Quinoxaline

Name: Quinoxaline
Brand: Vaqora Chemicals
SKU: VQ-040046

About Quinoxaline

Vaqora Chemicals supplies Quinoxaline, a process intermediate or related compound of Clopidogrel registered under CAS number 91-19-0. Its molecular formula is C8H6N2 and its molecular weight is 130.15 g/mol. Common synonyms include 1,4-Benzodiazine and Benzoparadiazine.

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. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Process chemists and analysts use it when developing synthetic routes to Clopidogrel, tracking process-related impurities and validating analytical methods. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Quinoxaline in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development
Fine chemical synthesis

Industries

Related to Clopidogrel

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

Clopidogrel impurities

Specifications & identifiers

Chemical identifiers
Product name	Quinoxaline
Catalogue No.	VQ-040046
CAS Number	91-19-0
IUPAC name	quinoxaline
Molecular formula	C₈H₆N₂
Molecular weight	130.15 g/mol
Exact mass	130.0531
HSN code	2933
InChIKey	XSCHRSMBECNVNS-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)N=CC=N2
PubChem CID	7045

Physical properties
Physical form	Solid
LogP (XLogP3)	1.3
H-bond donors / acceptors	0 / 2
TPSA	25.8 Å²
Synonyms	1,4-Benzodiazine, Benzoparadiazine, Benzopyrazine, Phenopiazine, Phenpiazine, Quinazine, 1,4-Diazanaphthalene, Benzo[a]pyrazine, 1,4-Naphthyridine, Chinoxalin, Benzo(a)pyrazine, 1,4-Quinoxaline

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, 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 Quinoxaline?

The CAS Registry Number of Quinoxaline is 91-19-0. It is also known as 1,4-Benzodiazine, Benzoparadiazine, Benzopyrazine.

What is the molecular formula and molecular weight of Quinoxaline?

Quinoxaline has the molecular formula C8H6N2 and a molecular weight of 130.15 g/mol. Its IUPAC name is quinoxaline.

What is Quinoxaline used for?

Quinoxaline is supplied as a characterised reference material related to Clopidogrel. 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 Quinoxaline can I order?

We supply Quinoxaline, 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 Quinoxaline?

Yes. Every lot of Quinoxaline 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 Quinoxaline be shipped internationally?

Yes. Quinoxaline 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.