Pyranine is a hydrophilic, pH-sensitive fluorescent dye from the group of chemicals known as arylsulfonates. Pyranine is soluble in water and has applications as a coloring agent, biological stain, optical detecting reagent, and a pH indicator. One example would be the measurement of intracellular pH. Pyranine is also found in yellow highlighters, giving them their characteristic fluorescence and bright yellow-green colour. It is also found in some types of soap.

CAS：6358-69-6
中文别名：溶剂绿7;8-羟基-1,3,6-芘三磺酸三钠;8-羟基芘-1,3,6-三磺酸三钠盐;
英文别名：trisodium,8-hydroxypyrene-1,3,6-trisulfonate;Solvent Green 7;
分子式：C16H7Na3O10S3
分子量：524.385
精确质量：523.889
Psa：216.97
Logp：4.2443

MDL号：MFCD00037575

外观与性状：黄色至绿色-黄色粉末
密度：2.15
沸点：171-178°C10mm Hg(lit.)
熔点：62-63.5°C(lit.)
闪点：250 °C
水溶解性：300 g/L (25 ºC)
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.

RTECS号：UR2700000
安全说明：S36/37-S37/39-S26-S36
WGK Germany：3
危险类别码：R36/37/38
海关编码：3204170000
危险品标志：Xi
信号词：Warning
危险标志：GHS07
危险性防范说明：P261; P305 + P351 + P338
危险性描述：H315; H319; H335

用途
主要用于油漆、塑料制品等的着色