N-Methyl-N-Nitroso p-Toluidine

Name: N-Methyl-N-Nitroso p-Toluidine
Brand: Vaqora Chemicals
SKU: VQ-027225

About N-Methyl-N-Nitroso p-Toluidine

N-Methyl-N-Nitroso p-Toluidine is a nitrosamine impurity of Toluidine carrying the CAS registry number 937-24-6. Its molecular formula is C8H10N2O and its molecular weight is 150.18 g/mol. Systematically, it is named N-methyl-N-(4-methylphenyl)nitrous amide. Alternative names: P-Toluidine, N-methyl-N-nitroso- and 4-Methyl-N-nitroso-N-methylaniline.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

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 Toluidine, method validation (AMV) and regulatory filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies N-Methyl-N-Nitroso p-Toluidine in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

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

Industries

Related to Toluidine

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

Toluidine impurities

Specifications & identifiers

Chemical identifiers
Product name	N-Methyl-N-Nitroso p-Toluidine
Catalogue No.	VQ-027225
CAS Number	937-24-6
IUPAC name	N-methyl-N-(4-methylphenyl)nitrous amide
Molecular formula	C₈H₁₀N₂O
Molecular weight	150.18 g/mol
Exact mass	150.0793
Grade	Reference Standard
HSN code	38229090
InChIKey	NEIPHSHFJXGGOS-UHFFFAOYSA-N
SMILES	CC1=CC=C(C=C1)N(C)N=O
PubChem CID	101493

Physical properties
Physical form	Solid
LogP (XLogP3)	2.5
H-bond donors / acceptors	0 / 3
TPSA	32.7 Å²
Synonyms	P-Toluidine, N-methyl-N-nitroso-, 4-Methyl-N-nitroso-N-methylaniline, N,4-dimethyl-N-nitrosoaniline, N-Nitroso-N-methyl-p-toluidin, N-Methyl-N-(p-tolyl)nitrous amide, N-Nitroso N-Methyl-4-Methyl-Aniline, Benzenamine, N,4-dimethyl-N-nitroso-, 1-Methyl-1-(4-methylphenyl)-2-oxohydrazine #

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H311Toxic in contact with skin
H319Causes serious eye irritation
H351Suspected of causing cancer

Precautionary statements: P203, P262, P264, P264 + P265, P270, P280, P301 + P316, P302 + P352, P305 + P351 + P338, P316, P318, P321, P330, P337 + P317, P361 + P364, 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 N-Methyl-N-Nitroso p-Toluidine?

The CAS Registry Number of N-Methyl-N-Nitroso p-Toluidine is 937-24-6. It is also known as P-Toluidine, N-methyl-N-nitroso-, 4-Methyl-N-nitroso-N-methylaniline, N,4-dimethyl-N-nitrosoaniline.

What is the molecular formula and molecular weight of N-Methyl-N-Nitroso p-Toluidine?

N-Methyl-N-Nitroso p-Toluidine has the molecular formula C8H10N2O and a molecular weight of 150.18 g/mol. Its IUPAC name is N-methyl-N-(4-methylphenyl)nitrous amide.

What is N-Methyl-N-Nitroso p-Toluidine used for?

N-Methyl-N-Nitroso p-Toluidine is supplied as a characterised reference material related to Toluidine. 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 N-Methyl-N-Nitroso p-Toluidine can I order?

We supply N-Methyl-N-Nitroso p-Toluidine 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 N-Methyl-N-Nitroso p-Toluidine?

Yes. Every lot of N-Methyl-N-Nitroso p-Toluidine 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 N-Methyl-N-Nitroso p-Toluidine be shipped internationally?

Yes. N-Methyl-N-Nitroso p-Toluidine 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.