Diisopropyl phosphorofluoridite, also known as DFP or diisopropyl fluorophosphonate, is a highly toxic organophosphorus compound that acts as a potent inhibitor of acetylcholinesterase, an enzyme responsible for breaking down the neurotransmitter acetylcholine. This inhibition leads to the accumulation of acetylcholine in the synaptic cleft, causing overstimulation of the nervous system. DFP is a colorless, oily liquid with a faint, fruity odor and is used as a chemical warfare agent due to its ability to cause severe incapacitation or death. It can be absorbed through the skin, inhaled, or ingested, and its effects can range from mild symptoms like headache and dizziness to severe respiratory distress, seizures, and even death. DFP is also used as a pesticide and has been employed as an insecticide in the past. Due to its extreme toxicity and potential for misuse, DFP is strictly regulated and controlled under various international chemical weapon conventions.
The CAS Registry Mumber 2356-34-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,3,5 and 6 respectively; the second part has 2 digits, 3 and 4 respectively. Calculate Digit Verification of CAS Registry Number 2356-34: (6*2)+(5*3)+(4*5)+(3*6)+(2*3)+(1*4)=75 75 % 10 = 5 So 2356-34-5 is a valid CAS Registry Number.