2127-95-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2127-95-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,2 and 7 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2127-95:
(6*2)+(5*1)+(4*2)+(3*7)+(2*9)+(1*5)=69
69 % 10 = 9
So 2127-95-9 is a valid CAS Registry Number.