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VAQORACHEMICALS
Impurity reference standards

Erdosteine impurities & reference standards

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

12reference materials
1nitrosamine impurities
COAHPLC · NMR · MS on request
Reference Standard
(R)-Erdosteine chemical structure
(R)-Erdosteine
CAS
160550-67-4
Formula
C8H11NO4S2
MW
249.3 g/mol
VQ-037042
Reference Standard
(S)-Erdosteine chemical structure
(S)-Erdosteine
CAS
159701-33-4
Formula
C8H11NO4S2
MW
249.3 g/mol
VQ-037041
Reference Standard
DL-Homocysteine chemical structure
DL-Homocysteine
CAS
454-29-5
Formula
C4H9NO2S
MW
135.19 g/mol
VQ-031398
Reference Standard
Erdosteine chemical structure
Erdosteine
CAS
84611-23-4
Formula
C8H11NO4S2
MW
249.3 g/mol
VQ-022548
Reference Standard
Erdosteine Thioacid chemical structure
Erdosteine Thioacid
CAS
121213-21-6
Formula
C8H13NO5S2
MW
267.3 g/mol
VQ-025571

FAQs — Erdosteine impurities

Which Erdosteine impurities do you supply?

We list 12 Erdosteine-related reference materials, including process impurities, degradation products, nitrosamine impurities and related compounds. Each is supplied with a COA, and characterisation data (HPLC, 1H-NMR, MS, IR) can be provided on request.

What are Erdosteine 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 Erdosteine 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 Erdosteine impurity standards

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