 25 million prescriptions of its generic versions alone, for US$255 million in sales (though less popular than two other antibiotics, amoxicillin and azithromycin, each with 50 million prescriptions per year).Cefalexin is marketed by generic pharmaceutical manufacturers under a wide range of brand names, including: Apo-Cephalex, Biocef, Cefanox, Ceforal, Cephabos, Cephalexin, Cephorum, Ceporex, Cilex, Ialex, Ibilex, Kefexin, Keflet, Keflex, Rekosporin, Keforal, Keftab, Keftal, Lopilexin, Larixin, Novo-Lexin, Ospexin, Tenkorex, Zephalexin, Panixine Disperdose, Rancef, Sialexin, Sporidex and Ulexin. A version of Keflex 750 mg capsules is marketed for twice-daily dosage, to improve compliance. However, it is not a sustained release formulation, and since it is more expensive than the older strengths, some physicians prescribe three 250 mg capsules to be taken twice daily, as a less expensive alternative.
Related Catalog	Signaling Pathways >> Anti-infection >> Bacterial Research Areas >> Infection
References	[1]. Speight TM, et al. Cephalexin: a review of its antibacterial, pharmacological and therapeutic properties. Drugs. 1972;3(1):9-78. [2]. Tanrisever B, et al. Cefadroxil. A review of its antibacterial, pharmacokinetic and therapeutic properties in comparison with cephalexin and cephradine. Drugs. 1986;32 Suppl 3:1-16.

Description

Related Catalog

Signaling Pathways >> Anti-infection >> Bacterial

Research Areas >> Infection

References

[1]. Speight TM, et al. Cephalexin: a review of its antibacterial, pharmacological and therapeutic properties. Drugs. 1972;3(1):9-78.

[2]. Tanrisever B, et al. Cefadroxil. A review of its antibacterial, pharmacokinetic and therapeutic properties in comparison with cephalexin and cephradine. Drugs. 1986;32 Suppl 3:1-16.

Density	1.5±0.1 g/cm3
Boiling Point	727.4±60.0 °C at 760 mmHg
Melting Point	196-198°C
Molecular Formula	C₁₆H₁₇N₃O₄S
Molecular Weight	347.389
Flash Point	393.7±32.9 °C
Exact Mass	347.093964
PSA	138.03000
LogP	0.65
Vapour Pressure	0.0±2.5 mmHg at 25°C
Index of Refraction	1.700
Water Solubility	NH4OH 1 M: 50 mg/mL, clear, yellow

CHEMICAL IDENTIFICATION

RTECS NUMBER :: XI0350000

CHEMICAL NAME :: 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(2-amino-2-phenylacetamido)-3- methyl-8-oxo-, D-

CAS REGISTRY NUMBER :: 15686-71-2

LAST UPDATED :: 199612

DATA ITEMS CITED :: 35

MOLECULAR FORMULA :: C16-H17-N3-O4-S

MOLECULAR WEIGHT :: 347.42

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human

DOSE/DURATION :: 14 mg/kg/D

TOXIC EFFECTS :: Gastrointestinal - hypermotility, diarrhea Gastrointestinal - nausea or vomiting

REFERENCE :: AACHAX Antimicrobial Agents and Chemotherapy (1961-70). (Ann Arbor, MI) 1961-70. For publisher information, see AMACCQ. Volume(issue)/page/year: -,361,1968

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >20 gm/kg

TOXIC EFFECTS :: Behavioral - ataxia Skin and Appendages - hair Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki, Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year: 27(Suppl 7),765,1979

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 4 gm/kg

TOXIC EFFECTS :: Behavioral - excitement Behavioral - muscle weakness

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 3,390,1969

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 6100 mg/kg

TOXIC EFFECTS :: Behavioral - excitement Behavioral - muscle weakness Lungs, Thorax, or Respiration - respiratory depression

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 3,390,1969

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1495 mg/kg

TOXIC EFFECTS :: Behavioral - changes in motor activity (specific assay) Skin and Appendages - hair

REFERENCE :: NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki, Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year: 27(Suppl 7),765,1979

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 400 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - ptosis Kidney, Ureter, Bladder - urine volume increased Nutritional and Gross Metabolic - dehydration

