CIRCULIN A
UNII 5EQC2W0FWU

Substance Identification & Data

This profile provides standardized clinical and technical data for Circulin A, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 5EQC2W0FWU.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 1271111-95-5 and the RxNorm Concept ID (RxCUI) N/A. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
5EQC2W0FWU
CAS Registry Number
1271111-95-5
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
CIRCULIN A
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C53H100N16O13
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
CQLCVUOURZVYSE-DWPOUDBJSA-N
Line notation for describing the chemical structure and connectivity of atoms.
PubChem CID
124220553
Unique identification number in the NCBI database of chemical substances.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
N(C([C@@H](NC([C@@H](NC(=O)[C@@H](NC(CCCC[C@H](CC)C)=O)CCN)[C@@H](C)O)=O)CCN)=O)[C@@]1(C(=O)N[C@@H](CCN)C(=O)N[C@H](CC(C)C)C(=O)N[C@@]([C@H](CC)C)(C(=O)N[C@H](C(N[C@H](C(N[C@](C(NCC1)=O)([C@@H](C)O)[H])=O)CCN)=O)CCN)[H])[H]

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Circulin A. Identifiers are organized into official regulatory terms, commercial trade names, and technical systematic synonyms used to ensure accurate identification across clinical pharmaceutical databases, regulatory filings, and electronic health records.

Common Names & Synonyms

7-ISOLEUCINE-POLYMYXIN E1
7-L-ISOLEUCINEPOLYMYXIN E1
CIRCULIN A
CIRCULIN A (BACILLUS CIRCULANS)
COLISTIN III

Systematic Nomenclature

(2S)-4-AMINO-2-(((6S)-6-METHYL-1-OXOOCTYL)AMINO)BUTANOYL-L-THREONYL-(2S)-2,4-DIAMINOBUTANOYL-(2S)-2,4-DIAMINOBUTANOYL-(2S)-2,4-DIAMINOBUTANOYL-D-LEUCYL-L-ISOLEUCYL-(2S)-2,4-DIAMINOBUTANOYL-(2S)-2,4-DIAMINOBUTANOYL-L-THREONINE (10->4)-LACTAM

External Clinical & Regulatory Resources

CAS
Common Chemistry
NCATS
Inxight Drugs
NLM
DailyMed Products
NCATS
GSRS Full Record
NLM
PubChem Compound