201734-76-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201734-76-1 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 4 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 201734-76:
(8*2)+(7*0)+(6*1)+(5*7)+(4*3)+(3*4)+(2*7)+(1*6)=101
101 % 10 = 1
So 201734-76-1 is a valid CAS Registry Number.