50984-88-8
中文名称
对二甲酚酞
英文名称
P-XYLENOLPHTHALEIN
CAS
50984-88-8
分子式
C24H22O4
分子量
374.43
MOL 文件
50984-88-8.mol
更新日期
2025/11/18 15:16:15
50984-88-8 结构式
基本信息
中文别名
对二甲酚酞间二甲酚酞
2′,5′,2″,5″-四甲基酚酞
英文别名
XylenolphthaleinP-XYLENOLPHTHALEIN
P-xylenolphthaleine
p-xylenolphthalein (pH 9.0-10.5)
3,3-bis(4-hydroxy-2,5-xylyl)phthalide
2',5',2'',5''-TETRAMETHYLPHENOLPHTHALEIN
P-xylenolphthalein, 2′,5′,2″,5″-tetramethylphenolphthalein
3,3-Bis(4-hydroxy-2,5-dimethylphenyl)isobenzofuran-1(3H)-one
3,3-Bis(4-hydroxy-2,5-dimethylphenyl)-1(3H)-isobenzofuranone
3,3-Bis(2,5-dimethyl-4-hydroxyphenyl)isobenzofuran-1(3H)-one
所属类别
生物化工：生物染料物理化学性质
熔点276°C
沸点569.6±50.0 °C(Predicted)
密度1.270±0.06 g/cm3(Predicted)
储存条件Inert atmosphere,Room Temperature
溶解度不溶于水；溶于乙醇、丙酮
酸度系数(pKa)9.7(at 25℃)
形态粉末
颜色淡黄色或奶油色
酸碱指示剂变色ph值范围Colorless (9.0) to indigo-blue (10.5)
BRN346799
主要应用Inks, detergent, photoresist, toothpaste and mouthwash, disinfectant, cosmetics, paints
InChIInChI=1S/C24H22O4/c1-13-11-21(25)15(3)9-19(13)24(20-10-16(4)22(26)12-14(20)2)18-8-6-5-7-17(18)23(27)28-24/h5-12,25-26H,1-4H3
InChIKeyPXCIPOXPHMTCIL-UHFFFAOYSA-N
SMILESC1(=O)C2=C(C=CC=C2)C(C2=CC(C)=C(O)C=C2C)(C2=CC(C)=C(O)C=C2C)O1