239127-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 239127-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,9,1,2 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 239127-91:
(8*2)+(7*3)+(6*9)+(5*1)+(4*2)+(3*7)+(2*9)+(1*1)=144
144 % 10 = 4
So 239127-91-4 is a valid CAS Registry Number.