423769-63-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 423769-63-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,3,7,6 and 9 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 423769-63:
(8*4)+(7*2)+(6*3)+(5*7)+(4*6)+(3*9)+(2*6)+(1*3)=165
165 % 10 = 5
So 423769-63-5 is a valid CAS Registry Number.