DD, also known as Dichlorvos, is an organophosphate insecticide and acaricide. Here are the basic properties of DDVP:

Chemical Formula: DDVP has the chemical formula C4H7Cl2O4P.

Physical State: DDVP is typically a colorless to light brown liquid or a solid crystalline material, depending on its formulation and purity.

Odor: DDVP has a distinct, sweet, and slightly fruity odor. This odor can help indicate its presence, although it may not be easily detectable at low concentrations.

Solubility: DDVP is soluble in various organic solvents, such as ethanol, methanol, and acetone. It is also slightly soluble in water.

Toxicity: DDVP is highly toxic to humans and animals. It is classified as a cholinesterase inhibitor, meaning it interferes with the activity of cholinesterase enzymes in the nervous system. Exposure to DDVP can lead to symptoms such as nausea, dizziness, muscle twitching, respiratory distress, and, in severe cases, can be fatal.

Mode of Action: DDVP acts by inhibiting the activity of cholinesterase enzymes, which are vital for the proper functioning of the nervous system. By blocking the breakdown of the neurotransmitter acetylcholine, DDVP leads to an excessive accumulation of acetylcholine in nerve synapses, resulting in overstimulation of the nervous system and subsequent toxicity to insects or pests.

Usage: DDVP is used as an insecticide and acaricide in various settings, including agriculture, veterinary applications, public health, and industrial or household pest control. It is effective against a wide range of insects, including mosquitoes, flies, ants, cockroaches, and stored product pests.

Degradation: DDVP can degrade under certain conditions, including exposure to ultraviolet (UV) light, heat, and alkaline conditions. It may break down into various metabolites, some of which may still possess toxicity.

Regulations: Due to its high toxicity, DDVP is subject to stringent regulations in many countries. Its use may be restricted or banned in specific applications or locations. It is important to adhere to local regulations and guidelines when handling, using, or storing DDVP.