Colistin A sulfate

Name: Colistin A sulfate
Brand: Vaqora Chemicals
SKU: VQ-047867

About Colistin A sulfate

Colistin A sulfate (CAS 207990-63-4) is a high-purity reference standard of Colistin offered by Vaqora Chemicals. Formula C53H102N16O17S, molecular weight 1267.5 g/mol. It is also known as Polymyxin E1 (sulfate).

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.

As a reference sample of Colistin, it is used for identification, assay and impurity-profiling work during analytical method development, validation (AMV) and routine QC. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

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

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Related to Colistin

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

Colistin impurities

Specifications & identifiers

Chemical identifiers
Product name	Colistin A sulfate
Catalogue No.	VQ-047867
CAS Number	207990-63-4
IUPAC name	(6S)-N-[(2S)-4-amino-1-[[(2S,3R)-1-[[(2S)-4-amino-1-oxo-1-[[(3S,6S,9S,12S,15R,18S,21S)-6,9,18-tris(2-aminoethyl)-3-[(1R)-1-hydroxyethyl]-12,15-bis(2-methylpropyl)-2,5,8,11,14,17,20-heptaoxo-1,4,7,10,13,16,19-heptazacyclotricos-21-yl]amino]butan-2-yl]amino]-3-hydroxy-1-oxobutan-2-yl]amino]-1-oxobutan-2-yl]-6-methyloctanamide;sulfuric acid
Molecular formula	C₅₃H₁₀₂N₁₆O₁₇S
Molecular weight	1267.5 g/mol
Exact mass	1266.733
Grade	Reference Standard
HSN code	38229090
InChIKey	ZJIWRHLZXQPFAD-OQPNQKQZSA-N
SMILES	CC[C@H](C)CCCCC(=O)N[C@@H](CCN)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCN)C(=O)N[C@H]1CCNC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@H](NC(=O)[C@@H](NC1=O)CCN)CC(C)C)CC(C)C)CCN)CCN)[C@@H](C)O.OS(=O)(=O)O
PubChem CID	56598289

Physical properties
Physical form	Solid
H-bond donors / acceptors	20 / 22
TPSA	574 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 Colistin A sulfate?

The CAS Registry Number of Colistin A sulfate is 207990-63-4. It is also known as Polymyxin E1 (sulfate).

What is the molecular formula and molecular weight of Colistin A sulfate?

Colistin A sulfate has the molecular formula C53H102N16O17S and a molecular weight of 1267.5 g/mol.

What is Colistin A sulfate used for?

Colistin A sulfate is supplied as a characterised reference material related to Colistin. 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 Colistin A sulfate can I order?

We supply Colistin A sulfate 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 Colistin A sulfate?

Yes. Every lot of Colistin A sulfate 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 Colistin A sulfate be shipped internationally?

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