1005644-78-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1005644-78-9 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 4 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1005644-78:
(9*1)+(8*0)+(7*0)+(6*5)+(5*6)+(4*4)+(3*4)+(2*7)+(1*8)=119
119 % 10 = 9
So 1005644-78-9 is a valid CAS Registry Number.