Cloxacillin Sodium

Modify Date: 2025-08-23 11:59:23

Cloxacillin Sodium structure	Common Name	Cloxacillin Sodium
	CAS Number	642-78-4	Molecular Weight	475.878
	Density	N/A	Boiling Point	N/A
	Molecular Formula	C₁₉H₁₇ClN₃NaO₅S	Melting Point	170ºC
	MSDS	N/A	Flash Point	N/A

Use of Cloxacillin Sodium

Cloxacillin sodium exhibits antibiotic efficacy, with a MIC of 256 mg/L for Staphylococcus aureus 25923[1][2][3].

Name	cloxacillin sodium
Synonym	More Synonyms

Description	Cloxacillin sodium exhibits antibiotic efficacy, with a MIC of 256 mg/L for Staphylococcus aureus 25923[1][2][3].
Related Catalog	Research Areas >> Infection Research Areas >> Inflammation/Immunology Signaling Pathways >> Anti-infection >> Bacterial
In Vitro	Cloxacillin is an antibiotic useful for the study of a number of bacterial infections[1]. Cell Viability Assay[1] Cell Line: Strains M12 and M60. Concentration: 0.5 μg/mL. Incubation Time: 4-24 h. Result: Significantly reduced the bacterial numbers.
In Vivo	Cloxacillin sodium (50 mg/kg, Subcutaneously) results a significant antibiotic efficacy against S. aureus[3] Animal Model: Mice[2]. Dosage: 10 mg/kg (Pharmacological Analysis). Administration: Given subcutaneously. Result: Reached a maximal concentration in plasma of 8.4 μg/mL at 10 min and had a half-life of approximately 15 min. Animal Model: Mice injected with approximately 2 × 106 CFU of bacteria in 0.1 mL saline were aseptically injected into the right thigh muscle[3]. Dosage: 0–500 mg/kg. Administration: Subcutaneously in the nuchal region at 1 h after infection. Result: Resulted in a significant decrease in the number of viable S. aureus measured 18 h thereafter.
References	[1]. J C Anderson, et al. The Effect of Incorporation of Cloxacillin in Liposomes on Treatment of Experimental Staphylococcal Mastitis in Mice. J Vet Pharmacol Ther. 1986 Sep;9(3):303-9. [2]. W Calame, et al. Influence of Etoposide and Cyclophosphamide on the Efficacy of Cloxacillin and Erythromycin in an Experimental Staphylococcal Infection. Antimicrob Agents Chemother. 1989 Jun;33(6):980-2. [3]. Peter H Nibbering, et al. 99mTc-Labeled UBI 29-41 Peptide for Monitoring the Efficacy of Antibacterial Agents in Mice Infected With Staphylococcus Aureus. J Nucl Med. 2004 Feb;45(2):321-6.

Melting Point	170ºC
Molecular Formula	C₁₉H₁₇ClN₃NaO₅S
Molecular Weight	475.878
Exact Mass	475.058075
PSA	140.87000
LogP	1.54280
Storage condition	2-8°C
Stability	Stable. Incompatible with strong oxidizing agents. Refrigerate.
Water Solubility	H2O: 50 mg/mL, clear, colorless

CHEMICAL IDENTIFICATION

RTECS NUMBER :: XH8750000

CHEMICAL NAME :: 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 6-(3-(o-chlorophenyl)-5-methyl- 4-isoxazolecarboxamido)-3,3-dimethyl-7-oxo-, monosodium salt

CAS REGISTRY NUMBER :: 642-78-4

LAST UPDATED :: 199806

DATA ITEMS CITED :: 10

MOLECULAR FORMULA :: C19-H17-C1-N3-O5-S.Na

MOLECULAR WEIGHT :: 434.45

WISWESSER LINE NOTATION :: T45 ANV ESTJ F1 F1 GVQ CMV- DT5NOJ C1 ER BG &-NA-

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 5 gm/kg

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

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,232,1982

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1350 mg/kg

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

REFERENCE :: ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 15,322,1965

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

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 4200 mg/kg

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

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,232,1982

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1660 mg/kg

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

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,232,1982

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 5 gm/kg

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

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,232,1982

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1170 mg/kg

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

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,232,1982

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

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1500 mg/kg

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

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,232,1982

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 916 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - ataxia Lungs, Thorax, or Respiration - dyspnea

REFERENCE :: FATOAO Farmakologiya i Toksikologiya (Moscow). For English translation, see PHTXA6 and RPTOAN. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.2- 1939- Volume(issue)/page/year: 31,232,1968

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

ROUTE OF EXPOSURE :: Intramuscular

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1117 mg/kg

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

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: -,401,1995 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4495 No. of Facilities: 203 (estimated) No. of Industries: 2 No. of Occupations: 8 No. of Employees: 4409 (estimated) No. of Female Employees: 2017 (estimated)

Hazard Codes	Xn
Risk Phrases	36/37/38-42/43
Safety Phrases	S22
WGK Germany	2
RTECS	XH8920000
HS Code	2941109900

6-Aminopenicill...

CAS#:551-16-6

3-(2-chlorophen...

CAS#:25629-50-9

Cloxacillin Sodium

CAS#:642-78-4

Literature: WO2012/164355 A1, ; Page/Page column 9-10 ;

2-Chlorobenzaldehyde

CAS#:89-98-5

Cloxacillin Sodium

CAS#:642-78-4

Literature: WO2012/164355 A1, ;

3-(2-Chlorophen...

CAS#:23598-72-3

Cloxacillin Sodium

CAS#:642-78-4

Literature: WO2012/164355 A1, ;

Precursor 4
CAS#:551-16-6 6-Aminopenicill... CAS#:25629-50-9 3-(2-chlorophen... CAS#:89-98-5 2-Chlorobenzaldehyde CAS#:23598-72-3 3-(2-Chlorophen...
DownStream 0

HS Code	2941109900

Tegopen

4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[[3-(2-chlorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]-3,3-dimethyl-7-oxo-, sodium salt, (2S,5R,6R)-, hydrate (1:1:1)

Staphybiotic

Sodium cloxacillin

cloxacillin sodium hydrate

Ankerbin

Cloxapen

Austrastaph

(2S,5R,6R)-6-[[[3-(2-Chlorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid Sodium Salt Monohydrate

Prevencilina P

Cloxacillin sodium salt hydrate

Sodium cloxacillin monohydrate

cloxacillin sodium monohydrate

Orbenin

Sodium (2S,5R,6R)-6-({[3-(2-chlorophenyl)-5-methyl-1,2-oxazol-4-yl]carbonyl}amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate hydrate (1:1:1)

MFCD00150735

Prostaphilin A

Ekvacillin

[(2S,5R,6R)-6-({[3-(2-Chlorophenyl)-5-methyl-1,2-oxazol-4-yl]carbonyl}amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylato-κO]sodium hydrate (1:1)

sodium, [(2S,5R,6R)-6-[[[3-(2-chlorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylato-κO]-, hydrate (1:1)

Cloxacillin Sodium Salt

EINECS 211-390-9

Gelstaph

Monosodium (2S,5R,6R)-6-(3-(o-Chlorophenyl)-5-methyl-4-isoxazolecarboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate Monohydrate

Cloxacillin Sodium

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China
Product Name: Cloxacillin Sodium
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