109236-83-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109236-83-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,2,3 and 6 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 109236-83:
(8*1)+(7*0)+(6*9)+(5*2)+(4*3)+(3*6)+(2*8)+(1*3)=121
121 % 10 = 1
So 109236-83-1 is a valid CAS Registry Number.