Rifaximin Impurity 2

Name: Rifaximin Impurity 2
Brand: Vaqora Chemicals
SKU: VQ-027815

About Rifaximin Impurity 2

Rifaximin Impurity 2 is an impurity of Rifaximin carrying the CAS registry number 1351775-03-5. Formula C43H49N3O11, molecular weight 783.9 g/mol. Alternative names: Rifaximin Impurity 1.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

This Rifaximin impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Rifaximin Impurity 2 in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request.

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 2
Catalogue No.	VQ-027815
CAS Number	1351775-03-5
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 2?

The CAS Registry Number of Rifaximin Impurity 2 is 1351775-03-5. It is also known as Rifaximin Impurity 1.

What is the molecular formula and molecular weight of Rifaximin Impurity 2?

Rifaximin Impurity 2 has the molecular formula C43H49N3O11 and a molecular weight of 783.9 g/mol.

What is Rifaximin Impurity 2 used for?

Rifaximin Impurity 2 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 2 can I order?

We supply Rifaximin Impurity 2 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 2?

Yes. Every lot of Rifaximin Impurity 2 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 2 be shipped internationally?

Yes. We export Rifaximin Impurity 2 worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.