| Post Date: | Jan 11,2022 |
| Expiry Date: | Jan 11,2023 |
| Detailed Description: |
Cas No. :149-87-1
Quantity: 1Metric Tons Payment Method: T/T Product Name: H-DL-Pyr-OH CAS#: 149-87-1 Synonyms: DL-Pyroglutamic acid Molecular Formula: C5H7NO3 Molecular Weight: 129 Specification: (Reference Standard: AJI92) Items Standard Analysis data Appearance White crystalline powder Conforms Melting Point(ºC) 160.0 to 162.0ºC 160.5ºC Chloride(C1) Not more than0.02% 0.01% Ammonium(NH4) Not more than0.02% Conforms Sulfate(SO4) Not more than 0.02% 0.005% Heavy metals(Pb) Not more than 10ppm Conforms Iron(Fe) Not more than 10ppm 6ppm Arsenic(As2O3) Not more than 1ppm Conforms Loss on drying Not more than 0.50% 0.36% Residue on ignition Not more than0.1% Conforms Assay 98.0-101.0% |
| CAS Registry Number: | 149-87-1 |
| Synonyms: | ;DL-2-Pyrrolidone-5-Carboxylic Acid;Dl-5-Oxoproline;H-Dl-Pyr-Oh;Dl-Proline, 5-Oxo-;(+/-)-2-Pyrrolidone-5-Carboxylic Acid;2-Pyrrolidone-5-Carboxylic Acid;(+/-)-2-Pyrrolidinone-5-Carboxylic Acid;5-Oxo-Dl-Proline;Dl-A-Pyroglutamic Acid;Dl-Glutamic Acid Lactam;5-oxo-L-proline; |
| 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:; |
