127724-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 127724-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,7,2 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 127724-91:
(8*1)+(7*2)+(6*7)+(5*7)+(4*2)+(3*4)+(2*9)+(1*1)=138
138 % 10 = 8
So 127724-91-8 is a valid CAS Registry Number.