69311-93-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69311-93-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,3,1 and 1 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 69311-93:
(7*6)+(6*9)+(5*3)+(4*1)+(3*1)+(2*9)+(1*3)=139
139 % 10 = 9
So 69311-93-9 is a valid CAS Registry Number.