Ornidazole

Modify Date: 2025-08-23 11:28:17

Ornidazole Structure
Ornidazole structure
 Common Name Ornidazole
CAS Number 16773-42-5 Molecular Weight 219.626
Density 1.5±0.1 g/cm3 Boiling Point 443.2±40.0 °C at 760 mmHg
Molecular Formula C7H10ClN3O3 Melting Point 85-90°C
MSDS Chinese USA Flash Point 221.9±27.3 °C
Symbol GHS07
GHS07		 Signal Word Warning

 Use of Ornidazole


Ornidazole(Ro 7-0207) is a 5-nitroimidazole derivative with antiprotozoal and antibacterial properties against anaerobic bacteria. Target: Antibacterial; AntiparasiticOrnidazole is a drug that cures some protozoan infections. Ornidazole 1 g/day is effective for the prevention of recurrence of Crohn's disease after ileocolonic resection [1]. Ornidazole is converted to reduction products that interact with DNA to cause destruction of helical DNA structure and strand leading to a protein synthesis inhibition and cell death in susceptible organisms [2].

 Names

Name ornidazole
Synonym More Synonyms

 Ornidazole Biological Activity

Description Ornidazole(Ro 7-0207) is a 5-nitroimidazole derivative with antiprotozoal and antibacterial properties against anaerobic bacteria. Target: Antibacterial; AntiparasiticOrnidazole is a drug that cures some protozoan infections. Ornidazole 1 g/day is effective for the prevention of recurrence of Crohn's disease after ileocolonic resection [1]. Ornidazole is converted to reduction products that interact with DNA to cause destruction of helical DNA structure and strand leading to a protein synthesis inhibition and cell death in susceptible organisms [2].
Related Catalog
References

[1]. Rutgeerts, P., et al., Ornidazole for prophylaxis of postoperative Crohn's disease recurrence: a randomized, double-blind, placebo-controlled trial. Gastroenterology, 2005. 128(4): p. 856-61.

[2]. Goldstein, E.J., V.L. Sutter, and S.M. Finegold, Comparative susceptibilities of anaerobic bacteria to metronidazole, ornidazole, and SC-28538. Antimicrob Agents Chemother, 1978. 14(4): p. 609-13.

 Chemical & Physical Properties

Density 1.5±0.1 g/cm3
Boiling Point 443.2±40.0 °C at 760 mmHg
Melting Point 85-90°C
Molecular Formula C7H10ClN3O3
Molecular Weight 219.626
Flash Point 221.9±27.3 °C
Exact Mass 219.041061
PSA 83.87000
LogP 0.69
Vapour Pressure 0.0±1.1 mmHg at 25°C
Index of Refraction 1.617
Storage condition -20°C Freezer

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
NI5460000
CHEMICAL NAME :
Imidazole-1-ethanol, alpha-(chloromethyl)-2-methyl-5-nitro-
CAS REGISTRY NUMBER :
16773-42-5
BEILSTEIN REFERENCE NO. :
0614299
LAST UPDATED :
199612
DATA ITEMS CITED :
15
MOLECULAR FORMULA :
C7-H10-Cl-N3-O3
MOLECULAR WEIGHT :
219.65
WISWESSER LINE NOTATION :
T5N CNJ A1YQ1G B1 ENW

