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CAS No:4042-36-8 (2R)-5-oxopyrrolidine-2-carboxylic acid
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D-pyroglutamic acid 4042-36-8

  • CAS No.: 4042-36-8
  • Weight: 129.11398
  • Formula: C5H7NO3
  • Melting Point: 155-162 ºC
  • Place of Orign: Deyang,Sichuan,China
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Item specifics

  • Product Name.:D-pyroglutamic acid 4042-36-8
  • CAS No: 4042-36-8
  • Weight: 129.11398
  • Formula: C5H7NO3
  • Melting Point: 155-162 ºC
  • Boiling Point: 453.1°Cat760mmHg
  • Density: 1.38g/cm3

Details

Appearance
White crystals with lumps

Specific rotation[a]D/20

(C=2 in H2O)
+10.8to +12.3

Melting Point
160 to 163

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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