131195-74-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131195-74-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,1,9 and 5 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 131195-74:
(8*1)+(7*3)+(6*1)+(5*1)+(4*9)+(3*5)+(2*7)+(1*4)=109
109 % 10 = 9
So 131195-74-9 is a valid CAS Registry Number.