|
Product Name: |
L-isoleucine |
MF: |
C6H13NO2 |
|
CAS No.: |
73-32-5 |
Purity: |
99% |
|
EINECS No.: |
200-798-2 |
Origin: |
China |
|
Item |
Specification |
Results |
|
Appearance |
White crystals or crystalline Powder |
Conforms |
|
Assay |
99.78—101.0% |
99.80% |
|
Specific rotation |
+38.6-+41.5 |
+39.8 |
|
PH |
5.5-7.0 |
6.05 |
|
Loss on drying |
no more than 0.3% |
0.18% |
|
Heavy metals(Pb) |
no more than 20ppm |
less than10ppm |
|
Content |
98.5~101.0% |
99.89% |
|
Iron(Fe) |
no more than20ppm |
less than20ppm |
|
Arsenic(As2O3) |
no more than1ppm |
less than1ppm |
|
Lead |
no more than10ppm |
10ppm |
|
Other Amino Acids |
Chromatographically not detectable |
Conforms |
|
Residue on ignition (Sulfated) |
no more than 0.2% |
0.15% |
|
Conclusion |
Conform with specification |
|
Storage |
Store in sealed containers at cool & dry place. |
|
|
Protect from light, moisture and pest infestation. |
|
Shelf life |
2 years when properly stored |
Isoleucine (abbreviated as Ile or I)[1] is an α-amino acid with the chemical formula HO2CCH(NH2)CH(CH3)CH2CH3. It is an essential amino acid, which means that humans cannot synthesize it, so it must be ingested. Its codons are AUU, AUC and AUA.With a hydrocarbon side chain, isoleucine is classified as a hydrophobic amino acid. Together with threonine, isoleucine is one of two common amino acids that have a chiral side chain. Four stereoisomers of isoleucine are possible, including two possible diastereomers of L-isoleucine. However, isoleucine present in nature exists in one enantiomeric form, (2S,3S)-2-amino-3-methylpentanoic acid.
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