1428234-77-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1428234-77-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,8,2,3 and 4 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1428234-77:
(9*1)+(8*4)+(7*2)+(6*8)+(5*2)+(4*3)+(3*4)+(2*7)+(1*7)=158
158 % 10 = 8
So 1428234-77-8 is a valid CAS Registry Number.