4-Nitrosodiphenylamine

Name: 4-Nitrosodiphenylamine
Brand: Zemixal
SKU: ZX-035825

Reference StandardAvailable on request

Order 4-Nitrosodiphenylamine (CAS 156-10-5) online at Zemixal: C12H10N2O, COA and SDS with every lot, worldwide shipping.

Pack sizes

4-Nitrosodiphenylamine chemical structure

CAS number156-10-5

FormulaC₁₂H₁₀N₂O

Molar mass198.22 g/mol

Physical formSolid

HS code38229090

InChIKeyOIJHFHYPXWSVPF-UHFFFAOYSA-N

IUPAC name4-nitroso-N-phenylaniline

About 4-Nitrosodiphenylamine

Zemixal lists 4-Nitrosodiphenylamine for laboratories that identify, quantify or control Nitroso and its related substances. Key data (Reference Standard): CAS 156-10-5, formula C12H10N2O and molar mass 198.22 g/mol. It is handled as a solid.

Use cases we see most often

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

Safe handling

Classified under GHS with signal word Warning and hazard statements H302, H315 and H319. Read the SDS before first use.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Nitroso

See every impurity, metabolite and related compound we list for this API.

Nitroso standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of 4-Nitrosodiphenylamine
Product name	4-Nitrosodiphenylamine
Catalogue number	ZX-035825
CAS number	156-10-5
IUPAC name	4-nitroso-N-phenylaniline
Molecular formula	C₁₂H₁₀N₂O
Molar mass	198.22 g/mol
Exact mass	198.0793
Grade	Reference Standard
Physical form	Solid
XLogP3	2.5
H-bond donors / acceptors	1 / 3
Topological polar surface area	41.5 Å²
HS code	38229090
InChIKey	OIJHFHYPXWSVPF-UHFFFAOYSA-N
SMILES	C1=CC=C(C=C1)NC2=CC=C(C=C2)N=O
PubChem CID	9074
Synonyms	p-Nitrosodiphenylamine, Naugard TKB, N-Phenyl-p-nitrosoaniline, Diphenylamine, 4-nitroso-, p-Nitrosodifenylamin, 4-Nitroso-N-phenylbenzenamine, p-Nitroso-N-phenylaniline, p-Phenylaminonitrosobenzene, Nitrous diphenylamide, N-Phenyl-para-nitrosoaniline, para-Nitroso-N-phenylaniline, Amine, diphenyl, 4-nitroso-

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

Irritant or harmful

Signal word Warning

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation

Precautionary statements P264, P264 + P265, P270, P280, P301 + P317, P302 + P352, P305 + P351 + P338, P321, P330, P332 + P317, P337 + P317, P362 + P364, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of 4-Nitrosodiphenylamine
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 4-Nitrosodiphenylamine

Which CAS number identifies 4-Nitrosodiphenylamine?

4-Nitrosodiphenylamine is registered under CAS 156-10-5. You may also see it listed as p-Nitrosodiphenylamine, Naugard TKB, N-Phenyl-p-nitrosoaniline. Our catalogue number for this item is ZX-035825.

What are the formula and molar mass of 4-Nitrosodiphenylamine?

For 4-Nitrosodiphenylamine, its formula is C12H10N2O and its molar mass is 198.22 g/mol. The systematic (IUPAC) name is 4-nitroso-N-phenylaniline. InChIKey OIJHFHYPXWSVPF-UHFFFAOYSA-N lets you match it in any structure database.

How is 4-Nitrosodiphenylamine used in pharmaceutical QC?

4-Nitrosodiphenylamine is a characterised reference material linked to Nitroso. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for 4-Nitrosodiphenylamine?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with 4-Nitrosodiphenylamine?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship 4-Nitrosodiphenylamine to my country?

Yes. Because 4-Nitrosodiphenylamine is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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