ORANGE B
UNII RGU455OS50

Substance Identification & Data

This profile provides standardized clinical and technical data for Orange B, uniquely identified by the FDA Unique Ingredient Identifier (UNII) RGU455OS50.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 15139-76-1 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
RGU455OS50
CAS Registry Number
15139-76-1
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
ORANGE B
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C22H16N4O9S2.2Na
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
LLTKITSFUJSOCC-KPOOZVEVSA-L
Line notation for describing the chemical structure and connectivity of atoms.
NCI Thesaurus
National Cancer Institute reference terminology for clinical and research data.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
[Na+].c1ccc2c(ccc(S([O-])(=O)=O)c2c1)/N=N/c3c(n(-c4ccc(cc4)S([O-])(=O)=O)nc3C(=O)OCC)O.[Na+]

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Orange B. 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

C.I. ACID ORANGE 137
CI 19235
DISODIUM SALT OF 1-(4-SULFOPHENYL)-3-ETHYLCARBOXY-4-(4-SULFONAPHTHYLAZO)-5- HYDRO-XYPYRAZOLE
ORANGE B
ORANGE B [MART.]
ORANGE B [MI]

Systematic Nomenclature

1H-PYRAZOLE-3-CARBOXYLIC ACID, 4,5-DIHYDRO-5-OXO-4-(2-(4-SULFO-1-NAPHTHALENYL)DIAZENYL)-1-(4-SULFOPHENYL)-, 3-ETHYL ESTER, SODIUM SALT (1:2)