149837-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149837-77-4 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 7 respectively.
Calculate Digit Verification of CAS Registry Number 149837-77:
(8*1)+(7*4)+(6*9)+(5*8)+(4*3)+(3*7)+(2*7)+(1*7)=184
184 % 10 = 4
So 149837-77-4 is a valid CAS Registry Number.