596-27-0
中文名稱(chēng)
鄰甲酚酞
英文名稱(chēng)
o-Cresolphthalein
CAS
596-27-0
EINECS 編號(hào)
209-881-8
分子式
C22H18O4
MDL 編號(hào)
MFCD00005912
分子量
346.38
MOL 文件
596-27-0.mol
更新日期
2026/07/16 09:35:00
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(lèi)別
生物化工：酸堿指示劑物理化學(xué)性質(zhì)
外觀(guān)性狀白色或紅光黃色結(jié)晶粉末。熔點(diǎn)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(diǎn)223-225 °C
沸點(diǎn)401.12°C (rough estimate)
密度1.1425 (rough estimate)
折射率1.4400 (estimate)
儲(chǔ)存條件room temp
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(wú)色
PH值8.2-9.8, colorless to red
酸堿指示劑變色ph值范圍8.2 (colorless) - 9.8 (violet/red)
水溶解性微溶
ε(消光系數(shù))≥10000 at 294-300nm
≥39000 at 564-570nm
≥5000 at 378-384nm
≥39000 at 564-570nm
≥5000 at 378-384nm
最大波長(zhǎng)(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
InChI1S/C22H18O4/c1-13-11-15(7-9-19(13)23)22(16-8-10-20(24)14(2)12-16)18-6-4-3-5-17(18)21(25)26-22/h3-12,23-24H,1-2H3
InChIKeyCPBJMKMKNCRKQB-UHFFFAOYSA-N
SMILESCc1cc(ccc1O)C2(OC(=O)c3ccccc23)c4ccc(O)c(C)c4
CAS 數(shù)據(jù)庫(kù)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)
警示詞危險(xiǎn)
危險(xiǎn)性描述H225-H319-H335+H336-H340-H360-H372-H373
危險(xiǎn)品標(biāo)志Xn
危險(xiǎn)類(lèi)別碼R40
安全說(shuō)明S36/37
危險(xiǎn)品運(yùn)輸編號(hào)1170
WGK Germany3
RTECS號(hào)SM8390000
TSCAYes
海關(guān)編碼3822.19.0080
存儲(chǔ)類(lèi)別11 - Combustible Solids
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(wú)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(guò)濾。濾液用稀鹽酸中和，得白色結(jié)晶即為成品。