971-97-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 971-97-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,7 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 971-97:
(5*9)+(4*7)+(3*1)+(2*9)+(1*7)=101
101 % 10 = 1
So 971-97-1 is a valid CAS Registry Number.
InChI:InChI=1/C19H22N2O2/c1-21(2)13-7-12-19(23)15-9-4-3-8-14(15)18(22)20-17-11-6-5-10-16(17)19/h3-6,8-11,23H,7,12-13H2,1-2H3,(H,20,22)