Phosphoric acid O,O-dipropyl O-(2,2-dichlorovinyl) ester, also known as dichlorvos or DDVP, is an organophosphorus compound widely used as an insecticide. It is a colorless, oily liquid with a pungent odor and is highly toxic to humans and animals. DDVP works by inhibiting the enzyme acetylcholinesterase, which disrupts the nervous system of insects, leading to paralysis and death. It is effective against a broad range of pests, including flies, mosquitoes, and cockroaches, and is commonly used in household and agricultural settings. However, due to its high toxicity and potential health risks, its use has been restricted or banned in many countries.
The CAS Registry Mumber 71-98-7 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 7 and 1 respectively; the second part has 2 digits, 9 and 8 respectively. Calculate Digit Verification of CAS Registry Number 71-98: (4*7)+(3*1)+(2*9)+(1*8)=57 57 % 10 = 7 So 71-98-7 is a valid CAS Registry Number.
