Paraxanthine, or 1,7-dimethylxanthine, is a dimethyl derivative of xanthine, structurally related to caffeine. Like caffeine, paraxanthine is a psychoactive central nervous system (CNS) stimulant. It possesses a potency roughly equal to that of caffeine and is likely involved in the mediation of the effects of caffeine itself.

CAS：611-59-6
中文别名：副黄嘌呤;咖啡因杂质F;
英文别名：1,7-dimethyl-3H-purine-2,6-dione;Paraxanthine;
分子式：C7H8N4O2
分子量：180.164
精确质量：180.065
Psa：72.68
Logp：-1.0397

MDL号：MFCD00005727

外观与性状：灰白色至淡黄色固体
密度：1.6 g/cm3
熔点：294-296ºC(lit.)
折射率：1.737
稳定性：Store tightly sealed at RT
储存条件：-20ºC Freezer

RTECS号：RV9380000
安全说明：S22; S24/25
危险类别码：R22
WGK Germany：3
危险品标志：Xn
信号词：Warning
危险性描述：H302
危险标志：GHS07