263243-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 263243-21-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,3,2,4 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 263243-21:
(8*2)+(7*6)+(6*3)+(5*2)+(4*4)+(3*3)+(2*2)+(1*1)=116
116 % 10 = 6
So 263243-21-6 is a valid CAS Registry Number.