FK506-A
UNII Y8RY7CLE8L

Substance Identification & Data

This profile provides standardized clinical and technical data for Fk506-a, uniquely identified by the FDA Unique Ingredient Identifier (UNII) Y8RY7CLE8L.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 131944-48-4 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

Y8RY7CLE8L

CAS Registry Number

131944-48-4

RxNorm Concept ID

N/A

Detailed Substance Profile

Preferred Name

FK506-A

Official standardized name for this substance within the FDA UNII nomenclature system.

InChIKey

C44H69NO12

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

CISNOWSTVWQKDD-JYBSSGHFSA-N

Line notation for describing the chemical structure and connectivity of atoms.

PubChem CID

14846170

Unique identification number in the NCBI database of chemical substances.

Substance Type

chemical

ISO 11238 classification category (e.g., Chemical, Polymer, Protein).

Ingredient Role

O(C)[C@@H]1[C@@]2(O[C@](O)([C@H](C)C1)C(=O)C(=O)N3[C@](C(=O)O[C@@](\C(\C)=C\[C@H](C)[C@@H](O)CC(=O)[C@H](CC=C)/C=C(\C)/C[C@H](C)C[C@@H]2OC)([C@]4(C[C@@H](OC)[C@H](O)CC4)[H])[H])(CCCC3)[H])[H]

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Fk506-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

TACROLIMUS IMPURITY 2

Systematic Nomenclature

17,21-EPOXY-3H-PYRIDO(2,1-C)(1,4)OXAAZACYCLOPENTACOSINE-1,9,22,23(6H,25H)-TETRONE, 7,8,10,13,14,15,16,17,18,19,20,21,26,27,28,28A-HEXADECAHYDRO-7,21-DIHYDROXY-3-(4-HYDROXY-3-METHOXYCYCLOHEXYL)-16,18-DIMETHOXY-4,6,12,14,20-PENTAMETHYL-10-(2-PROPENYL)-, (3R-(3R*(1R*,3R*,4R*),4E,6S*,7S*,10R*,11E,14S*,16S*,17R*,18S*,20R*,21R*,28AS*))-

SYS

Technical Codes

FK506-A

External Clinical & Regulatory Resources

Previous UNIIY8RKZ6AXB4

Next UNIIY8S6SN4QN0