M1387
4-Methylpyrazole hydrochloride
alcohol dehydrogenase inhibitor
Synonym(s):
Fomepizole
Sign In to View Organizational & Contract Pricing.
Select a Size
About This Item
Empirical Formula (Hill Notation):
C4H6N2 · HCl
CAS Number:
Molecular Weight:
118.56
NACRES:
NA.77
PubChem Substance ID:
MDL number:
UNSPSC Code:
12352100
InChI
1S/C4H6N2.ClH/c1-4-2-5-6-3-4;/h2-3H,1H3,(H,5,6);1H
SMILES string
Cl.Cc1cn[nH]c1
InChI key
PUCXJHNDMYZOHG-UHFFFAOYSA-N
biological source
synthetic (organic)
assay
≥95%
form
powder
mp
157-159 °C
solubility
methanol: 100 mg/mL, clear, colorless to yellow
storage temp.
2-8°C
Quality Level
Gene Information
human ... ADH1A(124), ADH1B(125), ADH1C(126)
Related Categories
Application
4-Methylpyrazole hydrochloride has been used:
- as a cytochrome P450 2E1 inhibitor
- as cytochrome P450 2E1 and alcohol dehydrogenase inhibitor in 1C11 neural progenitor cells
- to inhibit ethanol oxidation in VL-17A cells expressing alcohol dehydrogenase and HepG2 cells
Useful as an antidote in methanol and ethylene glycol poisoning.
Biochem/physiol Actions
4-Methylpyrazole (4MP) inhibits ethanol oxidation in liver microsomes. It also blocks the c-Jun N-terminal kinase (JNK) activation in in vitro liver injury models.
Alcohol dehydrogenase inhibitor
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Kenneth E McMartin et al.
Clinical toxicology (Philadelphia, Pa.), 50(5), 375-383 (2012-05-05)
Fomepizole, a potent inhibitor of alcohol dehydrogenase, has replaced ethanol as antidote for methanol and ethylene glycol intoxications because of a longer duration of action and fewer adverse effects. Prior human studies have indicated that single doses of fomepizole are
Raido Paasma et al.
Clinical toxicology (Philadelphia, Pa.), 50(9), 823-831 (2012-09-21)
INTRODUCTION. Thorough prognostic and metabolic studies of methanol poisonings are scarce. Our aims were to evaluate the factors associated with sequelae and death from methanol poisoning, to develop a simple risk-assessment chart to evaluate factors associated with sequelae and death
Graham A Tipples et al.
Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology, 30(3), 233-238 (2004-05-12)
Rubella virus generally causes a mild fever, rash illness similar in clinical presentation to infections by other viruses including measles and parvovirus B19. Rubella infections in pregnant women in the first trimester carry a high risk of congenital rubella syndrome
Trang T T Nguyen et al.
Critical reviews in immunology, 36(2), 163-177 (2016-12-03)
Most serum immunoglobulin M (IgM) is "natural IgM", which is produced apparently spontaneously by a distinct subset of B cells requiring no exogenous antigenic or microbial stimuli. Natural IgM is an evolutionarily conserved molecule and reacts with a variety of
Paul G Thomes et al.
Autophagy, 9(1), 63-73 (2012-10-24)
Acute and chronic ethanol administration increase autophagic vacuole (i.e., autophagosome; AV) content in liver cells. This enhancement depends on ethanol oxidation. Here, we used parental (nonmetabolizing) and recombinant (ethanol-metabolizing) Hep G2 cells to identify the ethanol metabolite that causes AV
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service