1040687-80-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1040687-80-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,0,6,8 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1040687-80:
(9*1)+(8*0)+(7*4)+(6*0)+(5*6)+(4*8)+(3*7)+(2*8)+(1*0)=136
136 % 10 = 6
So 1040687-80-6 is a valid CAS Registry Number.