3,4,4a,5,6,7-hexahydro-chromen-2-one is a chemical compound belonging to the class of organic molecules, specifically a type of heterocyclic compound known as a chromanone. 3,4,4a,5,6,7-hexahydro-chromen-2-one features a six-membered ring structure with a single oxygen atom in the 2-position, and the remaining carbon atoms are partially saturated, as indicated by the "hexahydro" prefix. The numbering of the carbon atoms in the compound's name reflects the positions of the hydrogen atoms that have been removed to form the double bonds, with the "a" indicating the position of a hydrogen atom on a bridge between two carbon atoms. 3,4,4a,5,6,7-hexahydro-chromen-2-one is of interest in organic chemistry and may have potential applications in the synthesis of various pharmaceuticals and natural products due to its unique structure and properties.
The CAS Registry Mumber 4444-75-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,4 and 4 respectively; the second part has 2 digits, 7 and 5 respectively. Calculate Digit Verification of CAS Registry Number 4444-75: (6*4)+(5*4)+(4*4)+(3*4)+(2*7)+(1*5)=91 91 % 10 = 1 So 4444-75-1 is a valid CAS Registry Number.