2,3-Dihydroxybenzoic acid is a natural phenol found in Phyllanthus acidus and in the aquatic fern Salvinia molesta. It is also abundant in the fruits of Flacourtia inermis. It is a dihydroxybenzoic acid, a type of organic compound. The colorless solid occurs naturally, being formed via the shikimate pathway. It is incorporated into various siderophores, which are molecules that strongly complex iron ions for absorption into bacteria. 2,3-DHB consists of a catechol group, which upon deprotonation binds iron centers very strongly, and the carboxylic acid group by which the ring attaches to various scaffolds via amide linkages. A famous high affinity siderophore is enterochelin, which contains three dihydroxybenzoyl substituents linked to the depsipeptide of serine.

CAS：303-38-8
中文别名：苯邻二酚-3-羧酸;焦儿茶酸;儿茶酚-3-羧酸;兒茶酚甲酸;2,3-二羟苯甲酸;
英文别名：catecholcarboxylicacid;2,3-DIAMIDOXIMO-1,4-DIHYDROXYNAPHTHALENE;Catechol-3-carboxylic Acid;2,3-dihydroxybenzoate;O-PYROCATECHUIC ACID;di-hydroxybenzoic acid;2-pyrocatechuicacid;pyrocatechuic acid;Benzoic acid, 2,3-dihydroxy-;2,3-Dihydroxybenzoic acid;Pyrocatechol-3-carboxylic Acid;2,3-Dihydroxybenzoic;RARECHEM AL BE 0035;2,3 DHB;DOBK;o-Pyrocatechuic Acid;hydroxysalicylic acid;2,3-Dihydroxybenzoicacid;
分子式：C7H6O4
分子量：154.12
精确质量：154.027
Psa：77.76
Logp：0.796

MDL号：MFCD00002446

外观与性状：白色结晶粉末
密度：1,542 g/cm3
沸点：95-96/0.5mm
熔点：204-206°C(lit.)
闪点：187.2ºC
储存条件：2-8°C

RTECS号：DG8576490
安全说明：S26-S36-S37/39
危险类别码：R36/37/38
WGK Germany：2
海关编码：2918290000
危险品标志：Xi

用途
医药中间体。