1609956-66-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1609956-66-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,9,9,5 and 6 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1609956-66:
(9*1)+(8*6)+(7*0)+(6*9)+(5*9)+(4*5)+(3*6)+(2*6)+(1*6)=212
212 % 10 = 2
So 1609956-66-2 is a valid CAS Registry Number.