Impurity reference standards
Terephthalic acid impurities & reference standards
Characterised Terephthalic acid impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.
5reference materials
1isotope-labelled
COAHPLC · NMR · MS on request
O,O'-Butane-1,4-diyl bis(4-hydroxybutyl) diterephthalate
- CAS
- 29278-67-9
- Formula
- C28H34O10
- MW
- 530.6 g/mol
VQ-028289
FAQs — Terephthalic acid impurities
Which Terephthalic acid impurities do you supply?
We list 5 Terephthalic acid-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 Terephthalic acid 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 Terephthalic acid 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 Terephthalic acid impurity standards
We reply within one business day with price, pack options, lead time and documentation.