1761-12-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1761-12-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,6 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1761-12:
(6*1)+(5*7)+(4*6)+(3*1)+(2*1)+(1*2)=72
72 % 10 = 2
So 1761-12-2 is a valid CAS Registry Number.