155559-77-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155559-77-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,5,5 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 155559-77:
(8*1)+(7*5)+(6*5)+(5*5)+(4*5)+(3*9)+(2*7)+(1*7)=166
166 % 10 = 6
So 155559-77-6 is a valid CAS Registry Number.