Phenol, 5-chloro-2-(3,4-dichlorophenoxy)-, also known as 2,4,5-T, is a synthetic chemical compound belonging to the family of chlorophenoxy herbicides. It is a white crystalline solid with a molecular formula of C12H6Cl3O3 and a molecular weight of 303.54 g/mol. 2,4,5-T is primarily used as a selective herbicide to control broadleaf weeds and woody plants in agricultural settings, particularly in the cultivation of crops like corn, soybeans, and rice. However, its use has been controversial due to its potential health and environmental risks, as it is a component of the infamous herbicide Agent Orange, which was used during the Vietnam War and has been linked to various health issues in exposed individuals. As a result, 2,4,5-T has been banned or restricted in many countries, and its production and use are closely regulated.
The CAS Registry Mumber 3380-33-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,3,8 and 0 respectively; the second part has 2 digits, 3 and 3 respectively. Calculate Digit Verification of CAS Registry Number 3380-33: (6*3)+(5*3)+(4*8)+(3*0)+(2*3)+(1*3)=74 74 % 10 = 4 So 3380-33-4 is a valid CAS Registry Number.