N-(2,2,3,3,3-Pentachlor-1-hydroxy-propyl)-benzamid, also known as Pentachlorophenol (PCP), is a chemical compound with the formula C13H6Cl5O2. It is a white crystalline solid that is highly toxic and has been used as a broad-spectrum biocide, fungicide, and wood preservative. PCP is known for its resistance to degradation and has been widely used in various applications, including the treatment of utility poles, railway sleepers, and marine pilings. However, due to its persistence in the environment and potential health risks, its use has been restricted or banned in many countries. The compound is also recognized for its potential to cause cancer and other serious health issues, leading to its classification as a hazardous substance.
The CAS Registry Mumber 889-51-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,8 and 9 respectively; the second part has 2 digits, 5 and 1 respectively. Calculate Digit Verification of CAS Registry Number 889-51: (5*8)+(4*8)+(3*9)+(2*5)+(1*1)=110 110 % 10 = 0 So 889-51-0 is a valid CAS Registry Number.