1034689-56-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1034689-56-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,4,6,8 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1034689-56:
(9*1)+(8*0)+(7*3)+(6*4)+(5*6)+(4*8)+(3*9)+(2*5)+(1*6)=159
159 % 10 = 9
So 1034689-56-9 is a valid CAS Registry Number.