2,2,4,4,6-Pentachloro-heptane, also known as PCH, is a chlorinated hydrocarbon with the chemical formula C7H7Cl5. It is a colorless liquid with a density of 1.5 g/cm3 and a boiling point of 260°C. PCH is a persistent organic pollutant (POP) and is considered toxic and environmentally hazardous. It is formed as a byproduct during the production of other chlorinated compounds, such as hexachlorocyclohexane (HCH), which was once widely used as an insecticide. Due to its potential to bioaccumulate and persist in the environment, PCH has been listed under Stockholm the Convention on Persistent Organic Pollutants, which aims to eliminate or restrict the production and use of such harmful chemicals.
The CAS Registry Mumber 75296-41-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,9 and 6 respectively; the second part has 2 digits, 4 and 1 respectively. Calculate Digit Verification of CAS Registry Number 75296-41: (7*7)+(6*5)+(5*2)+(4*9)+(3*6)+(2*4)+(1*1)=152 152 % 10 = 2 So 75296-41-2 is a valid CAS Registry Number.