1216590-39-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1216590-39-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,6,5,9 and 0 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1216590-39:
(9*1)+(8*2)+(7*1)+(6*6)+(5*5)+(4*9)+(3*0)+(2*3)+(1*9)=144
144 % 10 = 4
So 1216590-39-4 is a valid CAS Registry Number.