Colistin A

Name: Colistin A
Brand: Vaqora Chemicals
SKU: VQ-036438

About Colistin A

Colistin A (CAS 7722-44-3) is a high-purity reference standard of Colistin offered by Vaqora Chemicals. Its molecular formula is C53H100N16O13 and its molecular weight is 1169.5 g/mol. It is also known as Colistin IV or Colistin A sulfate hydrate.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. 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. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Colistin A in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports 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
Catalogue No.	VQ-036438
CAS Number	7722-44-3
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
Molecular formula	C₅₃H₁₀₀N₁₆O₁₃
Molecular weight	1169.5 g/mol
Exact mass	1168.7656
Grade	Reference Standard
HSN code	38229090
InChIKey	XDJYMJULXQKGMM-HHAJOKTESA-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
PubChem CID	24825758

Physical properties
Physical form	Solid
LogP (XLogP3)	-2.8
H-bond donors / acceptors	18 / 18
TPSA	491 Å²
Synonyms	Colistin IV, Colistin A sulfate hydrate, Polymyxin E1 (sulfate), 1,4,7,10,13,16,19-Heptaazacyclotricosane, Polymyxin E1 Sulfate (Colistin A)

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?

The CAS Registry Number of Colistin A is 7722-44-3. It is also known as Colistin IV, Colistin A sulfate hydrate, Polymyxin E1 (sulfate).

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

Colistin A has the molecular formula C53H100N16O13 and a molecular weight of 1169.5 g/mol.

What is Colistin A used for?

Colistin A 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 can I order?

We supply Colistin A 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?

Yes. Every lot of Colistin A 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 be shipped internationally?

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