(R)-5-Chloro-a-(cyclopropylethynyl)-2-amino-a-(trifluoromethyl) benzenemethanol
- CAS
- 927812-33-7
- Formula
- C13H11ClF3NO
- MW
- 289.68 g/mol
VQ-036896
Impurity reference standards
Efavirenz impurities & reference standards
Characterised Efavirenz impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.
27reference materials
3isotope-labelled
COAHPLC · NMR · MS on request
(S)-N-(4-Chloro-2-(4-cyclopropyl-1,1,1-trifluoro-2-hydroxybut-3-yn-2-yl)phenyl)-4-methoxybenzamide
- CAS
- 353270-77-6
- Formula
- C21H17ClF3NO3
- MW
- 423.8 g/mol
VQ-030390
4-Chloro-2-(trifluoroacetyl)aniline Hydrochloride Hydrate
- CAS
- 173676-59-0
- Formula
- C8H6Cl2F3NO
- MW
- 260.04 g/mol
VQ-048139
Efavirenz Pent-3-ene-1-yne(cis/trans Mixture)
- CAS
- 2125704-30-3
- Formula
- C14H9ClF3NO2
- MW
- 315.67 g/mol
VQ-030387
FAQs — Efavirenz impurities
Which Efavirenz impurities do you supply?
We list 27 Efavirenz-related reference materials, including process impurities, degradation products, stable-isotope-labelled standards and related compounds. Each is supplied with a COA, and characterisation data (HPLC, 1H-NMR, MS, IR) can be provided on request.
What are Efavirenz impurity standards used for?
They are used for analytical method development and validation, impurity identification and quantification, forced-degradation and stability studies, and to support ANDA, DMF and other regulatory submissions under ICH Q3A/Q3B (and ICH M7 for mutagenic impurities).
Can you synthesise a Efavirenz impurity that is not listed?
Yes. Our custom synthesis service can prepare and characterise unlisted impurities, metabolites and labelled analogues from milligram to gram scale. Share the structure or name and required quantity for a quotation.
Request Efavirenz impurity standards
We reply within one business day with price, pack options, lead time and documentation.