(2,4,5-trichloro-phenoxy)-acetic acid-[2-(2-butoxy-ethoxy)-ethyl ester] is a complex organic compound with the chemical formula C16H21Cl3O6. It is an ester derivative of 2,4,5-trichlorophenoxyacetic acid, which is a synthetic auxin herbicide. (2,4,5-trichloro-phenoxy)-acetic acid-[2-(2-butoxy-ethoxy)-ethyl ester] is characterized by its three chlorine atoms attached to the phenoxy ring, and its ester group consists of a 2-butoxy-ethoxy-ethyl moiety. It is used in agriculture to control broadleaf weeds and woody plants by mimicking the action of natural plant hormones, promoting uncontrolled growth that ultimately leads to plant death. Due to its potential environmental and health concerns, its use is regulated in many countries.
The CAS Registry Mumber 2630-20-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,3 and 0 respectively; the second part has 2 digits, 2 and 0 respectively. Calculate Digit Verification of CAS Registry Number 2630-20: (6*2)+(5*6)+(4*3)+(3*0)+(2*2)+(1*0)=58 58 % 10 = 8 So 2630-20-8 is a valid CAS Registry Number.