Technical Data
H-8 dihydrochloride (N-5-isoquinolinesulfonamide . 2HCl)
Biochemicals Storage: +4C/+4CShipping: Blue Ice
Potent cAMP- and cGMP-dependent protein kinase (PKA and PKG) inhibitor. Myosin light chain kinase (MLCK) inhibitor. Tool to study protein crystal structure-inhibitor interactions.

Storage and Stability:
Short-term Storage: +4C
Long-term Storage: +4C
Stable for at least 2 years after receipt when stored at +4C.

CAS Number:

Molecular Formula:
C12H15N3O2S . 2HCl

Molecular Weight:
Purity: >98% (NMR)

Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Product Reference:
Isoquinolinesulfonamides, novel and potent inhibitors of cyclic nucleotide dependent protein kinase and protein kinase C: H. Hidaka, et al.; Biochemistry 23, 5036 (1984)
Naphthalenesulfonamides as calmodulin antagonists and protein kinase inhibitors: M. Inagaki, et al.; Mol. Pharmacol. 29, 577 (1986)
Specific binding of a novel compound, N--5-isoquinolinesulfonamide (H-8) to the active site of cAMP-dependent protein kinase: M. Hagiwara, et al.; Mol. Pharmacol. 31, 523 (1987)
Selective modulation of calcium-dependent myosin phosphorylation by novel protein kinase inhibitors, isoquinolinesulfonamide derivatives: M. Hagiwara, et al.; Mol. Pharmacol. 32, 7 (1987)
Crystal structures of catalytic subunit of cAMP-dependent protein kinase in complex with isoquinolinesulfonyl protein kinase inhibitors H7, H8, and H89. Structural implications for selectivity: R.A. Engh, et al.; J. Biol. Chem. 271, 26157 (1996)

Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.