DL-Pyroglutamic acid 147-87-1
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Post Date:
Jan 13,2025
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Expiry Date:
Jan 13,2026
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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%
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CAS Registry Number:
149-87-1
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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;
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Molecular Formula:
C5H7NO3
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Molecular Weight:
129.114
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Molecular Structure:
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Hazard Symbols:
Xi:Irritant;
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Risk Codes:
R36/37/38:;
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Safety Description:
S26:;
S37/39:;
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