Fischer projection
E180490
The Fischer projection is a two-dimensional representation used in organic chemistry to depict the three-dimensional stereochemistry of molecules, especially carbohydrates and amino acids.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fischer projection canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1586894 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Fischer projection Context triple: [Emil Fischer, knownFor, Fischer projection]
-
A.
Dowker–Thistlethwaite notation
Dowker–Thistlethwaite notation is a numerical encoding system used in knot theory to uniquely represent knot diagrams and facilitate their classification and study.
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B.
Feigl
Feigl is a German-language surname borne by various notable individuals, including philosophers, scientists, and artists.
-
C.
Alexander–Briggs notation
Alexander–Briggs notation is a classical system for naming and classifying knots in knot theory, assigning each distinct knot a unique label based on its crossing number and order in knot tables.
-
D.
Whyte notation
Whyte notation is a system for classifying steam locomotives by their wheel arrangement using a sequence of numbers separated by hyphens.
-
E.
Schiff
Schiff is a surname most prominently associated with American actor Richard Schiff, known for his role as Toby Ziegler on the television series "The West Wing."
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Fischer projection Target entity description: The Fischer projection is a two-dimensional representation used in organic chemistry to depict the three-dimensional stereochemistry of molecules, especially carbohydrates and amino acids.
-
A.
Dowker–Thistlethwaite notation
Dowker–Thistlethwaite notation is a numerical encoding system used in knot theory to uniquely represent knot diagrams and facilitate their classification and study.
-
B.
Feigl
Feigl is a German-language surname borne by various notable individuals, including philosophers, scientists, and artists.
-
C.
Alexander–Briggs notation
Alexander–Briggs notation is a classical system for naming and classifying knots in knot theory, assigning each distinct knot a unique label based on its crossing number and order in knot tables.
-
D.
Whyte notation
Whyte notation is a system for classifying steam locomotives by their wheel arrangement using a sequence of numbers separated by hyphens.
-
E.
Schiff
Schiff is a surname most prominently associated with American actor Richard Schiff, known for his role as Toby Ziegler on the television series "The West Wing."
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
chemical notation
ⓘ
stereochemical projection ⓘ two-dimensional representation ⓘ |
| appliesTo |
open-chain forms of sugars
ⓘ
tetrahedral stereocenters ⓘ |
| category |
chemical drawing convention
ⓘ
stereochemical representation system ⓘ |
| developedBy | Emil Fischer ⓘ |
| developedFor | systematic representation of sugar stereochemistry ⓘ |
| field | organic chemistry ⓘ |
| hasConstraint |
cannot be freely rotated in the plane without changing configuration meaning
ⓘ
not suitable for representing cyclic conformations accurately ⓘ rotation by 180 degrees in the plane preserves configuration ⓘ rotation by 90 degrees in the plane inverts stereochemistry ⓘ |
| hasConvention |
D and L notation is based on orientation of substituents around the reference carbon
ⓘ
horizontal substituents are considered toward the observer ⓘ vertical substituents are considered away from the observer ⓘ |
| hasFeature |
assumes viewer is in front of the plane of the paper
ⓘ
carbon chain is drawn vertically ⓘ chiral centers are represented at line intersections ⓘ does not explicitly show wedge and dash bonds ⓘ horizontal lines represent bonds coming out toward the viewer ⓘ most oxidized carbon is placed at the top ⓘ uses cross-like representation for tetrahedral centers ⓘ vertical lines represent bonds going away from the viewer ⓘ |
| namedAfter | Emil Fischer ⓘ |
| relatedTo |
Haworth projection
ⓘ
sawhorse projection ⓘ
surface form:
Newman projection
sawhorse projection ⓘ wedge-and-dash notation ⓘ |
| timePeriod | late 19th century ⓘ |
| usedFor |
assigning R and S configuration
ⓘ
comparing stereoisomers ⓘ depicting three-dimensional stereochemistry ⓘ distinguishing diastereomers ⓘ distinguishing enantiomers ⓘ drawing aldoses ⓘ drawing ketoses ⓘ drawing monosaccharides ⓘ representing amino acids ⓘ representing carbohydrates ⓘ representing chiral centers ⓘ |
| usedIn |
biochemistry
ⓘ
carbohydrate chemistry ⓘ configuration assignment of D and L sugars ⓘ configuration assignment of amino acids ⓘ stereochemistry education ⓘ textbook representations of sugars ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Fischer projection Description of subject: The Fischer projection is a two-dimensional representation used in organic chemistry to depict the three-dimensional stereochemistry of molecules, especially carbohydrates and amino acids.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.