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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
Clopidogrel N-Oxide chemical structure
Clopidogrel N-Oxide
CAS
1319197-71-1
Formula
C16H16ClNO3S
MW
337.8 g/mol
VQ-029899
Reference Standard
Clopidol chemical structure
Clopidol
CAS
2971-90-6
Formula
C7H7Cl2NO
MW
192.04 g/mol
VQ-040908
Reference Standard
Cloprostenol chemical structure
Cloprostenol
CAS
40665-92-7
Formula
C22H29ClO6
MW
424.9 g/mol
VQ-047855
Reference Standard
Cloquintocet chemical structure
Cloquintocet
CAS
88349-88-6
Formula
C11H8ClNO3
MW
237.64 g/mol
VQ-040673
Reference Standard
Clorsulon chemical structure
Clorsulon
CAS
60200-06-8
Formula
C8H8Cl3N3O4S2
MW
380.7 g/mol
VQ-029904
Reference Standard
Clorsulon-13C6 chemical structure
Clorsulon-13C6
CAS
1325559-24-7
Formula
C13H10Cl2N2O5
MW
351.09 g/mol
VQ-047856
IP/BP/USP
Closantel chemical structure
Closantel
CAS
61438-64-0
Formula
C22H13Cl2I2N2NaO2
MW
685.1 g/mol
VQ-003964
Reference Standard
Closantel chemical structure
Closantel
CAS
57808-65-8
Formula
C22H14Cl2I2N2O2
MW
663.1 g/mol
VQ-029905

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.