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China Suppliers > aminoacids > Details for D-Pyroglutamic acid
| Category: | Food and Feed additives/Food additives |
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| 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% |
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| 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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