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Heptyl acetate (C 9 H 18 O 2), also known as acetate C-7, [citation needed] is a colorless alcohol-soluble liquid that is the ester formed by the condensation of 1-heptanol and acetic acid. Heptyl acetate is used as a fruit essence flavoring in foods and as a scent in perfumes. It has a woody, fruity, rumlike odor and a spicy, floral taste with ...
PubChem can be accessed for free through a web user interface. Millions of compound structures and descriptive datasets can be freely downloaded via FTP. PubChem contains multiple substance descriptions and small molecules with fewer than 100 atoms and 1,000 bonds. More than 80 database vendors contribute to the growing PubChem database. [2]
4-Fluorobutyrylfentanyl (also known as 4-FBF and p-FBF or para-fluorobutyrylfentanyl) is an opioid analgesic that is an analog of butyrfentanyl and has been sold online as a designer drug. [ 1 ] [ 2 ] It is closely related to 4-fluorofentanyl , which has an EC 50 value of 4.2 nM for the human μ-opioid receptor .
A notable molecule editor is a computer program for creating and modifying representations of chemical structures. Molecule editors can manipulate chemical structure representations in either a simulated two-dimensional space or three-dimensional space , via 2D computer graphics or 3D computer graphics , respectively.
In organic synthesis, PPTS is used as a weakly acidic catalyst, providing an organic soluble source of pyridinium (C 5 H 5 NH +) ions.For example, PPTS is used to deprotect silyl ethers or tetrahydropyranyl ethers when a substrate is unstable to stronger acid catalysts.
3,9-Divinyl-2,4,8,10-tetraoxaspiro[5.5]undecane is without impurity a white crystalline powder. [1] However, DVTOSU is often sold as a liquid, due to its low crystallization tendency. [ 9 ] The highly variable data on yields and boiling points during the first fractionated distillation indicate by-products, e.g. by rearrangement of the double ...
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