1017783-51-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1017783-51-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,7,7,8 and 3 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1017783-51:
(9*1)+(8*0)+(7*1)+(6*7)+(5*7)+(4*8)+(3*3)+(2*5)+(1*1)=145
145 % 10 = 5
So 1017783-51-5 is a valid CAS Registry Number.