Propertiesa

Carbamazepine

Sildenafil citrate

Methylparaben

Molecular

structure

Cs

C15H12N2O

C28H38N6O11S

C8H8O3

CAS

298?46?4

171599?3?0

99?76-3

Mw (g/mol)

236.09

666.70

152.05

Ws (mg/L) a 25˚C

18

3500

2500

pKa

<2.3; >13.9

4; 5.5; 8.8

8.4

Log P

2.45

2.70

1.96

H (atm-Cu m/mol)

1.08 × 10−7

7.2 × 10−21

2.23 × 10−9

Calculations with the program Hiperchem

Log P

1.95

0.78

1.49

Surface area (Å2)

300.13

694.53

313.16

Molec. volume (Å3)

686.20

1303.37

488.48