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 :
1780 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1139 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1120 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
375 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
>2 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
36400 mg/kg/13W-C
TOXIC EFFECTS :
Related to Chronic Data - changes in prostate weight
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
6500 mg/kg/26D-I
TOXIC EFFECTS :
Brain and Coverings - other degenerative changes Nutritional and Gross Metabolic - weight loss or decreased weight gain
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
292 gm/kg/2Y-C
TOXIC EFFECTS :
Brain and Coverings - changes in brain weight Blood - changes in erythrocyte (RBC) count Related to Chronic Data - changes in testicular weight
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
25600 mg/kg
SEX/DURATION :
male 64 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - male fertility index (e.g. # males impregnating females per # males exposed to fertile nonpregnant females) Reproductive - Fertility - litter size (e.g. # fetuses per litter; measured before birth)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
35 gm/kg
SEX/DURATION :
male 61 day(s) pre-mating female 14 day(s) pre-mating - 13 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
11200 mg/kg
SEX/DURATION :
male 4 week(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count) Reproductive - Paternal Effects - testes, epididymis, sperm duct Reproductive - Fertility - male fertility index (e.g. # males impregnating females per # males exposed to fertile nonpregnant females)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Unreported
DOSE :
5600 mg/kg
SEX/DURATION :
male 14 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count) Reproductive - Fertility - male fertility index (e.g. # males impregnating females per # males exposed to fertile nonpregnant females)

MUTATION DATA

TYPE OF TEST :
Host-mediated assay
TEST SYSTEM :
Rodent - mouse Bacteria - Salmonella typhimurium
DOSE/DURATION :
50 mg/kg
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 86,243,1981

 Safety Information

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H302
Hazard Codes Xn: Harmful;
Risk Phrases R22
Safety Phrases S36
RIDADR NONH for all modes of transport
WGK Germany 3
RTECS NI5460000
HS Code 2933290090

 Customs

HS Code 2933290090
Summary 2933290090. other compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Articles32

More Articles
Determination of nitroimidazole residues in aquaculture tissue using ultra high performance liquid chromatography coupled to tandem mass spectrometry.

J. Chromatogr. B. Analyt. Technol. Biomed. Life Sci. 960 , 105-15, (2014)

An UHPLC-MS/MS method was developed for the quantitative confirmatory analysis of residues of nitroimidazole drugs (dimetridazole, ipronidazole, metronidazole, ornidazole and ronidazole) and their cor...

Phenotypic and transcriptional profiling in Entamoeba histolytica reveal costs to fitness and adaptive responses associated with metronidazole resistance.

Front. Microbiol. 6 , 354, (2015)

Antimicrobial chemotherapy is critical in the fight against infectious diseases caused by Entamoeba histolytica. Among the drugs available for the treatment of amebiasis, metronidazole (MTZ) is consid...

Genetically different clonal isolates of Trichomonas gallinae, obtained from the same bird, can vary in their drug susceptibility, an in vitro evidence.

Parasitol. Int. 60(2) , 213-5, (2011)

Trichomonas gallinae is a flagellated protozoon which parasitizes in the upper digestive tract of different birds, especially columbiformes (doves and pigeons) and falconiformes. The parasite is also ...

 Synonyms

1-(3-Chloro-2-hydroxypropyl)-2-methyl-5-nitroimidazole
α-(Chloromethyl)-2-methyl-5-nitro-1H-imidazole-1-ethanol
α-(Chloromethyl)-2-methyl-5-nitroimidazole-1-ethanol
UNII:62XCK0G93T
Imidazole-1-ethanol, α- (chloromethyl)-2-methyl-5-nitro-
Ornidazole
1-chloro-3-(2-methyl-5-nitro-1H-imidazol-1-yl)propan-2-ol
Imidazole-1-ethanol, α-(chloromethyl)-2-methyl-5-nitro-
α-(Chloromethyl)-2-methyl-5-nitro-1H-imidazole-1-ethanol (9CI)
MFCD00057960
1-Chloro-3-(2-methyl-5-nitro-1H-imidazol-1-yl)-2-propanol
1H-Imidazole-1-ethanol, α-(chloromethyl)-2-methyl-5-nitro-
a-(Chloromethyl)-2-methyl-5-nitro-1H-imidazole-1-ethanol
1H-Imidazole-1-ethanol, α- (chloromethyl)-2-methyl-5-nitro-
1-chloro-3-(2-methyl-5-nitroimidazol-1-yl)propan-2-ol
EINECS 240-826-0
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Chemsrc provides Ornidazole(CAS#:16773-42-5) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of Ornidazole are included as well.>> amp version: Ornidazole

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