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VAQORACHEMICALS
Industry

Chemicals for Pharmaceuticals

APIs, intermediates, impurity standards, excipient-grade materials and analytical solvents for drug manufacturers and QC labs.

Products for Pharmaceuticals

Reference Standard
Regorafenib N-Oxide chemical structure
Regorafenib N-Oxide
CAS
835621-11-9
Formula
C21H15ClF4N4O4
MW
498.8 g/mol
In stock
Reference Standard
Regorafenib-13C-D3 chemical structure
Regorafenib-13C-D3
CAS
2126178-55-8
Formula
C21H15ClF4N4O3
MW
486.8 g/mol
VQ-041858
Reference Standard
Regorafenib-d3 chemical structure
Regorafenib-d3
CAS
1255386-16-3
Formula
C21H15ClF4N4O3
MW
485.8 g/mol
VQ-033485
Reference Standard
Rehmaionoside A chemical structure
Rehmaionoside A
CAS
104112-06-3
Formula
C19H34O8
MW
390.5 g/mol
VQ-030579
Reference Standard
Rehmaionoside B chemical structure
Rehmaionoside B
CAS
104056-83-9
Formula
C19H34O8
MW
390.5 g/mol
VQ-030580

FAQs

Do you supply both APIs and the impurity standards needed to test them?

Yes. Many buyers source an API and its related impurity or working standards together, which simplifies qualification. Availability of specific standards is confirmed per molecule.

Can you provide DMF or CEP support for APIs?

Where the manufacturing site holds a DMF, CEP or similar filing, a letter of access or copy can usually be arranged. We confirm this per product before quoting.

Are your solvents suitable for pharmaceutical QC?

HPLC, LC-MS and GC headspace grades are available with specifications suited to pharmacopoeial methods, and each batch ships with a COA and GHS SDS.

Which Incoterms do you offer to pharmaceutical buyers?

We offer EXW, FOB, CFR, CIF and DAP. Temperature-sensitive or small-quantity items usually move by air, while bulk APIs and solvents often move by sea.

Need a price, a spec or a custom compound?

Send us your list — product names or CAS numbers, grade, quantity and destination. Our team replies with a formal quotation, COA and lead time.