Home Categories Biochemical Engineering H-Pyr-OH
A6659212

H-Pyr-OH , 97% , 98-79-3

Synonym(s):
(S)-(−)-2-Pyrrolidone-5-carboxylic acid;(S)-5-Oxo-2-pyrrolidinecarboxylic acid;L-Pyroglutamic acid;Pidolic acid

CAS NO.:98-79-3

Empirical Formula: C5H7NO3

Molecular Weight: 129.11

MDL number: MFCD00005272

EINECS: 202-700-3

Pack Size Price Stock Quantity
100G RMB33.60 In Stock
500G RMB92.80 In Stock
2.5kg RMB317.60 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 160-163 °C(lit.)
Boiling point: 239.15°C (rough estimate)
alpha  -27.5 º (c=10, 1 N NaOH)
Density  1.3816 (rough estimate)
vapor pressure  0.002Pa at 25℃
refractive index  -10 ° (C=5, H2O)
storage temp.  2-8°C
solubility  H2O: 1 M at 20 °C, clear, colorless
pka 3.32(at 25℃)
form  Crystalline Powder
color  White to off-white
PH 1.7 (50g/l, H2O, 20℃)
Odor wh. crystal, odorless, sl. acidic taste
optical activity [α]20/D 10.5±1°, c = 5% in H2O
Water Solubility  10-15 g/100 mL (20 ºC)
Merck  14,8001
BRN  82132
Stability: Stable. Incompatible with bases, acids, strong oxidizing agents.
LogP -1.233 at 20℃

Description and Uses

A building block for pharmaceuticals and asymmetric synthesis

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-37/39
WGK Germany  3
RTECS  TW3710000
21
TSCA  Yes
HazardClass  IRRITANT
HS Code  29337900

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