Pseudoephedrine

CAS RN: 90-82-4

Other Properties

Fine, white to off-white crystals or powder; faint characteristic odor; mp: 182-185 deg C; soln are neutral to litmus /hcl/
Occurs as dl, d & l isomers
Needles, mp 182.5-183.5 deg C. Specific optical rotation: +62.05 at 20 deg C/D. UV max (ethanol): 208, 251, 257, 264 nm (epsilon 8300, 161, 201, 161). pKa: 9.22. Solubility at 25 deg C,(g/mL): water 2.0; chloroform 0.011; ethanol 0.278. Partition coefficient (25 deg C): 0.010 (n-octanol/water, pH 1.2); 0.049 (n-octanol/water, pH 6.0). /Hydrochloride/
Henry's Law constant = 8.65X10-11 atm-cu m/mol at 25 deg C (est)
Hydroxyl radical reaction rate constant = 9.97X10-11 cu cm/molec-sec at 25 deg C (est)
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