RIFAMYCIN S
UNII PI53N820JV

Substance Identification & Data

This profile provides standardized clinical and technical data for Rifamycin S, uniquely identified by the FDA Unique Ingredient Identifier (UNII) PI53N820JV.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 13553-79-2 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

PI53N820JV

CAS Registry Number

13553-79-2

RxNorm Concept ID

N/A

Detailed Substance Profile

Preferred Name

RIFAMYCIN S

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

InChIKey

C37H45NO12

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

BTVYFIMKUHNOBZ-ODRIEIDWSA-N

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

PubChem CID

6436726

Unique identification number in the NCBI database of chemical substances.

Substance Type

chemical

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

Ingredient Role

c12c3c4C(C(NC(/C(=C\C=C\[C@H](C)[C@@H]([C@H]([C@H]([C@H]([C@@H]([C@@H]([C@H](/C=C/O[C@@](C1=O)(C)Oc2c(c4O)C)OC)C)OC(=O)C)C)O)C)O)/C)=O)=CC3=O)=O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Rifamycin S. 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

1,4-DIDEOXY-1,4-DIHYDRO-1,4-DIOXORIFAMYCIN

RIFAMYCIN S

RIFAMYCIN S [EP IMPURITY]

RIFAMYCIN S [MI]

RIFAMYCIN SODIUM IMPURITY B [EP IMPURITY]

RIFAXIMIN IMPURITY E [EP IMPURITY]

Systematic Nomenclature

((2S,12Z,14E,16S,17S,18R,19R,20R,21S,22R,23S,24E)-5,17,19-TRIHYDROXY-23-METHOXY-2,4,12,16,18,20,22-HEPTAMETHYL-1,6,9,11-TETRAOXO-1,2-DIHYDRO-2,7-(EPOXYPENTADECA(1,11,13)TRIENAZANO)NAPHTHO(2,1-B)FURAN-21-YL ACETATE

SYS

Technical Codes

NSC-144130

External Clinical & Regulatory Resources

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