184903-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 184903-71-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,4,9,0 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 184903-71:
(8*1)+(7*8)+(6*4)+(5*9)+(4*0)+(3*3)+(2*7)+(1*1)=157
157 % 10 = 7
So 184903-71-7 is a valid CAS Registry Number.