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ChemicalBook--->CAS DataBase List--->223749-46-0

223749-46-0

223749-46-0 Structure

223749-46-0 Structure
IdentificationBack Directory
[Name]

N-[(3R,4S)-3,4-Dihydro-3-hydroxy-2,2-dimethyl-6-(4,4,4-trifluorobutoxy)-2H-1-benzopyran-4-yl]-N-methylmetanesulfonamide
[CAS]

223749-46-0
[Synonyms]

HMR 1556
HMR-1556 >=98% (HPLC)
N-[(3R,4S)-3,4-Dihydro-3-hydroxy-2,2-dimethyl-6-(4,4,4-trifluorobutoxy)-2H-1-benzopyran-4-yl]-N-methylmetanesulfonamide
Methanesulfonamide, N-[(3R,4S)-3,4-dihydro-3-hydroxy-2,2-dimethyl-6-(4,4,4-trifluorobutoxy)-2H-1-benzopyran-4-yl]-N-methyl-
[Molecular Formula]

C17H24F3NO5S
[MOL File]

223749-46-0.mol
[Molecular Weight]

411.44
Chemical PropertiesBack Directory
[Melting point ]

178-179 °C
[Boiling point ]

469.0±55.0 °C(Predicted)
[density ]

1.35±0.1 g/cm3(Predicted)
[storage temp. ]

Store at -20°C
[solubility ]

Soluble in DMSO
[form ]

Solid
[pka]

13.30±0.60(Predicted)
[color ]

White to off-white
[optical activity]

[α]/D +2 to +3.5°, c =0.1 in methanol
Hazard InformationBack Directory
[Uses]

HMR 1556 is an inhibitor of the slow delayed rectifier potassium current, used in the monitoring and treatment of proarrythmia.
[Biological Activity]

HMR-1556 is a potent and selective blocker of the heteromeric KCNQ1-KCNE1 (KvLQT1-MinK) voltage-gated channel-mediated slowly activating K+ current (IKs IC50 = 120 nM in hKCNE1-transfected Xenopus oocytes; little or no inhibition of HergKv1.3 (KCNA3)Kv1.5 (KCNA5)Kir2.1 (KCNJ2)HCN2 (BCNG2) current in respective oocyte transfectants). HMR-1556 is more potent than chromanol 293B (IKs IC50 = 34 nM and 2.1 μMrespectively; guinea pig ventricular myocytes)being inefficient against L-type Ca2+ channel or rapidly delayed & inward rectifier currents (IKr & IK1) in guinea pig ventricular myocytesnor transient & sustained outward currentsI(to) & I(sus)in r at ventricular myocytes.
[storage]

Store at -20°C
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