843641-73-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 843641-73-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,3,6,4 and 1 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 843641-73:
(8*8)+(7*4)+(6*3)+(5*6)+(4*4)+(3*1)+(2*7)+(1*3)=176
176 % 10 = 6
So 843641-73-6 is a valid CAS Registry Number.