155215-78-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155215-78-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,2,1 and 5 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 155215-78:
(8*1)+(7*5)+(6*5)+(5*2)+(4*1)+(3*5)+(2*7)+(1*8)=124
124 % 10 = 4
So 155215-78-4 is a valid CAS Registry Number.