149837-74-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149837-74-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,8,3 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 149837-74:
(8*1)+(7*4)+(6*9)+(5*8)+(4*3)+(3*7)+(2*7)+(1*4)=181
181 % 10 = 1
So 149837-74-1 is a valid CAS Registry Number.