Impurity reference standards

Nevirapine impurity standards

For Nevirapine, the Zemixal catalogue holds 11 impurity and reference standards that support release testing, stability programmes and regulatory dossiers. Counted by type, there are 4 pharmacopoeial impurities and 2 isotope-labelled standards.

11reference materials

4pharmacopoeial

2isotope labelled

Every standard comes with a certificate of analysis. Structure confirmation data, typically NMR, MS and chromatographic purity, is available on request. Typical uses are method development and validation, relative response factor work, forced degradation studies and the impurity sections of ANDA, DMF or CEP filings.

By impurity type

Pharmacopoeial4EP, USP, BP or JP named impurities

Isotope labelled2Deuterated, 13C or 15N internal standards

Counts are based on product names. One compound can fall into more than one type.

All Nevirapine reference materials

1–11 of 11 standards

2-Chloro-N-(2-chloro-4-methyl-3-pyridinyl)-3-pyridinecarboxamide

CAS: 133627-46-0
Formula: C₁₂H₉Cl₂N₃O
MW: 282.12 g/mol

ZX-030808

N-(2-Chloro-4-methylpyridin-3-yl)-2-(cyclopropylamino)nicotinamide

CAS: 133627-47-1
Formula: C₁₅H₁₅ClN₄O
MW: 302.76 g/mol

ZX-030807

Nevirapine

CAS: 129618-40-2
Formula: C₁₅H₁₄N₄O
MW: 266.3 g/mol

ZX-022259

Nevirapine EP Impurity A

CAS: 133627-17-5
Formula: C₁₄H₁₄N₄O
MW: 254.29 g/mol

ZX-022261

Nevirapine EP Impurity B

CAS: 287980-84-1
Formula: C₁₂H₁₀N₄O
MW: 226.23 g/mol

ZX-022260

Nevirapine EP Impurity C

CAS: 287980-85-2
Formula: C₁₅H₁₆N₄O
MW: 268.31 g/mol

ZX-025805

Nevirapine EP Impurity D (Free Base)

CAS: 1391054-30-0
Formula: C₃₀H₂₆N₈O₂
MW: 530.6 g/mol

ZX-025806

Nevirapine Hemihydrate

CAS: 220988-26-1
Formula: C₃₀H₃₀N₈O₃
MW: 550.6 g/mol

ZX-044594

Nevirapine-12-(n-proylidenyl)

CAS: 284686-27-7
Formula: C₁₈H₁₈N₄O
MW: 306.4 g/mol

ZX-030806

Nevirapine-d3

CAS: 1051419-24-9
Formula: C₁₅H₁₄N₄O
MW: 269.32 g/mol

ZX-030810

Nevirapine-d4

CAS: 1051418-95-1
Formula: C₁₅H₁₄N₄O
MW: 270.32 g/mol

ZX-030809

Questions

Nevirapine impurities, answered

What Nevirapine reference materials are available?

The catalogue currently lists 11 compounds for Nevirapine, including 4 pharmacopoeial impurities and 2 isotope-labelled standards. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.

What documents come with a Nevirapine impurity standard?

A certificate of analysis travels with every lot. On request we share the characterisation set, usually 1H-NMR, mass spectrum, HPLC purity and IR, and for some materials TGA or water content. Ask for the data before ordering if your QA team needs to review it.

Can Zemixal make a Nevirapine impurity that is not listed?

Often yes. Send the structure, name or CAS number with the quantity you need and our sourcing team checks custom synthesis options, usually from 10 mg up to gram scale, with a quoted lead time.

Are isotope-labelled Nevirapine standards available?

Yes. 2 stable-isotope labelled compounds are listed, suitable as internal standards for LC-MS bioanalysis and trace impurity quantitation.