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Merck

I0500000

Isoniazid

European Pharmacopoeia (EP) Reference Standard

Synonym(s):

4-Pyridinecarboxylic acid hydrazide, INH, Isonicotinic acid hydrazide, Isonicotinic hydrazide

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About This Item

Empirical Formula (Hill Notation):
C6H7N3O
CAS Number:
Molecular Weight:
137.14
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
119374

Product Name

Isoniazid, European Pharmacopoeia (EP) Reference Standard

InChI

1S/C6H7N3O/c7-9-6(10)5-1-3-8-4-2-5/h1-4H,7H2,(H,9,10)

SMILES string

NNC(=O)c1ccncc1

InChI key

QRXWMOHMRWLFEY-UHFFFAOYSA-N

grade

pharmaceutical primary standard

agency

EP Reference Standard

API family

isoniazid

manufacturer/tradename

EDQM

mp

171-173 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

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Application

Isoniazid EP Reference standard, intended for use in laboratory tests only as specifically prescribed in the European Pharmacopoeia.

Biochem/physiol Actions

Antibiotic for treatment of Mycobacterium tuberculosis, inhibits mycolic acid biosynthesis. Metabolized by hepatic N-acetyltransferase (NAT) and cytochrome P450 2E1 (CYP2E1) to form hepatotoxins. Selectively induces expression of CYP2E1. Reversibly inhibits CYP2C19 and CYP3A4 activities, and mechanistically inactivates CYP1A2, CYP2A6, CYP2C19 and CYP3A4 at clinically relevant concentrations.

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Other Notes

Sales restrictions may apply.

Packaging

The product is delivered as supplied by the issuing Pharmacopoeia. For the current unit quantity, please visit the EDQM reference substance catalogue.

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Acute Tox. 4 Oral - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3


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A fresh look at the mechanism of isoniazid-induced hepatotoxicity.
I G Metushi et al.
Clinical pharmacology and therapeutics, 89(6), 911-914 (2011-03-18)
Andrew D Kerkhoff et al.
PloS one, 7(11), e49928-e49928 (2012-12-05)
People living with HIV (PLWH) who have positive tuberculin skin tests (TST) benefit from isoniazid preventive therapy (IPT) whereas those testing TST-negative do not. Revised World Health Organization guidelines explicitly state that assessment of TST is not a requirement for
Laura Muñoz et al.
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 60(3), 349-356 (2014-10-15)
The extent to which anti-tumor necrosis factor (TNF)-associated tuberculosis can be prevented is unclear, and there is no established guidance on the optimal screening strategy for latent tuberculosis (LTBI) in patients about to start anti-TNF therapy. We aimed to determine
Anandi Martin et al.
The Journal of antimicrobial chemotherapy, 62(1), 56-64 (2008-04-15)
The reference standard methods for drug susceptibility testing (DST) of M. tuberculosis are very slow to give results, and due to the emergence of multidrug-resistant tuberculosis (MDR-TB) and extensively drug-resistant tuberculosis, there is an urgent demand for new, rapid and
Kanchan Ajbani et al.
Antimicrobial agents and chemotherapy, 59(1), 414-420 (2014-11-05)
Reliable molecular diagnostics, which detect specific mutations associated with drug resistance, are promising technologies for the rapid identification and monitoring of drug resistance in Mycobacterium tuberculosis isolates. Pyrosequencing (PSQ) has the ability to detect mutations associated with first- and second-line

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