557106-97-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 557106-97-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,7,1,0 and 6 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 557106-97:
(8*5)+(7*5)+(6*7)+(5*1)+(4*0)+(3*6)+(2*9)+(1*7)=165
165 % 10 = 5
So 557106-97-5 is a valid CAS Registry Number.