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Shenyang Joinunion Chemical Technology Co.,Ltd.
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o-Cresolphthalein CAS No.: 596-27-0
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Synonyms: 3,3-Bis (4-hydroxy-3-methyl phenyl)-1-(3H)-iso-benzofuranone; Di-o-cresol phthalide; 3´-Dimethylphenolphthalein; OCP.
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Molecular formula: C22H18O4
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Molecular weight: 346.38
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Property : Colorless crystal or white, light yellow powder. Solubility in ethanol, less solubility in water.. mp 223C. λ max 566 (381)nm.
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Range of PH: 8.2 ~ 9.8 (from colorless to red)
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Main use: acid-base indicator.
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Solubility test in ethanol: pass
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