1217747-22-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1217747-22-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,7,7,4 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1217747-22:
(9*1)+(8*2)+(7*1)+(6*7)+(5*7)+(4*4)+(3*7)+(2*2)+(1*2)=152
152 % 10 = 2
So 1217747-22-2 is a valid CAS Registry Number.