Isoniazid Impurity 1

Name: Isoniazid Impurity 1
Brand: Vaqora Chemicals
SKU: VQ-045328

About Isoniazid Impurity 1

Listed under CAS 15420-02-7, Isoniazid Impurity 1 is an impurity of Isoniazid available from Vaqora Chemicals. With the molecular formula C12H8N4O, it has a molar mass of 224.22 g/mol. Its systematic (IUPAC) name is 2,5-dipyridin-4-yl-1,3,4-oxadiazole. Common synonyms include 2,5-Bis(4-pyridyl)-1,3,4-oxadiazole and 2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. It carries the GHS signal word “Warning” with 4 hazard statements. Review the Safety Data Sheet before use.

As a characterised impurity of Isoniazid, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Isoniazid Impurity 1 is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Isoniazid

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

Isoniazid impurities

Specifications & identifiers

Chemical identifiers
Product name	Isoniazid Impurity 1
Catalogue No.	VQ-045328
CAS Number	15420-02-7
IUPAC name	2,5-dipyridin-4-yl-1,3,4-oxadiazole
Molecular formula	C₁₂H₈N₄O
Molecular weight	224.22 g/mol
Exact mass	224.0698
Grade	Reference Standard
HSN code	38229090
InChIKey	FFGFSQOCKQVECP-UHFFFAOYSA-N
SMILES	C1=CN=CC=C1C2=NN=C(O2)C3=CC=NC=C3
PubChem CID	699787

Physical properties
Physical form	Solid
LogP (XLogP3)	0.9
H-bond donors / acceptors	0 / 5
TPSA	64.7 Å²
Synonyms	2,5-Bis(4-pyridyl)-1,3,4-oxadiazole, 2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole, 4,4'-(1,3,4-oxadiazole-2,5-diyl)dipyridine, 4-[5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl]pyridine, Pyridine,4,4'-(1,3,4-oxadiazole-2,5-diyl)bis-, Isoniazid Impurity 7, 2,5-di(4-pyridyl)-1,3,4-oxadiazole, Topiroxostat Impurity D

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

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

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Isoniazid Impurity 1?

The CAS Registry Number of Isoniazid Impurity 1 is 15420-02-7. It is also known as 2,5-Bis(4-pyridyl)-1,3,4-oxadiazole, 2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole, 4,4'-(1,3,4-oxadiazole-2,5-diyl)dipyridine.

What is the molecular formula and molecular weight of Isoniazid Impurity 1?

Isoniazid Impurity 1 has the molecular formula C12H8N4O and a molecular weight of 224.22 g/mol. Its IUPAC name is 2,5-dipyridin-4-yl-1,3,4-oxadiazole.

What is Isoniazid Impurity 1 used for?

Isoniazid Impurity 1 is supplied as a characterised reference material related to Isoniazid. 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 Isoniazid Impurity 1 can I order?

We supply Isoniazid Impurity 1 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 Isoniazid Impurity 1?

Yes. Every lot of Isoniazid Impurity 1 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 Isoniazid Impurity 1 be shipped internationally?

Yes. Isoniazid Impurity 1 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.