2164-57-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2164-57-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,6 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 2164-57:
(6*2)+(5*1)+(4*6)+(3*4)+(2*5)+(1*7)=70
70 % 10 = 0
So 2164-57-0 is a valid CAS Registry Number.