691894-30-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 691894-30-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,1,8,9 and 4 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 691894-30:
(8*6)+(7*9)+(6*1)+(5*8)+(4*9)+(3*4)+(2*3)+(1*0)=211
211 % 10 = 1
So 691894-30-1 is a valid CAS Registry Number.