1016648-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1016648-71-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,6,6,4 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1016648-71:
(9*1)+(8*0)+(7*1)+(6*6)+(5*6)+(4*4)+(3*8)+(2*7)+(1*1)=137
137 % 10 = 7
So 1016648-71-7 is a valid CAS Registry Number.