Factory supply High quality L-Pyroglutamic Acid PCA CAS No 98-79-3
L-Pyroglutamic Acid CAS No 98-79-3 Supplier in China
Chemical name: L-Pyroglutamic acid
CAS: 98-79-3
Molecular Formula: C5H7NO3
Molecular Weight: 129.11
EINECS: 202-700-3
Specification
Property |
Standard
|
Appearance
|
White powder
|
Rotary rate (a)D20
(C=5H2O)
|
-11.0º ~ -12.0º
|
Melting Point (ºC)
|
159ºC to 162 ºC
|
Chlorids (C1)
|
<0.02%
|
Amonnium salt (NH4
|
<0.02%
|
Sulphur salts (SO4
|
<0.02%
|
Heavy Metal (Pb)
|
<10ppm
|
Iron (Fe)
|
<10ppm
|
Arsenic salt (As2O3)
|
<1 PPM
|
Drying Loss
|
<0.50%
|
Burning residues
|
<0.2%
|
Content
|
99.0-101.0%
|
China
