Agent Name

3-Cresol purple

CAS Number

2303-01-7

Formula

C21-H18-O5-S

Major Category

Dyes

Synonyms

Cresol purple; m-Cresol Purple; m-Cresolsulfonephthalein; Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(3-methyl-; Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(3-methyl-, S,S-dioxide (9CI); m-Cresol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)di-, S,S-dioxide (8CI); [ChemIDplus]

Category

Indicator Dyes

Description

Powder; [Alfa Aesar MSDS]

Sources/Uses

Used as an acid-base indicator; [Merck Index]

Comments

May cause irritation; [Alfa Aesar MSDS]

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Chemical Information

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