1284280-65-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1284280-65-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,4,2,8 and 0 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1284280-65:
(9*1)+(8*2)+(7*8)+(6*4)+(5*2)+(4*8)+(3*0)+(2*6)+(1*5)=164
164 % 10 = 4
So 1284280-65-4 is a valid CAS Registry Number.