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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
Chlorthalidone USP chemical structure
Chlorthalidone USP
CAS
77-36-1
Formula
C14H11ClN2O4S
MW
338.8 g/mol
In stock
Reference Standard
Chlorthalidone-d4 chemical structure
Chlorthalidone-d4
CAS
1794941-44-8
Formula
C14H11ClN2O4S
MW
342.8 g/mol
VQ-029765
Reference Standard
Chlorthion chemical structure
Chlorthion
CAS
500-28-7
Formula
C8H9ClNO5PS
MW
297.65 g/mol
VQ-045187
IP/BP/USP
Chlorzoxazone chemical structure
Chlorzoxazone
CAS
95-25-0
Formula
C7H4ClNO2
MW
169.56 g/mol
VQ-003996
Reference Standard
Chlorzoxazone WS chemical structure
Chlorzoxazone WS
CAS
95-25-0
Formula
C7H4ClNO2
MW
169.56 g/mol
In stock
Reference Standard
Chlorzoxazone-d3 chemical structure
Chlorzoxazone-d3
CAS
1185173-60-7
Formula
C7H4ClNO2
MW
172.58 g/mol
VQ-029769
Cholestenone chemical structure
Cholestenone
CAS
601-57-0
Formula
C27H44O
MW
384.6 g/mol
VQ-047780
Reference Standard
Cholesterol chemical structure
Cholesterol
CAS
57-88-5
Formula
C27H46O
MW
386.7 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.