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VAQORACHEMICALS
Impurity reference standards

Theophylline impurities & reference standards

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

19reference materials
2isotope-labelled
COAHPLC · NMR · MS on request
Parent API: Theophylline
58-55-9 · C7H8N4O2
View API
Reference Standard
1-Methyl Xanthine chemical structure
1-Methyl Xanthine
CAS
6136-37-4
Formula
C6H6N4O2
MW
166.14 g/mol
VQ-028323
Reference Standard
7-Methyl Xanthine chemical structure
7-Methyl Xanthine
CAS
552-62-5
Formula
C6H6N4O2
MW
166.14 g/mol
VQ-028324
Reference Standard
Acephylline chemical structure
Acephylline
CAS
652-37-9
Formula
C9H10N4O4
MW
238.2 g/mol
VQ-021398
IP/BP/USP
Theophylline chemical structure
Theophylline
CAS
58-55-9
Formula
C7H8N4O2
MW
180.16 g/mol
VQ-004183
Reference Standard
Theophylline chemical structure
Theophylline
CAS
58-55-9
Formula
C7H8N4O2
MW
180.16 g/mol
In stock
Reference Standard
Theophylline-d6 chemical structure
Theophylline-d6
CAS
117490-39-8
Formula
C7H8N4O2
MW
186.2 g/mol
VQ-034187

FAQs — Theophylline impurities

Which Theophylline impurities do you supply?

We list 19 Theophylline-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 Theophylline 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 Theophylline 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 Theophylline impurity standards

We reply within one business day with price, pack options, lead time and documentation.

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