| Bioactivity | Fomepizole (4-Methylpyrazole) hydrochloride is a potent and orally active cytochrome P450 (CYP2E1) inhibitor. Fomepizole hydrochloride is a competitive inhibitor of the enzyme alcohol dehydrogenase. Fomepizole hydrochloride blocks further conversion of methanol and ethylene glycol to toxic metabolites. Fomepizole hydrochloride has the potential for an antidote for ethylene glycol or methanol poisoning[1][2][3]. |
| In Vivo | Pretreatment with Fomepizole (4-Methylpyrazole; 25 mg/kg; IP) prolongs ethanol neurobehavioral toxicity in CD-1 mice[4] Animal Model: |
| Name | Fomepizole hydrochloride |
| CAS | 56010-88-9 |
| Formula | C4H7ClN2 |
| Molar Mass | 118.56 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | Please store the product under the recommended conditions in the Certificate of Analysis. |
| Reference | [1]. Casavant MJ. Fomepizole in the treatment of poisoning. Pediatrics. 2001 Jan;107(1):170. [2]. Lepik KJ, et al. Adverse drug events associated with the antidotes for methanol and ethylene glycol poisoning: a comparison of ethanol and fomepizole. Ann Emerg Med. 2009 Apr;53(4):439-450.e10. [3]. Garrett Rampon, et al. Use of fomepizole as an adjunct in the treatment of acetaminophen overdose: a case series. Toxicology Communications. Volume 4, 2020 - Issue 1. [4]. Páez AM, et al. Effects of 4-methylpyrazole on ethanol neurobehavioral toxicity in CD-1 mice. Acad Emerg Med. 2004 Aug;11(8):820-6. |
Fomepizole hydrochloride
CAS: 56010-88-9 F: C4H7ClN2 W: 118.56
Fomepizole (4-Methylpyrazole) hydrochloride is a potent and orally active cytochrome P450 (CYP2E1) inhibitor. Fomepizole
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