19901-44-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19901-44-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,0 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 19901-44:
(7*1)+(6*9)+(5*9)+(4*0)+(3*1)+(2*4)+(1*4)=121
121 % 10 = 1
So 19901-44-1 is a valid CAS Registry Number.
19901-44-1Relevant articles and documents
PIPERAZINE DERIVATIVES AND USE AS CYSTEINE INHIBITORS
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, (2008/06/13)
The present invention is directed to a compound of the following formula (I) inclusive of its salt STR1 [wherein R 1 represents either carboxy which may be esterified or amidated carboxy which may be substituted; R 2 represents hydrogen or lower alkyl and