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Isoniazid

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Isoniazid molecular structure
Molecular structure

The Sigma-Aldrich catalog lists 6 grades and pack sizes of Isoniazid (CAS 54-85-3). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS54-85-3
Molecular formulaC6H7N3O
Molecular weight137.14 g/mol
IUPAC namepyridine-4-carbohydrazide
SynonymsIsonicotinic acid hydrazide · Isonicotinohydrazide · pyridine-4-carbohydrazide · Isoniazide · Rimifon · Nydrazid
Safety & Hazards (GHS) Warning
Irritant Irritant
  • H302 Harmful if swallowed
  • H315 Causes skin irritation

⚠️ For information only (source: EU CLP harmonised classification and ECHA notifications, via PubChem); not a substitute for the official Safety Data Sheet (SDS).

Catalog codes and grades

Brand Product / grade Code
Sigma ISONIAZID I0500000
I3377-250G
I3377-50G
I3377-5G
PHR1932-500MG
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Sigma ISONIAZID, UNITED STATES PHARMACOPEIA (U 1349706-200MG Request Quote

For information only; specifications and availability are confirmed at quotation. Prices are not listed.