2,2,5,5-tetramethylcyclopentanecarbonyl chloride is an organic compound with the chemical formula C11H20ClO. It is a colorless liquid with a molecular weight of 200.73 g/mol. 2,2,5,5-tetramethylcyclopentanecarbonyl chloride is characterized by its cyclopentane ring structure, which is substituted with four methyl groups at the 2, 2, 5, and 5 positions, and a carbonyl chloride functional group. It is synthesized through the reaction of 2,2,5,5-tetramethylcyclopentanol with phosgene or thionyl chloride. 2,2,5,5-tetramethylcyclopentanecarbonyl chloride is used as an intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other specialty chemicals due to its unique structure and reactivity. It is also known for its stability and resistance to hydrolysis, making it a valuable building block in organic synthesis.
The CAS Registry Mumber 96188-83-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,6,1,8 and 8 respectively; the second part has 2 digits, 8 and 3 respectively. Calculate Digit Verification of CAS Registry Number 96188-83: (7*9)+(6*6)+(5*1)+(4*8)+(3*8)+(2*8)+(1*3)=179 179 % 10 = 9 So 96188-83-9 is a valid CAS Registry Number.