1630972-39-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1630972-39-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,0,9,7 and 2 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1630972-39:
(9*1)+(8*6)+(7*3)+(6*0)+(5*9)+(4*7)+(3*2)+(2*3)+(1*9)=172
172 % 10 = 2
So 1630972-39-2 is a valid CAS Registry Number.