1886-16-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1886-16-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,8 and 6 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1886-16:
(6*1)+(5*8)+(4*8)+(3*6)+(2*1)+(1*6)=104
104 % 10 = 4
So 1886-16-4 is a valid CAS Registry Number.