371963-M
H-89, Dihydrochloride
A cell-permeable, selective, reversible, ATP-competitive and potent inhibitor of protein kinase A (Ki = 48 nM).
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Synonym(s):
H-89, Dihydrochloride, N-[2-(( p-Bromocinnamyl)amino)ethyl]-5-isoquinolinesulfonamide, 2HCl, PKA Inhibitor III, N-[2-((p-Bromocinnamyl)amino)ethyl]-5-isoquinolinesulfonamide, 2HCl, PKA Inhibitor III
Empirical Formula (Hill Notation):
C20H20BrN3O2S · 2HCl
Recommended Products
Quality Level
Assay
≥99% (HPLC)
form
film (crystalline)
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze
color
clearoff-white
solubility
DMSO: 200 mg/mL
water: 25 mg/mL
storage temp.
2-8°C
InChI
1S/C20H20BrN3O2S/c21-18-8-6-16(7-9-18)3-2-11-22-13-14-24-27(25,26)20-5-1-4-17-15-23-12-10-19(17)20/h1-10,12,15,22,24H,11,13-14H2/b3-2+
InChI key
ZKZXNDJNWUTGDK-NSCUHMNNSA-N
General description
A cell-permeable, selective, reversible, ATP-competitive and potent inhibitor of protein kinase A (Ki = 48 nM). Inhibits other kinases at several fold higher concentrations: myosin light chain kinase (Ki = 28.3 µM), Ca2+/calmodulin-dependent protein kinase II (Ki = 29.7 µM), protein kinase C (Ki = 31.7 µM), casein kinase I (Ki = 38.3 µM), and Rho Kinase II (IC50 = 270 nM). May be used to discriminate between the effects of PKA and cAMP-regulated guanine-nucleotide-exchange factors (GEFs), such as GEFI or Epac (exchange protein directly activated by cAMP) and GEFII. Reported to induce neurite formation in NG 108-15 cells (~1 mM) by blocking the action of Rho kinase II.
A cell-permeable, selective, reversible, ATP-competitive and potent inhibitor of protein kinase A (Ki = 48 nM). Inhibits other kinases only at much higher concentrations: CaM kinase II (Ki = 29.7 µM), casein kinase I (Ki = 38.3 µM), myosin light chain kinase (Ki = 28.3 µM), protein kinase C (Ki = 31.7 µM), and ROCK-II (IC50 = 270 nM). May be used to discriminate between the effects of PKA and cAMP-regulated guanine-nucleotide-exchange factors (GEFs) such as GEFI, GEFII, or Epac (exchange protein directly activated by cAMP). Enhances radiation-induced apoptosis in the human cell line BM 13674. A 10 mM (1 mg/193 µl) solution of H-89, 2HCl (Cat. No. 371962) in DMSO is also available.
Biochem/physiol Actions
Primary Target
PKA
PKA
Target Ki: 48 nM for protein kinase A
Warning
Toxicity: Standard Handling (A)
Reconstitution
Following reconstitution, store in the refrigerator (4°C). Stock solutions are stable for at up to 4 months at 4°C.
Other Notes
Leemhuis, J., et al. 2002. J. Pharmacol. Exp. Ther.300, 1000.
Davies, S.P., et al. 2000. Biochem. J.351, 95.
Kawasaki, H., et al. 1998. Science 282, 2275.
de Rooij, J., et al. 1998. Nature 396, 474.
Findik, D., et al. 1995. J. Cell. Biochem.57, 12.
Geilen, C.C. 1992. FEBS Lett.309, 381.
Chijiwa, T., et al. 1990. J. Biol. Chem.265, 5267.
Combest, W.L., et al. 1988. J. Neurochem.51, 1581.
Davies, S.P., et al. 2000. Biochem. J.351, 95.
Kawasaki, H., et al. 1998. Science 282, 2275.
de Rooij, J., et al. 1998. Nature 396, 474.
Findik, D., et al. 1995. J. Cell. Biochem.57, 12.
Geilen, C.C. 1992. FEBS Lett.309, 381.
Chijiwa, T., et al. 1990. J. Biol. Chem.265, 5267.
Combest, W.L., et al. 1988. J. Neurochem.51, 1581.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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