Levetiracetam impurity B
Names
[ CAS No. ]:
358629-47-7
[ Name ]:
Levetiracetam impurity B
[Synonym ]:
UNII-M64Y2GM5FI
2-(2-Oxo-pyrrolidin-1-yl)-but-2-eno
Levetiracetam specified impurity B [EP]
2-(2-Oxopyrrolidin-1-yl)but-2-enamide,(2Z)
(2Z)-2-(2-Oxo-1-pyrrolidinyl)-2-butenamide
Levetiracetam impurity B
1-Pyrrolidineacetamide, α-ethylidene-2-oxo-, (αZ)-
Chemical & Physical Properties
[ Density]:
1.2±0.1 g/cm3
[ Boiling Point ]:
443.0±28.0 °C at 760 mmHg
[ Molecular Formula ]:
C8H12N2O2
[ Molecular Weight ]:
168.193
[ Flash Point ]:
221.7±24.0 °C
[ Exact Mass ]:
168.089874
[ PSA ]:
64.39000
[ LogP ]:
-0.42
[ Vapour Pressure ]:
0.0±1.1 mmHg at 25°C
[ Index of Refraction ]:
1.553
Safety Information
[ HS Code ]:
2933790090
Customs
[ HS Code ]: 2933790090
[ Summary ]:
2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%