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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
Metoprolol Fumarate chemical structure
Metoprolol Fumarate
CAS
119637-66-0
Formula
C34H54N2O10
MW
650.8 g/mol
VQ-049096
Reference Standard
Metoprolol Tartrate chemical structure
Metoprolol Tartrate
CAS
56392-17-7
Formula
C34H56N2O12
MW
684.8 g/mol
VQ-007581
Reference Standard
Metoprolol-d5 chemical structure
Metoprolol-d5
CAS
959786-79-9
Formula
C15H25NO3
MW
272.39 g/mol
VQ-031859
Reference Standard
Metoprolol-d7 chemical structure
Metoprolol-d7
CAS
959787-96-3
Formula
C15H25NO3
MW
274.41 g/mol
VQ-043368
Reference Standard
Metribuzin chemical structure
Metribuzin
CAS
21087-64-9
Formula
C8H14N4OS
MW
214.29 g/mol
VQ-032351
IP/BP/USP
Metronidazole chemical structure
Metronidazole
CAS
443-48-1
Formula
C6H9N3O3
MW
171.15 g/mol
VQ-003933
Metronidazole chemical structure
Metronidazole
CAS
443-48-1
Formula
C6H9N3O3
MW
171.15 g/mol
VQ-045704
Reference Standard
Metronidazole-d3 chemical structure
Metronidazole-d3
CAS
83413-09-6
Formula
C6H9N3O3
MW
174.17 g/mol
VQ-031863
Reference Standard
Metronidazole-d4 chemical structure
Metronidazole-d4
CAS
1261392-47-5
Formula
C6H9N3O3
MW
175.18 g/mol
VQ-031861
Reference Standard
Mexiletine chemical structure
Mexiletine
CAS
31828-71-4
Formula
C11H17NO
MW
179.26 g/mol
VQ-031867

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.