1380242-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1380242-77-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,0,2,4 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1380242-77:
(9*1)+(8*3)+(7*8)+(6*0)+(5*2)+(4*4)+(3*2)+(2*7)+(1*7)=142
142 % 10 = 2
So 1380242-77-2 is a valid CAS Registry Number.