2041-04-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2041-04-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,4 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2041-04:
(6*2)+(5*0)+(4*4)+(3*1)+(2*0)+(1*4)=35
35 % 10 = 5
So 2041-04-5 is a valid CAS Registry Number.
InChI:InChI=1/2C8H20N.4BrH.Co/c2*1-5-9(6-2,7-3)8-4;;;;;/h2*5-8H2,1-4H3;4*1H;/q2*+1;;;;;+2/p-4/r2C8H20N.Br4Co/c2*1-5-9(6-2,7-3)8-4;1-5(2,3)4/h2*5-8H2,1-4H3;/q2*+1;-2