149640-97-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149640-97-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,6,4 and 0 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 149640-97:
(8*1)+(7*4)+(6*9)+(5*6)+(4*4)+(3*0)+(2*9)+(1*7)=161
161 % 10 = 1
So 149640-97-1 is a valid CAS Registry Number.