Methyl-(1,1,2,2,3-pentachloro-propyl)-ether, also known as pentachloropropanediol dinitrate (PCPDN), is a chlorinated organic compound with the chemical formula C5H7Cl5O. It is a colorless to pale yellow oily liquid with a pungent odor. PCPDN is primarily used as a chemical intermediate in the synthesis of various pesticides and pharmaceuticals. Due to its high chlorination, it exhibits significant chemical stability and resistance to degradation. However, concerns have been raised regarding its potential environmental and health impacts, as it can be toxic and persistent in the environment. As a result, its production and use have been restricted or banned in many countries.
The CAS Registry Mumber 4093-54-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,9 and 3 respectively; the second part has 2 digits, 5 and 4 respectively. Calculate Digit Verification of CAS Registry Number 4093-54: (6*4)+(5*0)+(4*9)+(3*3)+(2*5)+(1*4)=83 83 % 10 = 3 So 4093-54-3 is a valid CAS Registry Number.