1781454-65-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1781454-65-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,7,8,1,4,5 and 4 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1781454-65:
(9*1)+(8*7)+(7*8)+(6*1)+(5*4)+(4*5)+(3*4)+(2*6)+(1*5)=196
196 % 10 = 6
So 1781454-65-6 is a valid CAS Registry Number.