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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
Sulfadimethoxine chemical structure
Sulfadimethoxine
CAS
122-11-2
Formula
C12H14N4O4S
MW
310.33 g/mol
VQ-028139
Reference Standard
Sulfadimethoxine-d4 chemical structure
Sulfadimethoxine-d4
CAS
1020719-80-5
Formula
C12H14N4O4S
MW
314.36 g/mol
VQ-042297
Reference Standard
Sulfadimethoxine-d6 chemical structure
Sulfadimethoxine-d6
CAS
73068-02-7
Formula
C12H14N4O4S
MW
316.37 g/mol
VQ-042296
IP/BP/USP
Sulfadoxine chemical structure
Sulfadoxine
CAS
2447-57-6
Formula
C12H14N4O4S
MW
310.33 g/mol
VQ-003948
Reference Standard
Sulfadoxine-d3 chemical structure
Sulfadoxine-d3
CAS
1262770-70-6
Formula
C12H14N4O4S
MW
313.35 g/mol
VQ-042298
Reference Standard
Sulfadoxine-d4 chemical structure
Sulfadoxine-d4
CAS
1330266-05-1
Formula
C12H14N4O4S
MW
314.36 g/mol
VQ-042299
Sulfaguanidine chemical structure
Sulfaguanidine
CAS
57-67-0
Formula
C7H10N4O2S
MW
214.25 g/mol
VQ-019532
Reference Standard
Sulfameter chemical structure
Sulfameter
CAS
651-06-9
Formula
C11H12N4O3S
MW
280.31 g/mol
VQ-039876
Reference Standard
Sulfamethazine-d4 chemical structure
Sulfamethazine-d4
CAS
1020719-82-7
Formula
C12H14N4O2S
MW
282.36 g/mol
VQ-042303
Reference Standard
Sulfamethizole chemical structure
Sulfamethizole
CAS
144-82-1
Formula
C9H10N4O2S2
MW
270.3 g/mol
VQ-033978

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.