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| L-Leucine |
| Molecular
formula:C6H13NO2 |
| CAS NO.61-90-5 |
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| Description: |
|
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| White crystals or crystalline
powder , slightly bitter taste. |
| Specification: |
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| Item |
AJI92 |
USP24 |
FCC4 |
| Assay |
99.0 ~ 100.5 % |
98.5 ~ 101.0 % |
98.5 ~ 101.0 % |
| PH |
5.5 ~ 6.5 |
5.5 ~
7.0 |
5.5 ~
7.0 |
| Specific
rotation[a]D20º |
+14.9º~ +16.0º |
+14.9º~ +17.3º |
+14.5º~ +16.0º |
| Transmittance
(T430) |
¡Ý 98.0 % |
|
|
| Chloride(CI) |
¡Ü0.020 % |
¡Ü0.05% |
|
| Ammonium(NH4) |
¡Ü0.02 % |
|
|
| Sulfate(SO4) |
¡Ü0.020 % |
¡Ü0.03% |
|
| Iron(Fe) |
¡Ü10ppm |
¡Ü30ppm |
|
| Heavy metals |
¡Ü10ppm |
¡Ü15ppm |
¡Ü20ppm |
| Arsenic |
¡Ü1ppm(
AS2O3) |
¡Ü1.5ppm(As) |
|
| Other amino acids |
|
|
|
| Loss on drying |
¡Ü0.20 % |
¡Ü0.2
% |
¡Ü0.20
% |
| Residue on ignition |
¡Ü0.10
% |
¡Ü0.3
% |
¡Ü0.10
% |
| Organic volatile
impurities |
|
Conforms |
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| Package: |
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| Fiber drum double polyethylene
bags inside (25kgs). |
| Storage: |
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| Cool, dry, dark in closed
containers, recommended limit 1 years. |
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