Thiophosphorsaeure-O,O-bis-pentachlorphenylester-dimethylamid, also known as O,O-diethyl S-(2,3,4,5,6-pentachlorophenyl) phosphorodithioate, is a chemical compound with the molecular formula C12H12Cl5O2PS2. It is a colorless to pale yellow liquid with a pungent odor. Thiophosphorsaeure-O,O-bis-pentachlorphenylester-dimethylamid is primarily used as an organophosphorus insecticide and acaricide, targeting a wide range of pests in agriculture. It works by inhibiting the activity of acetylcholinesterase, an enzyme essential for the proper functioning of the nervous system in insects. Due to its high toxicity and potential environmental and health risks, its use has been restricted or banned in many countries.
The CAS Registry Mumber 1778-99-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,7 and 8 respectively; the second part has 2 digits, 9 and 9 respectively. Calculate Digit Verification of CAS Registry Number 1778-99: (6*1)+(5*7)+(4*7)+(3*8)+(2*9)+(1*9)=120 120 % 10 = 0 So 1778-99-0 is a valid CAS Registry Number.