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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

IP/BP/USP
Rifampicin chemical structure
Rifampicin
CAS
13292-46-1
Formula
C43H58N4O12
MW
822.9 g/mol
VQ-003942
Reference Standard
Rifampicin N-Oxide chemical structure
Rifampicin N-Oxide
CAS
125833-03-6
Formula
C43H58N4O13
MW
838.9 g/mol
VQ-027804
Reference Standard
Rifampicin N-oxide chemical structure
Rifampicin N-oxide
CAS
51963-55-4
Formula
C43H58N4O13
MW
838.9 g/mol
VQ-041902
Reference Standard
Rifampicin Quinone chemical structure
Rifampicin Quinone
CAS
13983-13-6
Formula
C43H56N4O12
MW
820.9 g/mol
VQ-027805
Reference Standard
Rifampicin-d3 chemical structure
Rifampicin-d3
CAS
1262052-36-7
Formula
C43H58N4O12
MW
826 g/mol
VQ-041898
Reference Standard
Rifamycin chemical structure
Rifamycin
CAS
6998-60-3
Formula
C37H47NO12
MW
697.8 g/mol
VQ-033538
Reference Standard
Rifamycin B chemical structure
Rifamycin B
CAS
13929-35-6
Formula
C39H49NO14
MW
755.8 g/mol
VQ-027813
Reference Standard
Rifamycin O chemical structure
Rifamycin O
CAS
14487-05-9
Formula
C39H47NO14
MW
753.8 g/mol
VQ-027816
Reference Standard
Rifamycin R chemical structure
Rifamycin R
CAS
59264-04-9
Formula
C37H45NO13
MW
711.8 g/mol
VQ-041896
Reference Standard
Rifamycin S chemical structure
Rifamycin S
CAS
13553-79-2
Formula
C37H45NO12
MW
695.8 g/mol
VQ-027807
Reference Standard
Rifamycin Y chemical structure
Rifamycin Y
CAS
15271-73-5
Formula
C39H47NO15
MW
769.8 g/mol
VQ-027811
Reference Standard
Rifaximin chemical structure
Rifaximin
CAS
80621-81-4
Formula
C43H51N3O11
MW
785.9 g/mol
In stock
Reference Standard
Rifaximin-d6 chemical structure
Rifaximin-d6
CAS
1262992-43-7
Formula
C43H51N3O11
MW
791.9 g/mol
VQ-041903
Reference Standard
Rilmenidine chemical structure
Rilmenidine
CAS
54187-04-1
Formula
C10H16N2O
MW
180.25 g/mol
VQ-033541

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.