556834-77-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 556834-77-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,6,8,3 and 4 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 556834-77:
(8*5)+(7*5)+(6*6)+(5*8)+(4*3)+(3*4)+(2*7)+(1*7)=196
196 % 10 = 6
So 556834-77-6 is a valid CAS Registry Number.