Agent Name

Alizarine Yellow R

CAS Number

2243-76-7

Formula

C13-H9-N3-O5

Major Category

Dyes

Synonyms

2-Hydroxy-5-((4-nitrophenyl)azo)benzoic acid; Acid Alizarin Yellow R; Alizarine Chrome Orange G; Alizarine Orange 2GN; Alizarine Orange R; Alizarine Orange RD; Alizarine Yellow P; Alizarine Yellow R (indicator); Alizarine Yellow R-CF; Alizarine Yellow RW; Alizarol Orange R; Alphacroic Orange R; Anthranol Chrome Yellow R; Azochromal Orange R; Benzoic acid, 2-hydroxy-5-((4-nitrophenyl)azo)-; Brasilian Chrome Orange R; C.I. 14030; C.I. Mordant Orange 1; Calcochrome Orange R; Chromacid Orange S; Chrome Fast Orange RW; Chrome Orange MR; Chrome Orange N; Chrome Orange R; Chrome Orange RLE; Chrome Yellow 3RN; Chromol Orange R Extra; Diamond Chrome Yellow 3R; Durochrome Yellow 2RN; Eniacromo Orange R; Eriochrome Orange AOR; Fenakrom Orange R; Hidachrome Orange R; Hispacrom Orange R; Java Chrome Yellow 3R; Java Unichrome Yellow 3R; KCA Chrome Orange R; Kenachrome Orange; Lighthouse Chrome Orange; Magracrom Orange; Metachrome Orange R; Mitsui Chrome Orange AN; Mitsui Chrome Orange A; Monochrome Orange R; Monochrome Yellow 3R; Orthochrome Orange R; Peerachrome Yellow R; PNBAS; Pontachrome Yellow 3RN; Solochrome Orange M; Synchromate Orange AOR; Terra Cotta RRN; Terracotta 2RN; Tertrochrome Yellow 3R; Yodochrome Orange A; para-Nitrobenzeneazosalicylic acid; 5-(p-Nitrophenylazo)salicylic acid; Benzoic acid, 2-hydroxy-5-((4-nitrophenyl)azo)-; Salicylic acid, 5-((p-nitrophenyl)azo)-; [ChemIDplus] p-Nitrobenzeneazosalicylic acid; [Merck Index] Mordant Orange 1; 5-(4-Nitrophenylazo)salicylic acid; [Sigma-Aldrich MSDS]

Category

Azo Dyes

Description

Orange-brown solid; [Merck Index] Dark brown solid; [Sigma-Aldrich MSDS]

Sources/Uses

Sodium salt is used as a pH indicator; [Merck Index]

Comments

A moderate eye irritant; Harmful by ingestion; [Sigma-Aldrich MSDS] See "Alizarine Yellow G."

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