N-Difluor-phosphono-carbamidsaeure-phenylester, also known as DFP, is a potent organophosphorus compound that acts as an irreversible 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 slight odor and is highly toxic, posing a significant risk to human health and the environment. It has been used as a chemical warfare agent and as a pesticide, but its use has been largely discontinued due to its high toxicity and potential for misuse. The compound is also of interest in research for its potential applications in the development of new drugs targeting acetylcholinesterase-related diseases.
The CAS Registry Mumber 1535-62-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,5,3 and 5 respectively; the second part has 2 digits, 6 and 2 respectively. Calculate Digit Verification of CAS Registry Number 1535-62: (6*1)+(5*5)+(4*3)+(3*5)+(2*6)+(1*2)=72 72 % 10 = 2 So 1535-62-2 is a valid CAS Registry Number.