201737-55-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201737-55-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,7,3 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 201737-55:
(8*2)+(7*0)+(6*1)+(5*7)+(4*3)+(3*7)+(2*5)+(1*5)=105
105 % 10 = 5
So 201737-55-5 is a valid CAS Registry Number.