1,3-Di-m-chlorophenoxypropan, also known as 2,4-Dichlorophenoxypropionic acid or 2,4-D, is a widely used synthetic auxin-type herbicide. It is a selective herbicide that primarily targets broadleaf weeds and grasses, while having minimal impact on certain crops like corn and cereals. 2,4-D is a chlorophenoxy herbicide, which means it contains a chlorinated phenoxy group, and it works by mimicking the action of plant hormones, causing uncontrolled growth and ultimately leading to the death of the targeted weeds. The chemical structure of 2,4-D consists of a 2,4-dichlorophenoxy group attached to a propionic acid chain. It is commonly used in agriculture, forestry, and residential settings for weed control and is available in various formulations, including liquid, granular, and powder forms.
The CAS Registry Mumber 3875-74-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,8,7 and 5 respectively; the second part has 2 digits, 7 and 4 respectively. Calculate Digit Verification of CAS Registry Number 3875-74: (6*3)+(5*8)+(4*7)+(3*5)+(2*7)+(1*4)=119 119 % 10 = 9 So 3875-74-9 is a valid CAS Registry Number.