596-27-0
中文名稱
鄰甲酚酞
英文名稱
o-Cresolphthalein
CAS
596-27-0
EINECS 編號
209-881-8
分子式
C22H18O4
MDL 編號
MFCD00005912
分子量
346.38
MOL 文件
596-27-0.mol
更新日期
2024/10/28 09:15:44
596-27-0 結(jié)構(gòu)式
基本信息
中文別名
3,3-雙(4-羥基-3-甲基苯基)-(3H)-異苯并呋喃酮鄰甲苯酚酞
鄰甲酚酞
鄰甲酚呋酞
3,3'-二甲酚酞
鄰甲酚酜酞
鄰甲苯酚酞
3,3'-二甲基酚酞
3,3-雙(4-羥基-3-甲基苯基)-1(3H)-異苯并呋喃酮
英文別名
3,3'-DIMETHYLPHENOLPHTHALEINLABOTEST-BB LT00451717
O-CRESOLPHTHALEIN
TIMTEC-BB SBB006498
3,3-bis(4-hydroxy-3-methylphenyl)-(3H)-Isobenzofuranone
3,3-bis(4-hydroxy-3-methylphenyl)-1(3h)-isobenzofuranon
3,3-Bis(4-hydroxy-3-methylphenyl)-1-(3H)-iso-benzofuranone
3,3-bis(4-hydroxy-3-methylphenyl)-1(3h)-isobenzofuranone
3’,3’’-dimethyl-phenolphthalei
cresolphthalein
Di-o-Cresolphthalide
o-Cresolphalein
o-cresolphtaleine
3,3-bis(4-hydroxy-m-tolyl)phthalide
o-Cresollphthalein (0.04% in ca. ethanol)
o-Cresolphthalein (0.1% in ca. 90% ethanol)
ortho-cresolphthalein
O-CRESOLPHTHALEIN INDICATOR
ORTHO-CRESOLPHTHALEIN, INDICATOR GRADE
O-Cresolphthaleine(PhIndicator)
所屬類別
生物化工：酸堿指示劑物理化學(xué)性質(zhì)
外觀性狀白色或紅光黃色結(jié)晶粉末。熔點223℃，溶于乙醇、乙醚、冰醋酸，溶于稀堿呈紫色，微溶于水，難溶于苯。
熔點223-225 °C
沸點401.12°C (rough estimate)
密度1.1425 (rough estimate)
折射率1.4400 (estimate)
溶解度微溶于水；溶于乙醇
酸度系數(shù)(pKa)9.40(at 25℃)
形態(tài)粉末
顏色透明無色
酸堿指示劑變色ph值范圍8.2 (colorless) - 9.8 (violet/red)
水溶解性微溶
最大波長(λmax)566nm, 381nm
Merck14,2576
BRN310554
主要應(yīng)用Sensors, display device, photoresists, recording materials, imaging materials, authentication system for secure documents, decoder system, lithium cells, electroplating process, inks, markers, toners, correction fluid, paints, adhesives, floor coatings, gas leaking detector for safety in industries, toys, food storage, diapers, determination of calcium, lotions, urine analysis test strips, drugs, blood analysis
InChIKeyCPBJMKMKNCRKQB-UHFFFAOYSA-N
CAS 數(shù)據(jù)庫596-27-0(CAS DataBase Reference)
EPA化學(xué)物質(zhì)信息1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-3-methylphenyl)- (596-27-0)
安全數(shù)據(jù)
制備方法
方法一
由苯酐與鄰甲苯縮合而得。將苯酐和鄰甲酚混合加熱熔化，在110℃加入無水氯化鋅，并在110-115℃攪拌反應(yīng)12-18h，通入蒸汽趕出剩余的鄰甲酚。將所得粗品氫氧化鈉溶液溶解，過濾。濾液用稀鹽酸中和，得白色結(jié)晶即為成品。