REFERENCE :: AACHAX Antimicrobial Agents and Chemotherapy (1961-70). (Ann Arbor, MI) 1961-70. For publisher information, see AMACCQ. Volume(issue)/page/year: -,489,1968

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1150 mg/kg

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex) Lungs, Thorax, or Respiration - other changes Kidney, Ureter, Bladder - other changes

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 3,227,1969

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: >1 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 3,513,1969

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: >1 gm/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - food intake (animal) Behavioral - ataxia

REFERENCE :: AACHAX Antimicrobial Agents and Chemotherapy (1961-70). (Ann Arbor, MI) 1961-70. For publisher information, see AMACCQ. Volume(issue)/page/year: -,489,1968

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Primate - monkey

DOSE/DURATION :: >1 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: AACHAX Antimicrobial Agents and Chemotherapy (1961-70). (Ann Arbor, MI) 1961-70. For publisher information, see AMACCQ. Volume(issue)/page/year: -,489,1968

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - cat

DOSE/DURATION :: 250 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - food intake (animal) Gastrointestinal - nausea or vomiting

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 3,513,1969

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Mammal - cat

DOSE/DURATION :: 1 gm/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - altered sleep time (including change in righting reflex) Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 3,513,1969

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 2500 mg/kg

TOXIC EFFECTS :: Behavioral - food intake (animal) Gastrointestinal - hypermotility, diarrhea Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 3,513,1969

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: >4 gm/kg

TOXIC EFFECTS :: Gastrointestinal - hypermotility, diarrhea

REFERENCE :: AACHAX Antimicrobial Agents and Chemotherapy (1961-70). (Ann Arbor, MI) 1961-70. For publisher information, see AMACCQ. Volume(issue)/page/year: -,489,1968

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 5 gm/kg

TOXIC EFFECTS :: Gastrointestinal - hypermotility, diarrhea

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 3,513,1969

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 1 gm/kg

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex) Lungs, Thorax, or Respiration - cyanosis Nutritional and Gross Metabolic - body temperature decrease

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 3,513,1969 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 35 gm/kg/5W-I

TOXIC EFFECTS :: Kidney, Ureter, Bladder - other changes in urine composition Endocrine - changes in adrenal weight Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)

REFERENCE :: NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki, Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year: 34(Suppl 5),72,1986

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 140 gm/kg/35D-C

TOXIC EFFECTS :: Kidney, Ureter, Bladder - urine volume increased Endocrine - changes in spleen weight Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 3,227,1969

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 182 gm/kg/26W-I

TOXIC EFFECTS :: Kidney, Ureter, Bladder - changes in bladder weight Endocrine - changes in adrenal weight Biochemical - Metabolism (Intermediary) - other proteins

REFERENCE :: NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki, Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year: 28(Suppl 3),116,1980

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 56 gm/kg/26D-I

TOXIC EFFECTS :: Kidney, Ureter, Bladder - urine volume increased Kidney, Ureter, Bladder - changes in bladder weight Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)

REFERENCE :: NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki, Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year: 28(Suppl 3),131,1980

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 182 gm/kg/13W-C

TOXIC EFFECTS :: Kidney, Ureter, Bladder - other changes in urine composition Blood - normocytic anemia Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)

REFERENCE :: NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki, Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year: 28(Suppl 3),103,1980

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 6 gm/kg/5D-I

TOXIC EFFECTS :: Kidney, Ureter, Bladder - other changes Kidney, Ureter, Bladder - changes in bladder weight Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 3,468,1969

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 72800 mg/kg/13W-C

TOXIC EFFECTS :: Behavioral - fluid intake Liver - changes in liver weight Blood - normocytic anemia

REFERENCE :: NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki, Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year: 28(Suppl 3),103,1980

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 31 gm/kg/31D-I

TOXIC EFFECTS :: Gastrointestinal - changes in structure or function of salivary glands Gastrointestinal - hypermotility, diarrhea Gastrointestinal - nausea or vomiting

REFERENCE :: NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki, Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year: 27(Suppl 7),812,1979

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 2100 mg/kg/7D-I

TOXIC EFFECTS :: Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis) Kidney, Ureter, Bladder - other changes in urine composition Nutritional and Gross Metabolic - changes in chlorine

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 29,3459,1995

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 10 gm/kg/5D-I

TOXIC EFFECTS :: Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis) Kidney, Ureter, Bladder - urine volume increased Kidney, Ureter, Bladder - changes in bladder weight

