1286784-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1286784-77-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,6,7,8 and 4 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1286784-77:
(9*1)+(8*2)+(7*8)+(6*6)+(5*7)+(4*8)+(3*4)+(2*7)+(1*7)=217
217 % 10 = 7
So 1286784-77-7 is a valid CAS Registry Number.