685142-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 685142-56-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,5,1,4 and 2 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 685142-56:
(8*6)+(7*8)+(6*5)+(5*1)+(4*4)+(3*2)+(2*5)+(1*6)=177
177 % 10 = 7
So 685142-56-7 is a valid CAS Registry Number.