DL-Pyroglutamic acid DL-Pyroglutamic acid CAS 149-87-1 CAS NO.149-87-1

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DL-Pyroglutamic acid
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CAS 149-87-1

Quick Details

ProName: DL-Pyroglutamic acid DL-Pyroglutamic a...
CasNo: 149-87-1
Molecular Formula: C5H4ClNO2
Appearance: white crystalline powder
Application: Food/Medicine/Industria grade
DeliveryTime: Within 2~7 days after receiving the pa...
PackAge: A variety of packing ways for your cho...
Port: Wuhan / Shanghai / Guangzhou ...
ProductionCapacity: 300 Metric Ton/Month
Purity: 99%
Storage: Kept in a well-closed, light-resistant...
Transportation: EMS、TNT、DHL、UPS、FEDEX、SF、Wuhan Port、Sh...
LimitNum: 10 Gram
Moisture Content: 0.001
Impurity: 0.001

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Details

149-87-1 dl-pyroglutamic acid

product name: dl-pyroglutamic acid

synonyms: 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;dl-pyroglutamic acid

cas: 149-87-1

mf: c5h7no3

mw: 129.11

einecs: 205-748-3

appearance & physical state: white powder

density: 1.38 g/cm3

melting point: 180-185ºc

boiling point: 453.1ºc at 760 mmhg

flash point: 227.8ºc

refractive index: 1.511

stability: stable under normal temperatures and pressures.

storage condition: keep container closed when not in use. store in a cool, dry, well-ventilated area away from incompatible substances. keep containers tightly closed.

vapor pressure: 1.79e-09mmhg at 25°c

pyroglutamic acid (also known as pca, 5-oxoproline, pidolic acid, or pyroglutamate for its basic form) is an uncommon and little studied amino acid derivative in which the free amino group of glutamic acid or glutamine cyclizes to form a lactam. it is a metabolite in the glutathione cycle that is converted to glutamate by 5-oxoprolinase. pyroglutamate is found in many proteins including bacteriorhodopsin. n-terminal glutamic acid and glutamine residues can spontaneously cyclize to become pyroglutamate. this is one of several forms of blocked n-terminals which present a problem for n-terminal sequencing using edman chemistry, which requires a free primary amino group not present in pyroglutamic acid. the enzyme pyroglutamate aminopeptidase can restore a free n-terminus by cleaving off the pyroglutamate residue.

pyroglutamic acid, also known as pidolic acid, exists as two distinct enantiomers:

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