1421503-36-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1421503-36-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,5,0 and 3 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1421503-36:
(9*1)+(8*4)+(7*2)+(6*1)+(5*5)+(4*0)+(3*3)+(2*3)+(1*6)=107
107 % 10 = 7
So 1421503-36-7 is a valid CAS Registry Number.