1233940-50-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1233940-50-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,3,9,4 and 0 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1233940-50:
(9*1)+(8*2)+(7*3)+(6*3)+(5*9)+(4*4)+(3*0)+(2*5)+(1*0)=135
135 % 10 = 5
So 1233940-50-5 is a valid CAS Registry Number.