1421358-72-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1421358-72-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,3,5 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1421358-72:
(9*1)+(8*4)+(7*2)+(6*1)+(5*3)+(4*5)+(3*8)+(2*7)+(1*2)=136
136 % 10 = 6
So 1421358-72-6 is a valid CAS Registry Number.