690271-44-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 690271-44-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,2,7 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 690271-44:
(8*6)+(7*9)+(6*0)+(5*2)+(4*7)+(3*1)+(2*4)+(1*4)=164
164 % 10 = 4
So 690271-44-4 is a valid CAS Registry Number.