1142945-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1142945-77-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,4,2,9,4 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1142945-77:
(9*1)+(8*1)+(7*4)+(6*2)+(5*9)+(4*4)+(3*5)+(2*7)+(1*7)=154
154 % 10 = 4
So 1142945-77-4 is a valid CAS Registry Number.