| post date: | jan 11,2022 |
| expiry date: | jan 11,2023 |
| detailed description: |
cas no. :4042-36-8
payment method: t/t 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% |
| cas registry number: | 4042-36-8 |
| 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 formula: | c5h7no3 |
| molecular weight: | 129.114 |
| molecular structure: | 
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| hazard symbols: | |
| risk codes: | r36/37/38:; |
| safety description: | s26:; s37/39:; |
