N-[(2,4-dichloro-phenoxy)-acetyl]-DL-threonine, commonly known as 2,4-Dichlorophenoxyacetic acid (2,4-D), is a synthetic auxin-type herbicide. It is a white crystalline powder with a molecular formula of C8H7Cl2O4 and a molecular weight of 221.04 g/mol. 2,4-D is widely used in agriculture to control broadleaf weeds and woody plants by mimicking the action of natural plant hormones, promoting uncontrolled growth and eventually leading to plant death. It is also employed in various industrial applications, such as the production of plastics and resins. However, due to its potential environmental and health risks, the use of 2,4-D is regulated in many countries, and there is ongoing research into its effects on ecosystems and human health.
The CAS Registry Mumber 6293-94-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,9 and 3 respectively; the second part has 2 digits, 9 and 4 respectively. Calculate Digit Verification of CAS Registry Number 6293-94: (6*6)+(5*2)+(4*9)+(3*3)+(2*9)+(1*4)=113 113 % 10 = 3 So 6293-94-3 is a valid CAS Registry Number.