155699-20-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155699-20-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,6,9 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 155699-20:
(8*1)+(7*5)+(6*5)+(5*6)+(4*9)+(3*9)+(2*2)+(1*0)=170
170 % 10 = 0
So 155699-20-0 is a valid CAS Registry Number.