Pidolicacid Pidolicacid 125mg

CAS号：98-79-3

品名：L-焦谷氨酸5-oxo-L-proline

中文别名：(S)-5-氧-2-吡咯烷羧酸;(S)-(-)-2-吡咯烷酮-5-羧酸;(S)-(-)-2-吡咯烷酮-5-甲酸;5-羧基吡咯烷酮;

英文别名：L-Pyroglutamicacid;hydroxy-pyridin-3-yl-aceticacid;5oxoproline;L-Proline,5-oxo-;L-Pyroglutamicacid;

分子式：C5H7NO3

分子量：129.114

精确质量：129.043

Psa：66.4

RTECS号：TW3710000

MDL号：MFCD00005272

外观与性状：白色细晶体

密度：1.38 g/cm3

沸点：453.1ºC at 760 mmHg

熔点：160-163°C(lit.)

闪点：227.8ºC

折射率：-10 ° (C=5, H2O)

稳定性：Stable. Incompatible with bases, acids, strong oxidizing agents.

储存条件：Store at RT.

安全说明：S26-S36-S37/39

危险类别码：R36/37/38

WGK Germany：3

海关编码：2933790090

危险品标志：Xi

简介：Pyroglutamicacid(alsoknownasPCA,5-oxoproline,pidolicacid,orpyroglutamateforitsbasicform)isanuncommonandlittlestudiedaminoacidderivativeinwhichthefreeaminogroupofglutamicacidorglutaminecyclizestoformalactam.Itisametaboliteintheglutathionecyclethatisconvertedtoglutamateby5-oxoprolinase.Pyroglutamateisfoundinmanyproteinsincludingbacteriorhodopsin.N-terminalglutamicacidandglutamineresiduescanspontaneouslycyclizetobecomepyroglutamate.ThisisoneofseveralformsofblockedN-terminalswhichpresentaproblemforN-terminalsequencingusingEdmanchemistry,whichrequiresafreeprimaryaminogroupnotpresentinpyroglutamicacid.TheenzymepyroglutamateaminopeptidasecanrestoreafreeN-terminusbycleavingoffthepyroglutamateresidue.

用途：用于食品、医药、化妆品等行业。