Sichuan Tongsheng Amino acids Co.,Ltd.

D-Pyroglutamic acid

• Category :

  Food and Feed additives/Food additives

• Synonyms :

  D-5-Pyrrolidone-2-carboxylic acid;D-Pyroglutamic acid;(R)-(+)-2-Pyrrolidinone-5-carboxylic acid;H-D-Pyr-OH; ;2-oxopyrrolidine-1-carboxylic acid;

• CAS NO :

  4042-36-8

• EC NO :

  223-735-0

• Molecular Formula :

  C₅H₇NO₃

• Molecular Weight :

  129.114

• Main Specifications :

  Standard :AJI/USP

• InChI :

  InChI=1/C5H7NO3/c7-4-2-1-3-6(4)5(8)9/h1-3H2,(H,8,9)

• Product description :

  Appearance White crystals with lumps Specific rotation[α]D/20 (C=2 in H2O) +10.8°to +12.3° Melting Point (ºC) 160 to 163 ºC Chloride(C1) Not more than 0.02% Iron(Fe) Not more than 10ppm Heavy metals(Pb) Not more than 10ppm Arsenic(As2O3) Not more than 1ppm Loss on drying Not more than 0.20% Residue on ignition Not more than 0.10% Assay 98.0%¡«101.0%

• Molecular Structure :