Table I.

First-Order Degradation Rate Constants (k), Degradation Half-Lives (t 1/2) and Solubility of THC-HG at 25°C in Buffers of Various pH Values

pH	k (h−1)	t 1/2 (days)	Solubility (μg/mL)
2.4	0.0051	5.66	−
3.0	0.0014	20.63	+
4.0	0.0016	18.05	+
5.0	−	−	2.52
6.0	0.0069	4.18	6.12
7.0	0.0094	3.07	17.29
8.0	0.0121	2.39	539.56
10.0	−	−	411.34

− Study not performed at that condition, + No detectable THC-HG peak observed