3-Pentachloraethyl-phenylisocyanat, also known as 3-(2,2,2-trichloro-1-chloroethyl)phenyl isocyanate, is a chemical compound with the molecular formula C9H6Cl5NO. It is a derivative of phenyl isocyanate, where one hydrogen atom on the phenyl ring is replaced by a pentachloroethyl group. 3-Pentachloraethyl-phenylisocyanat is characterized by its high reactivity due to the presence of the isocyanate functional group, which can readily react with various nucleophiles to form ureas and other derivatives. It is used in the synthesis of various chemical products, particularly in the production of pesticides and pharmaceuticals. Due to its potential toxicity and reactivity, it is important to handle 3-Pentachloraethyl-phenylisocyanat with care, following appropriate safety protocols.
The CAS Registry Mumber 721-25-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,2 and 1 respectively; the second part has 2 digits, 2 and 5 respectively. Calculate Digit Verification of CAS Registry Number 721-25: (5*7)+(4*2)+(3*1)+(2*2)+(1*5)=55 55 % 10 = 5 So 721-25-5 is a valid CAS Registry Number.