| | Identification | More |  | [Name] 
 H-8 DIHYDROCHLORIDE
 |  | [CAS] 
 113276-94-1
 |  | [Synonyms] 
 H-8
 H-8 HYDROCHLORIDE
 H-8 DIHYDROCHLORIDE
 H-8 dihydrochloride,98%
 H8, dihydrochloride salt
 H-8 dihydrochloride >98% (HPLC)
 H-8 DIHYDROCHLORIDE POTENT INHIBITOR OF C
 N-[2-(methylamino)ethyl]isoquinoline-5-sulfonamide
 2-(5-isoquinolinylsulfonylamino)ethyl-methylammonium
 N-[2-(METHYLAMINO)ETHYL]-5-ISOQUINOLINESULFONAMIDE 2HCL
 N-[2-(METHYLAMINO)ETHYL]-5-ISOQUINOLINESULFONAMIDE, DI-HCL SALT
 N-(2-[METHYLAMINO]ETHYL)-5-ISOQUINOLINESULFONAMIDE HYDROCHLORIDE
 N-(2-(METHYLAMINO)ETHYL)ISOQUINOLINE-5-SULFONAMIDE DIHYDROCHLORIDE
 N-[2-(METHYLAMINO)ETHYL]-5-ISOQUINOLINESULFONAMIDE DIHYDROCHLORIDE
 5-IsoquinolinesulfonaMide,N-[2-(MethylaMino)ethyl]-, hydrochloride (1:2)
 |  | [Molecular Formula] 
 C12H17Cl2N3O2S
 |  | [MDL Number] 
 MFCD00036962
 |  | [Molecular Weight] 
 338.25
 |  | [MOL File] 
 113276-94-1.mol
 | 
 | Chemical Properties | Back Directory |  | [Appearance] 
 white to off-white crystalline solid
 |  | [Melting point ] 
 221-222℃ (methanol  water )
 |  | [storage temp. ] 
 2-8°C
 
 |  | [solubility ] 
 ethanol: 25 mg/mL, clear, colorless
 
 |  | [form ] 
 Lyophilized
 |  | [color ] 
 White to Off-White
 |  | [Water Solubility ] 
 water: 10mg/mL
 |  | [InChI] 
 InChI=1S/C12H15N3O2S.2ClH/c1-13-7-8-15-18(16,17)12-4-2-3-10-9-14-6-5-11(10)12;;/h2-6,9,13,15H,7-8H2,1H3;2*1H
 |  | [InChIKey] 
 RJJLZYZEVNCZIW-UHFFFAOYSA-N
 |  | [SMILES] 
 C12=CC=NC=C1C=CC=C2S(=O)(=O)NCCNC.Cl.Cl
 |  | [CAS DataBase Reference] 
 113276-94-1(CAS DataBase Reference)
 | 
 | Safety Data | Back Directory |  | [Safety Statements ] 
 S22:Do not breathe dust .
 S24/25:Avoid contact with skin and eyes .
 |  | [WGK Germany ] 
 3
 
 |  | [HS Code ] 
 29334990
 | 
 | Hazard Information | Back Directory |  | [Description] 
 The H series isoquinolinesulfonamide protein kinase (PK) inhibitors are widely used to block signaling pathways to elucidate mechanisms of cellular regulation and signal transduction. H-8, an isoquinolinesulfonamide protein kinase (PK) inhibitor, is a potent inhibitor of PKA and PKG and shows moderate inhibition for PKC and MLCK with Ki values of 1.2, 0.48, 15, and 68 μM, respectively.1,2,3 H-8 can disrupt transcriptional elongation by inhibiting cyclin C/Cdk8 and cyclin H/Cdk7/p36 CTD kinase activity with IC50 values of 47 and 6.2 μM, respectively.4
 |  | [Chemical Properties] 
 white to off-white crystalline solid
 |  | [Uses] 
 Active inhibitor of cyclic-nucleotide-dependent protein kinases.
 |  | [Biochem/physiol Actions] 
 cAMP and cGMP-dependent protein kinase inhibitor.
 |  | [storage] 
 Store at -20°C
 |  | [References] 
 [1] R A ENGH. 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.[J]. The Journal of Biological Chemistry, 1996, 271 42: 26157-26164. DOI: 10.1074/jbc.271.42.26157
 [2] HIROYOSHI HIDAKA. Isoquinolinesulfonamides, novel and potent inhibitors of cyclic nucleotide-dependent protein kinase and protein kinase C[J]. Biochemistry Biochemistry, 1984, 23 21: 5036-5041. DOI: 10.1021/bi00316a032
 [3] M HAGIWARA   H H  M Inagaki. Specific binding of a novel compound, N-[2-(methylamino)ethyl]-5-isoquinolinesulfonamide (H-8) to the active site of cAMP-dependent protein kinase.[J]. Molecular Pharmacology, 1987, 31 5: 523-528.
 [4] P RICKERT   E L  J L Corden. Cyclin C/CDK8 and cyclin H/CDK7/p36 are biochemically distinct CTD kinases.[J]. Oncogene, 1999, 18 4: 1093-1102. DOI: 10.1038/sj.onc.1202399
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