Benedict's reagent
E470213
Benedict's reagent is a chemical solution used in analytical chemistry to detect the presence of reducing sugars through a characteristic color change upon heating.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Benedict's reagent canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T4788420 — 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: Benedict's reagent Context triple: [Stanley Rossiter Benedict, knownFor, Benedict's reagent]
-
A.
Sherbert test
The Sherbert test is a U.S. constitutional law standard that evaluates whether government actions improperly burden an individual's free exercise of religion by requiring a compelling interest pursued through the least restrictive means.
-
B.
Ziehl–Neelsen stain
Ziehl–Neelsen stain is a classic acid-fast staining technique used in microbiology to visualize Mycobacterium species, especially Mycobacterium tuberculosis, in clinical specimens.
-
C.
Corey–Chaykovsky reagent
The Corey–Chaykovsky reagent is an organosulfur ylide reagent widely used in organic synthesis to convert carbonyl compounds into epoxides and aziridines.
-
D.
Lextran
Lextran is the public bus transit system serving Lexington and surrounding areas in Fayette County, Kentucky.
-
E.
Schottenstift
Schottenstift is a historic Benedictine monastery and church complex in Vienna, Austria, known for its medieval origins and significant cultural and architectural heritage.
- 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: Benedict's reagent Target entity description: Benedict's reagent is a chemical solution used in analytical chemistry to detect the presence of reducing sugars through a characteristic color change upon heating.
-
A.
Sherbert test
The Sherbert test is a U.S. constitutional law standard that evaluates whether government actions improperly burden an individual's free exercise of religion by requiring a compelling interest pursued through the least restrictive means.
-
B.
Ziehl–Neelsen stain
Ziehl–Neelsen stain is a classic acid-fast staining technique used in microbiology to visualize Mycobacterium species, especially Mycobacterium tuberculosis, in clinical specimens.
-
C.
Corey–Chaykovsky reagent
The Corey–Chaykovsky reagent is an organosulfur ylide reagent widely used in organic synthesis to convert carbonyl compounds into epoxides and aziridines.
-
D.
Lextran
Lextran is the public bus transit system serving Lexington and surrounding areas in Fayette County, Kentucky.
-
E.
Schottenstift
Schottenstift is a historic Benedictine monastery and church complex in Vienna, Austria, known for its medieval origins and significant cultural and architectural heritage.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
analytical reagent
ⓘ
chemical reagent ⓘ |
| advantageOverFehling | greater stability on storage ⓘ |
| alkalinityProvidedBy | sodium carbonate ⓘ |
| colorChange |
blue to brick-red
ⓘ
blue to green ⓘ blue to orange ⓘ blue to yellow ⓘ |
| comparedWith | Fehling's solution ⓘ |
| containsIon |
carbonate ion
ⓘ
citrate ion ⓘ sulfate ion ⓘ |
| developedBy | Stanley Rossiter Benedict ⓘ |
| formsProduct |
Cu2O
ⓘ
red precipitate of copper(I) oxide ⓘ |
| hasActiveSpecies | Cu2+ ion ⓘ |
| hasColor | blue ⓘ |
| hasComponent |
copper(II) sulfate
ⓘ
sodium carbonate ⓘ sodium citrate ⓘ |
| haspH | alkaline ⓘ |
| hasState | aqueous solution ⓘ |
| hazard | irritant ⓘ |
| indicates | presence of reducing sugar by brick-red precipitate ⓘ |
| notReactiveWith |
most non-reducing sugars
ⓘ
sucrose (without prior hydrolysis) ⓘ |
| reactsWith |
aldehyde groups in sugars
ⓘ
alpha-hydroxy ketone groups in sugars ⓘ reducing sugars ⓘ |
| redoxProcess |
Cu2+ reduced to Cu+ by reducing sugar
ⓘ
reducing sugar oxidized to corresponding carboxylic acid ⓘ |
| requires | alkaline medium ⓘ |
| requiresCondition | heating ⓘ |
| semiQuantitative | yes ⓘ |
| semiQuantitativeFor | approximate concentration of reducing sugars ⓘ |
| stabilizedBy | sodium citrate ⓘ |
| storageForm | ready-to-use solution ⓘ |
| testName |
Benedict's test
ⓘ
linked to:
Benedict's qualitative reagent for glucose
|
| undergoesChange | color change on heating with reducing sugars ⓘ |
| usedFor | detection of reducing sugars ⓘ |
| usedIn |
analytical chemistry
ⓘ
clinical biochemistry ⓘ educational laboratory experiments ⓘ urine sugar testing ⓘ |
| usedOn |
fructose
ⓘ
glucose ⓘ lactose ⓘ maltose ⓘ |
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: Benedict's reagent Description of subject: Benedict's reagent is a chemical solution used in analytical chemistry to detect the presence of reducing sugars through a characteristic color change upon heating.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.