694500-81-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 694500-81-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,4,5,0 and 0 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 694500-81:
(8*6)+(7*9)+(6*4)+(5*5)+(4*0)+(3*0)+(2*8)+(1*1)=177
177 % 10 = 7
So 694500-81-7 is a valid CAS Registry Number.