690646-74-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 690646-74-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,6,4 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 690646-74:
(8*6)+(7*9)+(6*0)+(5*6)+(4*4)+(3*6)+(2*7)+(1*4)=193
193 % 10 = 3
So 690646-74-3 is a valid CAS Registry Number.