Polyporic acid is a terphenyl benzoquinone compound first identified by German chemist Stahlschmidt from a mycelial culture of the fungus species Hapalopilus nidulans in 1877. This chemical, present at 20–40% of the fresh weight of the fruit bodies, inhibits the enzyme dihydroorotate dehydrogenase. It is found in other mushrooms, but in much lower amounts. Polyporic acid has some antifungal and antibacterial activity. It has been shown to be an intermediate in the biosynthesis of allantofuranone, a gamma-lactone antibiotic from the black rot fungus Allantophomopsis lycopodina.

CAS：548-59-4
中文别名：
英文别名：2,5-dihydroxy-3,6-diphenylbenzoquinone;Polyporin;2,5-Dihydroxy-3,6-diphenyl-[1,4]benzochinon;2,5-Cyclohexadiene-1,4-dione, 2,5-dihydroxy-3,6-diphenyl-;polyporic acid;Orygameic acid;2,5-Dihydroxy-3,6-diphenyl-p-benzoquinone;2,5-dihydroxy-3,6-diphenyl-2,5-cyclohexadiene-1,4-dione;2,5-dihydroxy-3,6-diphenyl-1,4-benzoquinone;S 1148;p-BENZOQUINONE,2,5-DIHYDROXY-3,6-DIPHENYL;
分子式：C18H12O4
分子量：292.285
精确质量：292.074
Psa：74.6
Logp：3.0768

密度：1.458g/cm3
沸点：535.5ºC at 760 mmHg
闪点：291.7ºC
折射率：1.72

海关编码：2914400090