Cresol red
Agent Name
Cresol red
CAS Number
1733-12-6
Formula
C21-H18-O5-S
Major Category
Dyes
Synonyms
3',3''-Dimethylphenolsulfonephthalein; Cresol Red; Cresolsulfophthalein; o-Cresol Red; o-Cresolsulfonephthalein; Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-methyl-; Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2-methyl-, S,S-dioxide (9CI); o-Cresol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)di-, S,S-dioxide (8CI); [ChemIDplus]
Category
Indicator Dyes
Description
Reddish-brown solid; [Merck Index] Reddish-brown or green odorless solid; [CHEMINFO] Crystalline solid; [MSDSonline]
Sources/Uses
Used as acid-base indicator; [Merck Index] Color changes to red-yellow (pH 0.5-2.5) and orange-purple (pH 6.5-8.5); [Ullmann]
Comments
May cause irritation; [MSDSonline]
Biomedical References
Exposure Assessment
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.