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D-Pyroglutamic acid 4042-36-8

Date：2022-01-12      Categories：Related Application Product

  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: 4042-36-8 5-Oxo-D-proline
  Hazard Symbols:  Xi:Irritant;
  Risk Codes: R36/37/38:;
  Safety Description: S26:;
S37/39:;

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