102442-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 102442-71-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,4,4 and 2 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 102442-71:
(8*1)+(7*0)+(6*2)+(5*4)+(4*4)+(3*2)+(2*7)+(1*1)=77
77 % 10 = 7
So 102442-71-7 is a valid CAS Registry Number.