1283107-76-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1283107-76-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,3,1,0 and 7 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1283107-76:
(9*1)+(8*2)+(7*8)+(6*3)+(5*1)+(4*0)+(3*7)+(2*7)+(1*6)=145
145 % 10 = 5
So 1283107-76-5 is a valid CAS Registry Number.