1286685-18-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1286685-18-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,6,6,8 and 5 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1286685-18:
(9*1)+(8*2)+(7*8)+(6*6)+(5*6)+(4*8)+(3*5)+(2*1)+(1*8)=204
204 % 10 = 4
So 1286685-18-4 is a valid CAS Registry Number.