1280723-09-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1280723-09-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,0,7,2 and 3 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1280723-09:
(9*1)+(8*2)+(7*8)+(6*0)+(5*7)+(4*2)+(3*3)+(2*0)+(1*9)=142
142 % 10 = 2
So 1280723-09-2 is a valid CAS Registry Number.