2-Nitrosopyridine

Name: 2-Nitrosopyridine
Brand: Vaqora Chemicals
SKU: VQ-039649

About 2-Nitrosopyridine

Listed under CAS 79917-37-6, 2-Nitrosopyridine is a nitrosamine impurity of Antipyrine available from Vaqora Chemicals. The compound has the formula C5H4N2O, corresponding to a molecular weight of 108.1 g/mol. Alternative names: Pyridine, nitroso- and Pyridine, 2-nitroso-.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. It carries the GHS signal word “Danger” with 6 hazard statements. Review the Safety Data Sheet before use.

It is used as a reference standard for trace-level detection and quantitation of nitrosamine impurities by LC-MS/MS or GC-MS, supporting nitrosamine risk assessments for Antipyrine, method validation (AMV) and regulatory filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Nitrosamine risk assessment
Trace LC-MS/MS quantitation
Method validation (AMV)
Regulatory submissions

Industries

Related to Antipyrine

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

Antipyrine impurities

Specifications & identifiers

Chemical identifiers
Product name	2-Nitrosopyridine
Catalogue No.	VQ-039649
CAS Number	79917-37-6
IUPAC name	2-nitrosopyridine
Molecular formula	C₅H₄N₂O
Molecular weight	108.1 g/mol
Exact mass	108.0324
Grade	Reference Standard
HSN code	38229090
InChIKey	UJMHYOGYJDQSOH-UHFFFAOYSA-N
SMILES	C1=CC=NC(=C1)N=O
PubChem CID	149263

Physical properties
Physical form	Solid
LogP (XLogP3)	0.6
H-bond donors / acceptors	0 / 3
TPSA	42.3 Å²

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H227Combustible liquid
H301Toxic if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H351Suspected of causing cancer

Precautionary statements: P203, P210, P261, P264, P264 + P265, P270, P271, P280, P301 + P316, P302 + P352, P304 + P340, P305 + P351 + P338, P318, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P370 + P378, P403, 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 2-Nitrosopyridine?

The CAS Registry Number of 2-Nitrosopyridine is 79917-37-6. It is also known as Pyridine, nitroso-, Pyridine, 2-nitroso-, nitrosopyridine.

What is the molecular formula and molecular weight of 2-Nitrosopyridine?

2-Nitrosopyridine has the molecular formula C5H4N2O and a molecular weight of 108.1 g/mol. Its IUPAC name is 2-nitrosopyridine.

What is 2-Nitrosopyridine used for?

2-Nitrosopyridine is supplied as a characterised reference material related to Antipyrine. 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 2-Nitrosopyridine can I order?

We supply 2-Nitrosopyridine 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 2-Nitrosopyridine?

Yes. Every lot of 2-Nitrosopyridine 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 2-Nitrosopyridine be shipped internationally?

Yes. 2-Nitrosopyridine 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.