1203500-11-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1203500-11-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,3,5,0 and 0 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1203500-11:
(9*1)+(8*2)+(7*0)+(6*3)+(5*5)+(4*0)+(3*0)+(2*1)+(1*1)=71
71 % 10 = 1
So 1203500-11-1 is a valid CAS Registry Number.