149765-31-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149765-31-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,7,6 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 149765-31:
(8*1)+(7*4)+(6*9)+(5*7)+(4*6)+(3*5)+(2*3)+(1*1)=171
171 % 10 = 1
So 149765-31-1 is a valid CAS Registry Number.