m-Cresol purple/Cresol Purple

English Name: m-cresol purple; Cresol Purple

Other names: m-cresol violet; M-cresol sulfonphthalein; M-cresol sulfonyl phthalide; 3,3'- dimethylphenolphthalein; Brilliant Cresol violet; Cresol violet; Cresol fixing violet; M-cresol violet

CAS No.: 2303-01-7

C21H18O5S=382.43

Grade: ind

PH discoloration range: pH 1.2 (red) ～ 2.8 (yellow); PH 7.4 (yellow) - 9.0 (red purple)

Ethanol dissolution test: qualified

Physicochemical Properties: brownish green fine crystalline powder. It is easily soluble in ethanol, methanol, glacial acetic acid and alkaline solution, yellow solution in acetic acid, red purple in dilute alkaline solution and ammonia, slightly soluble in water, and insoluble in ether, benzene, chloroform, carbon tetrachloride and ethyl acetate. Maximum absorption wavelength 579 (371) NM

Purpose: biochemical research. Acid base indicator

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