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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
Topiramate WS chemical structure
Topiramate WS
CAS
97240-79-4
Formula
C12H21NO8S
MW
339.36 g/mol
In stock
Reference Standard
Topiramate-d12 chemical structure
Topiramate-d12
CAS
1279037-95-4
Formula
C12H21NO8S
MW
351.44 g/mol
VQ-042611
Reference Standard
Topiroxostat chemical structure
Topiroxostat
CAS
577778-58-6
Formula
C13H8N6
MW
248.24 g/mol
VQ-034362
IP/BP/USP
Topotecan chemical structure
Topotecan
CAS
123948-87-8
Formula
C23H23N3O5
MW
421.4 g/mol
VQ-004221
Reference Standard
Topovale chemical structure
Topovale
CAS
500214-53-9
Formula
C23H23N3O5
MW
421.4 g/mol
VQ-036105
IP/BP/USP
Torasemide chemical structure
Torasemide
CAS
56211-40-6
Formula
C16H20N4O3S
MW
348.4 g/mol
VQ-004111
Reference Standard
Torasemide chemical structure
Torasemide
CAS
56211-40-6
Formula
C16H20N4O3S
MW
348.4 g/mol
In stock
Reference Standard
Toremifene N-Oxide chemical structure
Toremifene N-Oxide
CAS
163130-29-8
Formula
C26H28ClNO2
MW
422 g/mol
VQ-042620
Reference Standard
Torsemide N-Oxide chemical structure
Torsemide N-Oxide
CAS
58154-83-9
Formula
C16H20N4O4S
MW
364.4 g/mol
VQ-028469
Reference Standard
Torsemide-d7 chemical structure
Torsemide-d7
CAS
1189375-06-1
Formula
C16H20N4O3S
MW
355.5 g/mol
VQ-042627
Reference Standard
Tovorafenib chemical structure
Tovorafenib
CAS
1096708-71-2
Formula
C17H12Cl2F3N7O2S
MW
506.3 g/mol
In stock

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.