694521-26-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 694521-26-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,4,5,2 and 1 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 694521-26:
(8*6)+(7*9)+(6*4)+(5*5)+(4*2)+(3*1)+(2*2)+(1*6)=181
181 % 10 = 1
So 694521-26-1 is a valid CAS Registry Number.