30695-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 30695-31-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,6,9 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 30695-31:
(7*3)+(6*0)+(5*6)+(4*9)+(3*5)+(2*3)+(1*1)=109
109 % 10 = 9
So 30695-31-9 is a valid CAS Registry Number.