1005640-67-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1005640-67-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,5,6,4 and 0 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1005640-67:
(9*1)+(8*0)+(7*0)+(6*5)+(5*6)+(4*4)+(3*0)+(2*6)+(1*7)=104
104 % 10 = 4
So 1005640-67-4 is a valid CAS Registry Number.