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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
Daprodustat chemical structure
Daprodustat
CAS
960539-70-2
Formula
C19H27N3O6
MW
393.4 g/mol
VQ-025185
Reference Standard
Dapsone chemical structure
Dapsone
CAS
80-08-0
Formula
C12H12N2O2S
MW
248.3 g/mol
In stock
Reference Standard
Dapsone Azoxy Dimer chemical structure
Dapsone Azoxy Dimer
CAS
35040-12-1
Formula
C24H20N4O5S2
MW
508.6 g/mol
VQ-047940
Reference Standard
Dapsone Impurity 35 chemical structure
Dapsone Impurity 35
CAS
69391-11-3
Formula
C12H12N2O4S2
MW
312.4 g/mol
VQ-047939
Reference Standard
Dapsone-13C12 chemical structure
Dapsone-13C12
CAS
1632119-29-9
Formula
C12H12N2O2S
MW
260.22 g/mol
VQ-047941
Reference Standard
Dapsone-d4 chemical structure
Dapsone-d4
CAS
1346602-12-7
Formula
C12H12N2O2S
MW
252.33 g/mol
VQ-030045
Reference Standard
Dapsone-d8 chemical structure
Dapsone-d8
CAS
557794-38-4
Formula
C12H12N2O2S
MW
256.35 g/mol
VQ-030044
Daptad chemical structure
Daptad
CAS
111256-83-8
Formula
C10H10N4O2
MW
218.21 g/mol
VQ-052303
Reference Standard
Daridorexant chemical structure
Daridorexant
CAS
1505484-82-1
Formula
C23H23ClN6O2
MW
450.9 g/mol
VQ-030047
Reference Standard
Darifenacin chemical structure
Darifenacin
CAS
133099-04-4
Formula
C28H30N2O2
MW
426.5 g/mol
VQ-030048

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.