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1202893-55-7

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1202893-55-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1202893-55-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,2,8,9 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1202893-55:
(9*1)+(8*2)+(7*0)+(6*2)+(5*8)+(4*9)+(3*3)+(2*5)+(1*5)=137
137 % 10 = 7
So 1202893-55-7 is a valid CAS Registry Number.

1202893-55-7Relevant articles and documents

NOVEL CATECHOL DERIVATIVE, PHARMACEUTICAL COMPOSITION CONTAINING THE SAME, USE OF THE CATECHOL DERIVATIVE AND USE OF THE PHARMACEUTICAL COMPOSITION

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Page/Page column 22, (2011/04/25)

The present invention provides compounds represented by general formula (I): or pharmaceutical acceptable salts thereof, wherein R1 and R2 are each hydrogen, lower acyl, lower alkoxycarbonyl or the like; R3 is lower alkyl, halo-lower alkyl, cycloalkyl, heterocycloalkyl, optionally substituted aryl, optionally substituted heteroaryl or the like; R4 is cyano, lower alkoxycarbonyl, carboxy or the like, which exhibit potent COMT inhibitory activities. The present invention also provides pharmaceutical compositions containing said compound, and uses thereof.

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