1,1,2,4,5,5-hexachloro-3-dichloromethylene-penta-1,4-diene, also known as hexachlorocyclopentadiene, is a chlorinated organic compound with the chemical formula C5Cl6. It is a colorless to pale yellow liquid with a pungent odor. 1,1,2,4,5,5-hexachloro-3-dichloromethylene-penta-1,4-diene is primarily used as an intermediate in the production of various chemicals, including pesticides and other chlorinated organic compounds. Due to its high chlorine content, hexachlorocyclopentadiene is known for its chemical stability and resistance to degradation. However, it is also recognized for its potential environmental and health risks, as it can be toxic and persistent in the environment. As a result, its use is regulated in many countries to minimize exposure and protect both human health and the environment.
The CAS Registry Mumber 6928-61-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,9,2 and 8 respectively; the second part has 2 digits, 6 and 1 respectively. Calculate Digit Verification of CAS Registry Number 6928-61: (6*6)+(5*9)+(4*2)+(3*8)+(2*6)+(1*1)=126 126 % 10 = 6 So 6928-61-6 is a valid CAS Registry Number.