| |
 |
 |
|
| L-Valine |
|
| Chemical Name： |
L-2-Amino-3-methylbutyric
acid |
|
Structure Formula：
|
 |
|
Molecular Formula：
|
C5H11NO2 |
|
Molecular Weight：
|
117.15
|
|
Cas No：
|
[72-18-4] |
|
Characteristics：
|
White
crystals or crystalline powder
|
|
Quality
Standards：
|
USP24,
FCCIV and etc. |
|
Item
|
Specifications
|
|
USP24
|
FCCIV
|
|
Appearance
|
White
crystals or crystalline powder
|
|
Assay,%
|
98.5~101.5
|
98.5~101.5
|
|
Specific
optical rotation
|
+26.6°~
+28.8°
|
+26.6°~
+29.0°
|
|
pH
Value
|
5.5~7.0
|
5.5~7.0
|
|
Loss
on drying, %
|
≤0.3
|
≤0.3
|
|
Residue
on ignition, %
|
≤0.1
|
≤0.1
|
|
Sulfate
(as SO4), %
|
≤0.03
|
-
- -
|
|
Chloride
(as Cl),%
|
≤0.05
|
-
- -
|
|
Heavy
Metals (as Pb), %
|
≤0.0015
|
≤0.002
|
|
Lead,
%
|
-
- -
|
≤0.001
|
|
Iron,
%
|
≤0.003
|
-
- -
|
|
Organic
volatile impurities
|
Meets
the requirements
|
-
- -
|
|
|
The
Characteristics and Uses：
|
|
|
Package
and Transport：
|
Cardboard drum double polyethylene bags inside (25kgs) |
|
Storage：
|
Cool, dry, dark in closed containers, recommended
limit 2 year. |
|
|
|
|
|
