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D-Pyroglutamic Acid
(CAS Number:4042-36-8 Product Number:P1354)


D-Pyroglutamic Acid
Synonym D-Glutamic Acid Lactam
Synonym H-D-Pyr-OH
Synonym (R)-5-Oxopyrrolidine-2-carboxylic Acid
Synonym (R)-2-Pyrrolidone-5-carboxylic Acid

General Information

Product Number P1354

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Purity/Analysis Method >98.0%(T)
Storage Temperature
M.F. / M.W. C5H7NO3=129.12
CAS Number 4042-36-8
Related CAS Number
MDL Number MFCD00066212
  • Product Details
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  • Reference & Application


Optical purity(LC) min. 99.0 ee%
Purity(Neutralization titration) min. 98.0 %
Melting point 159.0 to 164.0 deg-C
Specific rotation [a]20/D +8.0 to +12.0 deg(C=5, H2O)
Solubility in Water almost transparency

Data of Reference

ee >99.0%(HPLC)


Beilstein 22(5)6,7
Reaxys-RN 82133
PubChem SID 87575440
Merck Index(14) 8001

Transport Information

HS Number 2933.79.8500


PubMed Literature

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