1,1,1,2,3,3,3,3-Heptachloro-2-(trichloromethyl)propane, also known as Heptachlor exo-epoxide, is a highly toxic organochlorine compound. It is a metabolite of the pesticide Heptachlor, which was widely used in the past for termite control and as an insecticide. Heptachlor exo-epoxide is a persistent environmental pollutant, known for its resistance to degradation and its ability to bioaccumulate in the food chain. It poses significant health risks, including potential carcinogenic, neurotoxic, and endocrine-disrupting effects. Due to its hazardous nature, Heptachlor and its derivatives, including Heptachlor exo-epoxide, have been banned or restricted in many countries to protect human health and the environment.
The CAS Registry Mumber 6820-74-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,2 and 0 respectively; the second part has 2 digits, 7 and 4 respectively. Calculate Digit Verification of CAS Registry Number 6820-74: (6*6)+(5*8)+(4*2)+(3*0)+(2*7)+(1*4)=102 102 % 10 = 2 So 6820-74-2 is a valid CAS Registry Number.