1309661-58-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1309661-58-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,9,6,6 and 1 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1309661-58:
(9*1)+(8*3)+(7*0)+(6*9)+(5*6)+(4*6)+(3*1)+(2*5)+(1*8)=162
162 % 10 = 2
So 1309661-58-2 is a valid CAS Registry Number.