239448-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 239448-80-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,9,4,4 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 239448-80:
(8*2)+(7*3)+(6*9)+(5*4)+(4*4)+(3*8)+(2*8)+(1*0)=167
167 % 10 = 7
So 239448-80-7 is a valid CAS Registry Number.