Rifaximin-d6

Name: Rifaximin-d6
Brand: Vaqora Chemicals
SKU: VQ-041903

About Rifaximin-d6

Rifaximin-d6 (CAS 1262992-43-7) is a stable isotope labelled analogue related to Rifaximin offered by Vaqora Chemicals. With the molecular formula C43H51N3O11, it has a molar mass of 791.9 g/mol. It is also known as Rifaximin-d6 (Major).

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Good laboratory practice and suitable PPE are recommended during handling.

This isotope-labelled compound is used as an internal standard for LC-MS and LC-MS/MS quantitation of Rifaximin and related analytes in bioanalytical, pharmacokinetic and impurity studies. It is used across pharmaceutical manufacturing and academic and industrial research.

We offer Rifaximin-d6 in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

LC-MS/MS internal standard
Bioanalytical quantitation
Pharmacokinetic studies

Industries

Related to Rifaximin

View every impurity, metabolite and intermediate we list for Rifaximin.

Rifaximin impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Rifaximin-d6
Catalogue No.	VQ-041903
CAS Number	1262992-43-7
IUPAC name	[(7S,9E,11S,12R,13S,14R,15R,16R,17S,18S,19E,21Z)-28,29,31-trideuterio-2,15,17,36-tetrahydroxy-11-methoxy-3,7,12,14,16,18,22-heptamethyl-6,23-dioxo-30-(trideuteriomethyl)-8,37-dioxa-24,27,33-triazahexacyclo[23.10.1.14,7.05,35.026,34.027,32]heptatriaconta-1(35),2,4,9,19,21,25(36),26(34),28,30,32-undecaen-13-yl] acetate
Molecular formula	C₄₃H₅₁N₃O₁₁
Molecular weight	791.9 g/mol
Exact mass	791.39
Grade	Reference Standard
HSN code	38229090
InChIKey	NZCRJKRKKOLAOJ-JDVCSXHWSA-N
SMILES	[2H]C1=C(N2C3=C(C4=C5C(=C(C6=C4C(=O)[C@](O6)(O/C=C/[C@@H]([C@H]([C@H]([C@@H]([C@@H]([C@@H]([C@H]([C@H](/C=C/C=C(\C(=O)NC3=C5O)/C)C)O)C)O)C)OC(=O)C)C)OC)C)C)O)N=C2C(=C1C([2H])([2H])[2H])[2H])[2H]
PubChem CID	46782887

Physical properties
Physical form	Solid
LogP (XLogP3)	6.9
H-bond donors / acceptors	5 / 12
TPSA	198 Å²

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Rifaximin-d6?

The CAS Registry Number of Rifaximin-d6 is 1262992-43-7. It is also known as Rifaximin-d6 (Major).

What is the molecular formula and molecular weight of Rifaximin-d6?

Rifaximin-d6 has the molecular formula C43H51N3O11 and a molecular weight of 791.9 g/mol.

What is Rifaximin-d6 used for?

Rifaximin-d6 is supplied as a characterised reference material related to Rifaximin. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Rifaximin-d6 can I order?

We supply Rifaximin-d6 in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Rifaximin-d6?

Yes. Every lot of Rifaximin-d6 is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Rifaximin-d6 be shipped internationally?

Yes. We export Rifaximin-d6 worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.