101640-67-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 101640-67-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,6,4 and 0 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 101640-67:
(8*1)+(7*0)+(6*1)+(5*6)+(4*4)+(3*0)+(2*6)+(1*7)=79
79 % 10 = 9
So 101640-67-9 is a valid CAS Registry Number.