o-Cresolphthalein/3,3′-Dimethylphenolphthalein
Item No.： SR0128
Store at： RT
English Name: o-cresolphthalein; 3,3′-Dimethylphenolphthalein； 3,3-Bis(4-hydroxy-3methylphenyl)-1-(3H)-isobenzofuranone
Other names: o-cresol furaphthalein; 2-methylphenolphthalein, 3,3 '- dimethylphenolphthalein; 3,3-bis (4-hydroxy-3-methylphenyl) - 1 (3H) - isobenzofuranone; O-toluene phenolphthalein; 3,3 '- dimethylphenolphthalein; O-cresol phthalide
CAS No.: 596-27-0
C22H18O4=346.38
Grade: ind
PH discoloration range: 8.2 (colorless) ～ 9.8 (red)
Infrared spectrum identification: match with the reference substance
Physicochemical Properties: white or yellow crystalline powder. Soluble in ethanol, ether and glacial acetic acid, soluble in dilute alkali solution, purple, slightly soluble in water, insoluble in benzene. Melting point 223 ℃. Maximum absorption wavelength 566 (381) NM
Purpose: biochemical research. Acid base indicator
Save: RT
