55837-01-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55837-01-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,8,3 and 7 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 55837-01:
(7*5)+(6*5)+(5*8)+(4*3)+(3*7)+(2*0)+(1*1)=139
139 % 10 = 9
So 55837-01-9 is a valid CAS Registry Number.