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Nitrosamine Impurities

4-Nitroso-3,5-xylenol

Reference StandardAvailable on request

4-Nitroso-3,5-xylenol (CAS 19628-76-3) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 mg.

Pack sizes
4-Nitroso-3,5-xylenol chemical structure
CAS number19628-76-3
FormulaC8H9NO2
Molar mass151.16 g/mol
Physical formSolid
HS code38229090
InChIKeyZVUJMNCTXGSXSQ-UHFFFAOYSA-N
IUPAC name3,5-dimethyl-4-nitrosophenol

About 4-Nitroso-3,5-xylenol

4-Nitroso-3,5-xylenol is supplied by Zemixal as a characterised reference material for Fludarabine analysis. For your records (Reference Standard), the material is defined by CAS 19628-76-3, formula C8H9NO2 and molar mass 151.16 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

Storage and safety notes

Hazard communication follows GHS (Danger: H301 and H319). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Every shipment includes a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Fludarabine

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

Fludarabine standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of 4-Nitroso-3,5-xylenol
Product name4-Nitroso-3,5-xylenol
Catalogue numberZX-043620
CAS number19628-76-3
IUPAC name3,5-dimethyl-4-nitrosophenol
Molecular formulaC8H9NO2
Molar mass151.16 g/mol
Exact mass151.0633
GradeReference Standard
Physical formSolid
XLogP31.7
H-bond donors / acceptors1 / 3
Topological polar surface area49.7 Ų
HS code38229090
InChIKeyZVUJMNCTXGSXSQ-UHFFFAOYSA-N
SMILESCC1=CC(=CC(=C1N=O)C)O
PubChem CID236019
SynonymsPhenol, 3,5-dimethyl-4-nitroso-, 3, 4-nitroso-, Phenol,5-dimethyl-4-nitroso-, 3,5-Xylenol, 4-nitroso-, 2,6-dimethyl-[1,4]-benzoquinone oxime

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

Safety and GHS hazards

GHS06 Acute toxicity
Acute toxicity

Signal word Danger

  • H301Toxic if swallowed
  • H319Causes serious eye irritation

Precautionary statements P264, P264 + P265, P270, P280, P301 + P316, P305 + P351 + P338, P321, P330, P337 + P317, P405, 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-Nitroso-3,5-xylenol
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted 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-Nitroso-3,5-xylenol

Which CAS number identifies 4-Nitroso-3,5-xylenol?
4-Nitroso-3,5-xylenol is registered under CAS 19628-76-3. You may also see it listed as Phenol, 3,5-dimethyl-4-nitroso-, 3, 4-nitroso-, Phenol,5-dimethyl-4-nitroso-. Our catalogue number for this item is ZX-043620.
What are the formula and molar mass of 4-Nitroso-3,5-xylenol?
For 4-Nitroso-3,5-xylenol, its formula is C8H9NO2 and its molar mass is 151.16 g/mol. The systematic (IUPAC) name is 3,5-dimethyl-4-nitrosophenol. InChIKey ZVUJMNCTXGSXSQ-UHFFFAOYSA-N lets you match it in any structure database.
How is 4-Nitroso-3,5-xylenol used in pharmaceutical QC?
4-Nitroso-3,5-xylenol is a characterised reference material linked to Fludarabine. 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-Nitroso-3,5-xylenol?
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-Nitroso-3,5-xylenol?
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-Nitroso-3,5-xylenol to my country?
Yes. Because 4-Nitroso-3,5-xylenol 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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