3,5-Dihydroxybenzoic acid (α-resorcylic acid) is a dihydroxybenzoic acid. It is a metabolite of alkylresorcinols, first identified in human urine and can be quantified in urine and plasma, and may be an alternative, equivalent biomarker of whole grain wheat intake.

CAS：99-10-5
中文别名：Α-雷锁辛甲酸;3,5-二羟苯甲酸;α-雷琐辛甲酸;α-雷琐酸;
英文别名：3,5-dihydroxybenzoate;resorcinol-5-carboxylic acid;3,5-Dihydroxybenzoesure;A-RESORCYLIC ACID;3,5-Dihydroxybenzoic acid;Benzoic acid, 3,5-dihydroxy-;5-carboxyresorcinol;3,5-Dihydroxybenzoic;
分子式：C7H6O4
分子量：154.12
精确质量：154.027
Psa：77.76
Logp：0.796

MDL号：MFCD00002512
EINECS号：202-730-7

外观与性状：白色至灰白色结晶粉末
密度：1.559 g/cm3
沸点：411.5ºC at 760 mmHg
熔点：236-238°C (dec.)(lit.)
闪点：200°C
水溶解性：84 g/L (20 ºC)
稳定性：Stable under normal temperatures and pressures.
储存条件：Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.

RTECS号：VH3708000
安全说明：S26-S36-S37/39
WGK Germany：1
危险类别码：R36/37/38
海关编码：29182990
包装等级：III
危险品标志：Xi