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o-Cresolphthalein
Chemical Name |
o-Cresolphthalein |
Synonyms |
3,3-Bis(4-hydroxy-3-methylphenyl)-1(3H)-isobenzofuranone |
Molecular formula |
C22H18C4 |
CAS No. |
596-27-0 |
EINECS No. |
209-881-8 |
Molecular weight |
346.38 |
Molecular Structure |
|
Details |
Appearance: White or yellow crystalline powder Assay: 95% min Visual transition interval (PH): 8.2(colorless) ---9.8(Red) Solubility in Ethanol Test: pass Solubility: solve in alcohol, aether and acetic acid, solveing in diluent alkali solution submits purple, decline solve in water, nsolve in benzene. Melting point: 223℃ Packing: 25kg/ fibre drum |
Main Application |
PH indicator |
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