690224-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 690224-56-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,2,2 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 690224-56:
(8*6)+(7*9)+(6*0)+(5*2)+(4*2)+(3*4)+(2*5)+(1*6)=157
157 % 10 = 7
So 690224-56-7 is a valid CAS Registry Number.