REFERENCE :: NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki, Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year: 28(Suppl 3),131,1980 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 22 gm/kg

SEX/DURATION :: female 7-17 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - other measures of fertility Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)

REFERENCE :: NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki, Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year: 27(Suppl 7),846,1979

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 52 gm/kg

SEX/DURATION :: female 17-22 day(s) after conception lactating female 20 day(s) post-birth

TOXIC EFFECTS :: Reproductive - Effects on Newborn - physical

REFERENCE :: NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki, Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year: 27(Suppl 7),865,1979

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 4 gm/kg

SEX/DURATION :: female 9-14 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - extra-embryonic structures (e.g., placenta, umbilical cord) Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Effects on Newborn - physical

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 3,249,1969

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 32 gm/kg

SEX/DURATION :: female 9-14 day(s) after conception

TOXIC EFFECTS :: Reproductive - Maternal Effects - ovaries, fallopian tubes Reproductive - Specific Developmental Abnormalities - musculoskeletal system

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 3,249,1969

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 10 gm/kg

SEX/DURATION :: female 6-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - musculoskeletal system

REFERENCE :: NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki, Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year: 27(Suppl 7),846,1979

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 600 mg/kg

SEX/DURATION :: female 7-12 day(s) after conception

TOXIC EFFECTS :: Reproductive - Maternal Effects - uterus, cervix, vagina Reproductive - Specific Developmental Abnormalities - musculoskeletal system

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 3,249,1969

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 4800 mg/kg

SEX/DURATION :: female 7-12 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - extra-embryonic structures (e.g., placenta, umbilical cord) Reproductive - Effects on Newborn - physical

REFERENCE :: OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 3,249,1969 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83992 No. of Facilities: 58 (estimated) No. of Industries: 2 No. of Occupations: 3 No. of Employees: 902 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83992 No. of Facilities: 171 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 2977 (estimated) No. of Female Employees: 1729 (estimated)

Symbol	GHS08
Signal Word	Danger
Hazard Statements	H317-H334
Precautionary Statements	P261-P280-P342 + P311
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Faceshields;Gloves
Hazard Codes	Xn:Harmful
Risk Phrases	R42/43
Safety Phrases	S22-S36/37-S45
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	XI0350000
HS Code	3003201900

Precursor 7
CAS#:22252-43-3 7-Aminodeacetox... CAS#:72059-35-9 7-Aminodesaceto... CAS#:2835-06-5 2-Phenylglycine CAS#:38015-94-0 2,2,2-trichloro...
CAS#:38015-83-7 6β-((S)-2-bromo... CAS#:38015-90-6 2,2,2-trichloro... CAS#:875-74-1 D-2-Phenylglycine
DownStream 3
CAS#:22252-43-3 7-Aminodeacetox... CAS#:875-74-1 D-2-Phenylglycine CAS#:34876-35-2 3-Hydroxy-4-met...

HS Code	3003201900

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D-CEPHALEXIN

Sintolexyn

5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[(2R)-2-amino-2-phenylacetyl]amino]-3-methyl-8-oxo-, (6R,7R)-

MFCD04966776

Cephamasten

Cephalexin Hydrate

(6R,7R)-7-{[(2R)-2-Amino-2-phenylacetyl]amino}-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

EINECS 239-773-6

cefalexinum [INN_la]

Cephalexin

7-(D-a-Aminophenylacetamido)desacetoxycephalosporanic Acid

7-(D-2-Amino-2-phenylacetamido)-3-methyl-D3-cephem-4-carboxylic Acid

Cefibacter

Cefalexin (JP14)

Cefalexin (JP15)

Cefalexin

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Cephalexin
Price: ￥668.0/25g ￥188.0/5g
Purity: 98.0%
Stocking Period: Inquiry
Contact: Liu jia

DC Chemicals Limited
China
Product Name: Cephalexin
Price: $Inquiry/100mg $Inquiry/250mg $Inquiry/500mg
Purity: 98.0%
Stocking Period: 3 Day
Contact: Tony Cao

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Cephalexin
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang

Zhejiang Hangyu API Co., Ltd
China
Product Name: Cephalexin
Price: ￥Inquiry/1kg
Purity: 99.5%
Stocking Period: Inquiry
Contact: Vinnie

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Cephalexin
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson

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