101239-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 101239-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,2,3 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 101239-72:
(8*1)+(7*0)+(6*1)+(5*2)+(4*3)+(3*9)+(2*7)+(1*2)=79
79 % 10 = 9
So 101239-72-9 is a valid CAS Registry Number.