127720-43-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 127720-43-8 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 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 127720-43:
(8*1)+(7*2)+(6*7)+(5*7)+(4*2)+(3*0)+(2*4)+(1*3)=118
118 % 10 = 8
So 127720-43-8 is a valid CAS Registry Number.