223494-85-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223494-85-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,4,9 and 4 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 223494-85:
(8*2)+(7*2)+(6*3)+(5*4)+(4*9)+(3*4)+(2*8)+(1*5)=137
137 % 10 = 7
So 223494-85-7 is a valid CAS Registry Number.