Rifaximin Impurity 1

Name: Rifaximin Impurity 1
Brand: Vaqora Chemicals
SKU: VQ-033540

About Rifaximin Impurity 1

Vaqora Chemicals supplies Rifaximin Impurity 1, an impurity of Rifaximin registered under CAS number 1351775-04-6. The compound has the formula C43H49N3O11, corresponding to a molecular weight of 783.9 g/mol. Common synonyms include Rifaximin Impurity 2.

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. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Pharmaceutical QC and development laboratories use this impurity standard of Rifaximin to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Rifaximin Impurity 1 is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Rifaximin

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

Rifaximin impurities

Specifications & identifiers

Chemical identifiers
Product name	Rifaximin Impurity 1
Catalogue No.	VQ-033540
CAS Number	1351775-04-6
IUPAC name	[(7S,9E,11S,12R,13S,14R,15R,16R,17S,18S,19E,21Z)-15,17,36-trihydroxy-11-methoxy-3,7,12,14,16,18,22-heptamethyl-30-methylidene-2,6,23-trioxo-8,37-dioxa-24,27,33-triazahexacyclo[23.10.1.14,7.05,35.026,34.027,32]heptatriaconta-1(36),3,5(35),9,19,21,24,26(34),28,31-decaen-13-yl] acetate
Molecular formula	C₄₃H₄₉N₃O₁₁
Molecular weight	783.9 g/mol
Exact mass	783.3367
Grade	Reference Standard
HSN code	38229090
InChIKey	AKJHOMQWQPCXMR-GEOWOUTJSA-N
SMILES	C[C@H]1/C=C/C=C(\C(=O)N=C2C3=C(C4=C5C(=C(C(=O)C4=C2O)C)O[C@@](C5=O)(O/C=C/[C@@H]([C@H]([C@H]([C@@H]([C@@H]([C@@H]([C@H]1O)C)O)C)OC(=O)C)C)OC)C)NC6=CC(=C)C=CN63)/C
PubChem CID	177857543

Physical properties
Physical form	Solid
LogP (XLogP3)	5.1
H-bond donors / acceptors	4 / 13
TPSA	194 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 Impurity 1?

The CAS Registry Number of Rifaximin Impurity 1 is 1351775-04-6. It is also known as Rifaximin Impurity 2.

What is the molecular formula and molecular weight of Rifaximin Impurity 1?

Rifaximin Impurity 1 has the molecular formula C43H49N3O11 and a molecular weight of 783.9 g/mol.

What is Rifaximin Impurity 1 used for?

Rifaximin Impurity 1 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 Impurity 1 can I order?

We supply Rifaximin Impurity 1 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 Impurity 1?

Yes. Every lot of Rifaximin Impurity 1 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 Impurity 1 be shipped internationally?

Yes. We export Rifaximin Impurity 1 worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.