曲酸 Kojic acid

物理描述 Physical Description

Solid

颜色/状态 Color Form

Prismatic needles from acetone, ethanol+ether or methanol+ethyl acetate

熔点 Melting Point

153.5 °C

溶解度 Solubility

In water, 9.35X10+5 mg/L at 25 °C (est)

蒸汽压力 Vapor Pressure

3.21X10-6 mm Hg at 25 °C (est)

解离常数 Dissociation Constants

pKa = 7.66 (approx., at 25 °C)

保留指数 Kovats Retention Index

1192.1;1220.3

其他实验性质 Other Experimental Properties

Henry's Law constant = 2.39X10-7 atm-cu m/mol at 25 °C (est)

辛醇/水分配系数 LogP

-0.64

碰撞截面 Collision Cross Section

121.9 Ų [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine and drug standards]