557786-43-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 557786-43-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,7,7,8 and 6 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 557786-43:
(8*5)+(7*5)+(6*7)+(5*7)+(4*8)+(3*6)+(2*4)+(1*3)=213
213 % 10 = 3
So 557786-43-3 is a valid CAS Registry Number.