Sinapinic acid, or sinapic acid (Sinapine - Origin: L. Sinapi, sinapis, mustard, Gr., cf. F. Sinapine.), is a small naturally occurring hydroxycinnamic acid. It is a member of the phenylpropanoid family. It is a commonly used matrix in MALDI mass spectrometry. It is a useful matrix for a wide variety of peptides and proteins. It serves well as a matrix for MALDI due to its ability to absorb laser radiation and to also donate protons (H+) to the analyte of interest.

CAS：530-59-6
中文别名：3,5-二甲氧基-4-羟基肉桂酸;咖啡酸反式异构体;白芥酸;4-羟基-3,5-二甲氧基肉桂酸;
英文别名：Sinapinic Acid;4-Hydroxy-3,5-dimethoxycinnamic acid;4-Hydroxy-3,5-dimethoxycinnamic Acid;3,5-DiMethoxy-4-hydroxycinnaMic Acid;Sinapic acid;3,5-Dimethoxy-4-hydroxycinnamic acid;Sinapinic acid;3-(4-Hydroxy-3,5-dimethoxyphenyl)acrylic acid;
分子式：C11H12O5
分子量：224.21
精确质量：224.068
Psa：75.99
Logp：1.5072

MDL号：MFCD00004401

外观与性状：黄色-棕色结晶粉末
密度：1.307 g/cm3
沸点：403.4ºC at 760 mmHg
熔点：203-205°C (dec.)(lit.)
闪点：158.6ºC
水溶解性：insoluble
稳定性：Stable. Incompatible with strong oxidizing agents, strong bases. Combustible.
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：S26-S36-S37/39
危险类别码：R36/37/38
WGK Germany：3
海关编码：2918990090
危险品标志：Xi
危险标志：GHS07
危险性防范说明：P261; P305 + P351 + P338
信号词：Warning
危险性描述：H315; H319; H335

用途
有机合成