Vulpinic acid is a naturally occurring pulvinic acid derivative found in several lichen species, as well as some non-lichenized fungi. It was first isolated in 1925. It is bright yellow, and relatively toxic.

CAS：521-52-8
中文别名：枕酸甲酯;3,4-二羟基-2,5-二苯基-2,4-已二稀二酸甲酯-3,6-内酯;
英文别名：VULPINIC ACID;
分子式：C19H14O5
分子量：322.311
精确质量：322.084
Psa：72.83
Logp：3.0968

UNII：13N7RF6M84

密度：1.375g/cm3
沸点：568.8ºC at 760mmHg
熔点：146-148ºC
闪点：210.2ºC
折射率：1.656
储存条件：-20ºC Freezer

安全说明：S1; S22; S45
危险类别码：R28
危险品运输编码：UN 3172