Table 1.

IC50 values (µM) for inhibition of different HDAC isoforms.

	HDAC1	HDAC2	HDAC3	HDAC4	HDAC5	HDAC6	HDAC7	HDAC8	HDAC9	Selectivity	Reference
SAHA	0.0013	0.0016	0.005	_	3.6	0.0016	_	0.48	_	1,2,3,6,8	[11]
Crebinostat	0.0007	0.001	0.002	_	_	0.009	_	_	_	1,2,3,6	[12]
CI-994	0.05	0.19	0.55	_	_	_	_	_	_	1,2,3	[13]
Cpd-60	0.001	0.008	0.458	_	_	_	_	_	_	1,2	[14]
BG-45	2	2.2	0.289	_	_	>20	_	_	_	3	[15]
Tubacin	0.028	0.042	0.275	17	1.5	0.016	8.5	0.17	_	6	[16]
Tubastatin A	3.2	3.5	4.9	_	_	0.018	_	_	_	6	[17]
ACY-738	0.094	0.128	0.218	_	_	0.0017	_	_	_	6	[18]
ACY-775	2.123	2.57	1.12	_	_	0.0075	_	_	_	6	[18]
ACY-1215	0.058	0.048	0.051	7	5	0.004	1.4	0.1	10	6	[19]
Bavarostat	>1000	>1000	>1000	11.3	19	0.06	4.7	8.5	5.2	6	[20]
PCI-34051	>50	>50	6.8	_	_	2.9	_	0.01	>50	8	[21]