4,5,6,7-tetrahydrocyclopenta[b]pyran-2(3H)-one is a heterocyclic organic compound with a unique structure. It consists of a cyclopentane ring fused to a pyran ring, with the pyran ring containing an oxygen atom. The compound is characterized by its molecular formula C6H10O2 and a molecular weight of 114.14 g/mol. It is a colorless liquid with a density of 1.07 g/cm3 and a boiling point of 95-97°C at 1 atm. 4,5,6,7-tetrahydrocyclopentapyran-2(3H)-one is synthesized through various chemical reactions and is used as an intermediate in the production of pharmaceuticals, agrochemicals, and other specialty chemicals. Due to its complex structure and potential applications, 4,5,6,7-tetrahydrocyclopenta[b]pyran-2(3H)-one has attracted interest in the field of organic chemistry and drug development.
The CAS Registry Mumber 5587-71-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,8 and 7 respectively; the second part has 2 digits, 7 and 1 respectively. Calculate Digit Verification of CAS Registry Number 5587-71: (6*5)+(5*5)+(4*8)+(3*7)+(2*7)+(1*1)=123 123 % 10 = 3 So 5587-71-3 is a valid CAS Registry Number.