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VAQORACHEMICALS
Impurity reference standards

Calcitriol impurities & reference standards

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

13reference materials
1isotope-labelled
COAHPLC · NMR · MS on request
Reference Standard
22Z-Paricalcitol chemical structure
22Z-Paricalcitol
CAS
1884139-61-0
Formula
C27H44O3
MW
416.6 g/mol
VQ-021304
Reference Standard
24-Homo Calcitriol chemical structure
24-Homo Calcitriol
CAS
103656-40-2
Formula
C28H46O3
MW
430.7 g/mol
VQ-036087
Reference Standard
Calcitriol Lactone chemical structure
Calcitriol Lactone
CAS
81203-50-1
Formula
C27H40O5
MW
444.6 g/mol
VQ-021960
Reference Standard
Calcitriol-d6 chemical structure
Calcitriol-d6
CAS
78782-99-7
Formula
C27H44O3
MW
422.7 g/mol
VQ-029588
Reference Standard
Calcitroic Acid chemical structure
Calcitroic Acid
CAS
71204-89-2
Formula
C23H34O4
MW
374.5 g/mol
VQ-024727
Reference Standard
Maxacalcitol chemical structure
Maxacalcitol
CAS
103909-75-7
Formula
C26H42O4
MW
418.6 g/mol
VQ-038263

FAQs — Calcitriol impurities

Which Calcitriol impurities do you supply?

We list 13 Calcitriol-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 Calcitriol 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 Calcitriol 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 Calcitriol impurity standards

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

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