CAS号:596-27-0
品名:邻甲酚酞o-Cresolphthalein
中文别名:3,3-双(4-羟基-3-甲基苯基)-(3H)-异苯并呋喃酮;3,3-双(4-羟基-3-甲基苯基)-1(3H)-异苯并呋喃酮;2-甲酚酞,3,3′-二甲基酚酞;3,3'-二甲酚酞;3,3'-二甲基酚酞;邻甲酚呋酞;2-甲酚酞;
英文别名:3,3-bis(4-hydroxy-3-methylphenyl)-2-benzofuran-1-one;1(3H)-Isobenzofuranone,3,3-bis(4-hydroxy-3-methylphenyl)-;
分子式:C22H18O4
分子量:346.376
精确质量:346.121
Psa:66.76
RTECS号:SM8390000
MDL号:MFCD00005912
外观与性状:白色至米色结晶粉末
密度:1.32g/cm3
沸点:555ºC at 760mmHg
熔点:223-225 °C
闪点:198.8ºC
折射率:1.668
稳定性:Stable under normal temperatures and pressures.
储存条件:Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
安全说明:S36/37
危险类别码:R40
海关编码:2932209090
危险品标志:Xn
简介:o-CresolphthaleinisapHindicatorusedintitrations.Itisinsolubleinwaterbutsolubleinethanol.ItssolutioniscolourlessbelowpH8.2,andpurpleabove9.8.
用途:1.酸碱指示剂,变色范围pH8.2(无色)-9.8(红色)。还用于合成其他指示剂。
滴定