87726-17-8 carbopenems Panipenem 99%
Item |
Specification |
Specific rotation |
+39.5 to +41.5° |
State of solution(transmittance) |
Clear 98.0% min. |
Chloride[cl] |
0.020% max. |
Ammonium [NH4] |
0.02% max. |
Sulfate[SO4] |
0.020% max |
Iron[Fe] |
10ppm max. |
Heavy metals [Pb] |
10ppm max |
Arsenic[As2O3] |
1ppm max |
Other amino acids |
Chromatographically not detectable |
Loss on drying |
0.20% max. |
Residue on ignition[sulfated] |
0.10% max. |
Assay |
99.0% min |
Molecular Structure of Panipenemum (CAS NO.87726-17-8):
IUPAC Name: (5R,6S)-3-[(3S)-1-ethanimidoylpyrrolidin-3-yl]sulfanyl-6-[(1R)-1-hydroxyethyl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Empirical Formula: C15H21N3O4S
Molecular Weight: 339.4099
H bond acceptors: 7
H bond donors: 3
Freely Rotating Bonds: 5
Polar Surface Area: 130.23 Å2
Index of Refraction: 1.745
Molar Refractivity: 84.7 cm3
Molar Volume: 208.8 cm3
Surface Tension: 68.9 dyne/cm
Density: 1.62 g/cm3
Flash Point: 289.7 °C
Enthalpy of Vaporization: 96.17 kJ/mol
Boiling Point: 555.5 °C at 760 mmHg
Vapour Pressure: 1.18E-14 mmHg at 25°C
CAS: 87726-17-8
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