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Fomepizole

Synonyms: 4-Methylpyrazole · 1H-Pyrazole, 4-methyl- · Fomepizol · 4-Methylpyrazol

CAS No.7554-65-6
FormulaC4H6N2
Mol. weight82.10
Catalogue No.VQ-035210
PurityReference Standard
HSN38229090

Fomepizole (CAS 7554-65-6) – Fomepizole reference standard. C4H6N2, MW 82.1. Get a quote from Vaqora Chemicals, COA included, shipped worldwide.

Pack sizesPrice on quotation · bulk available
10 mg
25 mg
50 mg
100 mg
Bulk / custom pack · kg to MT
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Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing

About Fomepizole

Listed under CAS 7554-65-6, Fomepizole is a high-purity reference standard of Fomepizole available from Vaqora Chemicals. Its molecular formula is C4H6N2 and its molecular weight is 82.1 g/mol. Its systematic (IUPAC) name is 4-methyl-1H-pyrazole. Common synonyms include 4-Methylpyrazole and 1H-Pyrazole, 4-methyl-.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Laboratories use this Fomepizole standard for identity and assay testing, system suitability checks and method validation supporting ANDA and DMF filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Fomepizole is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

  • Identification & assay
  • Method development & validation
  • QC reference material

Industries

Related to Fomepizole

View every impurity, metabolite and intermediate we list for Fomepizole.

Fomepizole impurities

Specifications & identifiers

Chemical identifiers
Product nameFomepizole
Catalogue No.VQ-035210
CAS Number7554-65-6
IUPAC name4-methyl-1H-pyrazole
Molecular formulaC4H6N2
Molecular weight82.1 g/mol
Exact mass82.0531
GradeReference Standard
HSN code38229090
InChIKeyRIKMMFOAQPJVMX-UHFFFAOYSA-N
SMILESCC1=CNN=C1
PubChem CID3406
Physical properties
Physical formSolid
LogP (XLogP3)1.4
H-bond donors / acceptors1 / 1
TPSA28.7 Ų
Synonyms4-Methylpyrazole, 1H-Pyrazole, 4-methyl-, Fomepizol, 4-Methylpyrazol, Antizol, 4-MP, 4-methyl pyrazole, Antizol-vet, 4-methyl-pyrazole, 4-methyl-1h_pyrazole

Safety & hazard information (GHS)

GHS05 Corrosive
Corrosive
GHS07 Harmful / irritant
Harmful / irritant

Signal word: Danger

Hazard statements

  • H302Harmful if swallowed
  • H312Harmful in contact with skin
  • H314Causes severe skin burns and eye damage
  • H315Causes skin irritation
  • H318Causes serious eye damage
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements: P260, P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P316, P317, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P363, P403 + P233

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Frequently asked questions

What is the CAS number of Fomepizole?

The CAS Registry Number of Fomepizole is 7554-65-6. It is also known as 4-Methylpyrazole, 1H-Pyrazole, 4-methyl-, Fomepizol.

What is the molecular formula and molecular weight of Fomepizole?

Fomepizole has the molecular formula C4H6N2 and a molecular weight of 82.1 g/mol. Its IUPAC name is 4-methyl-1H-pyrazole.

What is Fomepizole used for?

Fomepizole is supplied as a characterised reference material related to Fomepizole. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Fomepizole can I order?

We supply Fomepizole in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Fomepizole?

Yes. Every lot of Fomepizole is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Fomepizole be shipped internationally?

Yes. Fomepizole is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.

Enquire about Fomepizole

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Why buyers choose Vaqora

  • Batch-traceable lots with COA
  • R&D packs to multi-tonne supply
  • IATA / IMDG dangerous-goods packing
  • EXW, FOB, CIF, DAP Incoterms
  • Custom synthesis & sourcing
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