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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
Sildenafil-d3 chemical structure
Sildenafil-d3
CAS
1126745-90-1
Formula
C22H30N6O4S
MW
477.6 g/mol
VQ-033842
Reference Standard
Sildenafil-d8 chemical structure
Sildenafil-d8
CAS
951385-68-5
Formula
C22H30N6O4S
MW
482.6 g/mol
VQ-033843
Reference Standard
Silodosin chemical structure
Silodosin
CAS
160970-54-7
Formula
C25H32F3N3O4
MW
495.5 g/mol
VQ-028026
Reference Standard
Silodosin (S-ISOMER) chemical structure
Silodosin (S-ISOMER)
CAS
2182279-45-2
Formula
C25H32F3N3O4
MW
495.5 g/mol
VQ-021344
Reference Standard
Silodosin N-Oxide chemical structure
Silodosin N-Oxide
CAS
2361272-05-9
Formula
C25H32F3N3O5
MW
511.5 g/mol
VQ-042168
Reference Standard
Silodosin-d4 chemical structure
Silodosin-d4
CAS
1426173-86-5
Formula
C25H32F3N3O4
MW
499.6 g/mol
VQ-033852
Reference Standard
Silodosin-d6 chemical structure
Silodosin-d6
CAS
1051374-52-7
Formula
C25H32F3N3O4
MW
501.6 g/mol
VQ-033853

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.