1242471-40-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1242471-40-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,2,4,7 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1242471-40:
(9*1)+(8*2)+(7*4)+(6*2)+(5*4)+(4*7)+(3*1)+(2*4)+(1*0)=124
124 % 10 = 4
So 1242471-40-4 is a valid CAS Registry Number.