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L-Pyroglutamic Acid
(CAS Number:98-79-3 Product Number:P0573)


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

General Information

Product Number P0573

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Purity/Analysis Method >97.0%(T)
Storage Temperature
M.F. / M.W. C5H7NO3=129.12
CAS Number 98-79-3
Related CAS Number
MDL Number MFCD00005272
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Purity(Neutralization titration) min. 97.0 %
Melting point 157.0 to 164.0 deg-C
Specific rotation [a]20/D -8.0 to -12.0 deg(C=5, H2O)


Beilstein 22,284
Reaxys-RN 82132
PubChem SID 87574744
Merck Index(14) 8001
RTECS# TW3710000

Transport Information

HS Number 2933.79.8500


PubMed Literature

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