6900-17-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6900-17-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,9,0 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 6900-17:
(6*6)+(5*9)+(4*0)+(3*0)+(2*1)+(1*7)=90
90 % 10 = 0
So 6900-17-0 is a valid CAS Registry Number.