1238305-25-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1238305-25-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,8,3,0 and 5 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1238305-25:
(9*1)+(8*2)+(7*3)+(6*8)+(5*3)+(4*0)+(3*5)+(2*2)+(1*5)=133
133 % 10 = 3
So 1238305-25-3 is a valid CAS Registry Number.