We'd like to use analytics cookies to understand which symbols people look up, so we know what to research next. They are not used for advertising and we set none of them unless you say yes. What we store.
A flat ring drawn in perspective with substituents up or down.
Also known as: Haworth formula, Haworth diagram, Flat sugar ring
A Haworth projection draws a sugar ring as a flat hexagon seen edge-on, with the thick edge nearest the viewer and substituents pointing straight up or down. It is deliberately wrong about shape — real rings are puckered — and right about which side each group is on.
Denotes a cyclic sugar drawn as a planar ring in perspective, with substituents shown above or below the ring plane.
Contexts: Laboratory
Misrepresents the ring as flat when it is actually puckered, a simplification accepted because it shows configuration clearly.
Contexts: Laboratory
Is drawn with the near edge thickened, and the ring oxygen conventionally at the top right for pyranoses.
Contexts: Laboratory
A hexagon or pentagon drawn as a flattened ring seen edge-on, its lower edge thickened, with short vertical bonds above and below.