China D-Pyroglutamic acid | 4042-36-8 supplier

Details for D-Pyroglutamic acid

D-Pyroglutamic acid

Category:

Food and Feed additives/Food additives

CAS NO:

4042-36-8

EC NO:

223-735-0

Molecular Formula:

C₅H₇NO₃

Molecular Weight:

129.114

Specification:

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%

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;

Molecular Structure:

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