1217707-22-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1217707-22-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,7,7,0 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1217707-22:
(9*1)+(8*2)+(7*1)+(6*7)+(5*7)+(4*0)+(3*7)+(2*2)+(1*2)=136
136 % 10 = 6
So 1217707-22-6 is a valid CAS Registry Number.