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1616831-12-9

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1616831-12-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1616831-12-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,6,8,3 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1616831-12:
(9*1)+(8*6)+(7*1)+(6*6)+(5*8)+(4*3)+(3*1)+(2*1)+(1*2)=159
159 % 10 = 9
So 1616831-12-9 is a valid CAS Registry Number.

1616831-12-9Relevant articles and documents

COMT INHIBITORS

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Page/Page column 140, (2014/07/21)

The present invention relates to compounds of formula (I), wherein the substituents are described in claim 1 and to the pharmaceutically acceptable salts thereof. These compounds inhibit the enzyme catechol-O-methyltransferase (COMT). The compounds may be used for the treatment of Parkinson's disease, depression, cognitive impairment and motor symptoms, resistant depression, cognitive impairment, mood and negative symptoms of schizophrenia.

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