1776-86-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1776-86-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,7 and 6 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1776-86:
(6*1)+(5*7)+(4*7)+(3*6)+(2*8)+(1*6)=109
109 % 10 = 9
So 1776-86-9 is a valid CAS Registry Number.