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VAQORACHEMICALS
Impurity reference standards

Acetylcysteine impurities & reference standards

Characterised Acetylcysteine impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.

20reference materials
2isotope-labelled
COAHPLC · NMR · MS on request
Reference Standard
DL-Cystine-D4 chemical structure
DL-Cystine-D4
CAS
108641-83-4
Formula
C6H12N2O4S2
MW
244.3 g/mol
VQ-047318
Reference Standard
Fesoterodine chemical structure
Fesoterodine
CAS
84184-18-9
Formula
C5H7NO2S
MW
145.18 g/mol
VQ-030716
Reference Standard
L-Cysteic Acid chemical structure
L-Cysteic Acid
CAS
498-40-8
Formula
C3H7NO5S
MW
169.16 g/mol
VQ-034927
Reference Standard
S-Acetylcysteine chemical structure
S-Acetylcysteine
CAS
60333-15-5
Formula
C5H9NO3S
MW
163.2 g/mol
VQ-029013

FAQs — Acetylcysteine impurities

Which Acetylcysteine impurities do you supply?

We list 20 Acetylcysteine-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 Acetylcysteine 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 Acetylcysteine 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 Acetylcysteine impurity standards

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