EN 
ZH 
RU 
DE 
ES 
KO 
PT 
FR 
TH 
AR 
IT 
VI 
NL 
CAS:596-27-0
MF:C22H18O4
MW:346.38
EINECS:209-881-8
Synonyms:3’,3’’-dimethyl-phenolphthalei; cresolphthalein; Di-o-Cresolphthalide; o-Cresolphalein; o-cresolphtaleine; 3,3-bis(4-hydroxy-3-methylphenyl)-1(3h)-isobenzofuranon
What is O-Cresolphthalein CAS 596-27-0？
O-Cresolphthalein is a white or reddish yellow crystalline powder. O-Cresolphthalein has a melting point of 223 ° C and is soluble in ethanol, ether and glacial acetic acid. O-Cresolphthalein is purple in dilute alkali, slightly soluble in water, and insoluble in benzene.
Specification
| Item | Specification |
| Melting point | 223-225 °C |
| Boiling point | 401.12°C (rough estimate) |
| Density | 1.1425 (rough estimate) |
| Refractive index | 1.4400 (estimate) |
| pKa | 9.40(at 25℃) |
Application
O-Cresolphthalein is used as an acid-base indicator with a discoloration range of pH8.2(colorless) to 9.8(red).
Packaging
25kg/drum or according to customer requirements.
Related keywords
3,3-Bis(4-hydroxy-3-methylphenyl)-1-(3H)-iso-benzofuranone.
