Safety Reference
Warning
H302Harmful if swallowed
H319Causes serious eye irritation
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Acid Yellow 151
acid dye for textiles
4,4'-bis(dimethylamino)thiobenzophenone
Thioketone dye intermediate
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Methyl orange is a synthetic azo dye commonly used as a pH indicator in acid-base titrations, where it exhibits a distinct color change from red in acidic conditions to yellow in alkaline conditions.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
4-[(5-amino-3-methyl-1-phenylpyrazol-4-yl)diazenyl]-2,5-dichlorobenzenesulfonic acid
QHVBDWZOQBMLLW-UHFFFAOYSA-N
CC1=NN(C(=C1N=NC2=CC(=C(C=C2Cl)S(=O)(=O)O)Cl)N)C3=CC=CC=C3