Table 2. H₂S Release Profiles of 1-(Benzoylthio)-3-phenylurea Based Donors^a.

			CysSH		GSH
donors	R1	R2	Tpeak (min)	[H2S]peak (μM)	Tpeak (min)	[H2S]peak (μM)
NSHD-27	H	H	95	21.5	110	29.9
NSHD-28	OCH3	H	105	14.1	120	26.4
NSHD-29	CH3	H	105	16.5	130	20.0
NSHD-30	F	H	75	18.8	90	18.5
NSHD-31	Cl	H	95	18.2	120	24.9
NSHD-32	H	CH3	90	21.8	130	27.4
NSHD-33	H	Cl	110	10.7	120	20.9

^aData were reported as the average value of three measurements.