237431-28-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 237431-28-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,7,4,3 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 237431-28:
(8*2)+(7*3)+(6*7)+(5*4)+(4*3)+(3*1)+(2*2)+(1*8)=126
126 % 10 = 6
So 237431-28-6 is a valid CAS Registry Number.