Paracetamol Nitroso Impurity

About Paracetamol Nitroso Impurity

Paracetamol Nitroso Impurity is a nitrosamine impurity of Paracetamol carrying the CAS registry number 6947-36-0, specified at 99% purity. With the molecular formula C14H14N2O3, it has a molar mass of 258.27 g/mol. Its systematic (IUPAC) name is N,N-bis(4-methoxyphenyl)nitrous amide. Alternative names: 4,4′-Dimethoxy-N-nitrosodiphenylamine and Apixaban Impurity N1.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

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 Paracetamol, method validation (AMV) and regulatory filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

We offer Paracetamol Nitroso Impurity in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide. Stock is available for quick dispatch.

Typical applications

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

Industries

Related to Paracetamol

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

Paracetamol impurities

Specifications & identifiers

Chemical identifiers
Product name	Paracetamol Nitroso Impurity
Catalogue No.	VQ-007022
CAS Number	6947-36-0
IUPAC name	N,N-bis(4-methoxyphenyl)nitrous amide
Molecular formula	C₁₄H₁₄N₂O₃
Molecular weight	258.27 g/mol
Exact mass	258.1004
Grade	Reference Standard
Purity / assay	99%
HSN code	38229090
InChIKey	LFYGAGWUDURWIE-UHFFFAOYSA-N
SMILES	COC1=CC=C(C=C1)N(C2=CC=C(C=C2)OC)N=O
PubChem CID	245215

Physical properties
Physical form	Solid
LogP (XLogP3)	3.1
H-bond donors / acceptors	0 / 5
TPSA	51.1 Å²

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 Paracetamol Nitroso Impurity?

The CAS Registry Number of Paracetamol Nitroso Impurity is 6947-36-0. It is also known as 4,4′-Dimethoxy-N-nitrosodiphenylamine, 4-Methoxy-N-(4-methoxyphenyl)-N-nitrosobenzenamine, Apixaban Impurity N1.

What is the molecular formula and molecular weight of Paracetamol Nitroso Impurity?

Paracetamol Nitroso Impurity has the molecular formula C14H14N2O3 and a molecular weight of 258.27 g/mol. Its IUPAC name is N,N-bis(4-methoxyphenyl)nitrous amide.

What is Paracetamol Nitroso Impurity used for?

Paracetamol Nitroso Impurity is supplied as a characterised reference material related to Paracetamol. 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 Paracetamol Nitroso Impurity can I order?

We supply Paracetamol Nitroso Impurity in Reference Standard (99%) grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Paracetamol Nitroso Impurity?

Yes. Every lot of Paracetamol Nitroso Impurity 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 Paracetamol Nitroso Impurity be shipped internationally?

Yes. We export Paracetamol Nitroso Impurity worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.