1,5-Dihydroxynaphthalene is an organic compound with the formula C10H6(OH)2. It is one of several isomers of dihydroxynaphthalene. It exists as colorless crystals that are soluble in polar organic solvents. It is a precursor to certain dyes.

CAS：83-56-7
中文别名：萘-1,5-二酚;1.5-二羟基萘 1.5-DIHYDROXYNAPHTHALENE;1,5-萘二酚;
英文别名：1,5-Naphthalenediol;naphthalene-1,5-diol;
分子式：C10H8O2
分子量：160.169
精确质量：160.052
Psa：40.46
Logp：2.251

MDL号：MFCD00003980

外观与性状：灰色至棕色粉末
密度：1.33 g/cm3
沸点：375.4ºC at 760 mmHg
熔点：259-261ºC
闪点：252ºC
折射率：1.725
稳定性：Stable under normal temperatures and pressures.
储存条件：Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

安全说明：S29-S39-S61
WGK Germany：2
危险类别码：R22; R36; R51/53
海关编码：2907299090
危险品标志：Xn

用途
是合成媒染偶氮染料的中间体。