Information
Levetiracetam
Molecular formula
C5H9NO3S
Molecular weight
163.20
CAS NO.
616-91-1
Efficacy & effectiveness
Relieves various symptoms due to bronchitis and bronchial asthma, prevention of hair oxidation, treating and prevents cornification at fingernails/toenails and/or hair.
Packaging unit and storage
10?, 25?, and 50? fiber drums. Should be stored in a cool dry place and avoid exposure to sunlight and moisture.
Product standards
USP, JSQI, BP
Property and state
White crystals or crystalline powder
Dissolved state (T%)
95.0% or higher
Specific optical rotation [a]20D
+21° ~ +27°
Melting point
104°C ~ 110°C
pH
2.0 ~ 2.8
Sulphate (SO4)
0.03% or lower
Heavy metal (Pb)
10ppm or lower
Iron (Fe)
15ppm or lower
Ammonium (NH4)
0.02% or lower
Arsenic (As2O3)
1ppm or lower
Zinc (Zn)
5ppm or lower
Other amino acids
TLC: Not detected
Loss on drying
0.5% or higher
Reside on ignition
0.5% or higher
Content
98.0% ~ 102.0%
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