Benedict's qualitative reagent for glucose
E470215
Benedict's qualitative reagent for glucose is a chemical solution used in clinical and laboratory settings to detect and estimate reducing sugars, particularly glucose, through a characteristic color change upon heating.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Benedict's qualitative reagent for glucose canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4788431 — 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 qualitative reagent for glucose Context triple: [Stanley Rossiter Benedict, notableWork, Benedict's qualitative reagent for glucose]
-
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.
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B.
Sakkarin
Sakkarin is the stage name used by British singer, songwriter, and record producer Jonathan King.
-
C.
Lextran
Lextran is the public bus transit system serving Lexington and surrounding areas in Fayette County, Kentucky.
-
D.
Lowenstein–Jensen medium
Lowenstein–Jensen medium is a specialized egg-based solid growth medium used primarily for the isolation and cultivation of Mycobacterium species, especially Mycobacterium tuberculosis, in clinical microbiology.
-
E.
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.
- 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 qualitative reagent for glucose Target entity description: Benedict's qualitative reagent for glucose is a chemical solution used in clinical and laboratory settings to detect and estimate reducing sugars, particularly glucose, 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.
Sakkarin
Sakkarin is the stage name used by British singer, songwriter, and record producer Jonathan King.
-
C.
Lextran
Lextran is the public bus transit system serving Lexington and surrounding areas in Fayette County, Kentucky.
-
D.
Lowenstein–Jensen medium
Lowenstein–Jensen medium is a specialized egg-based solid growth medium used primarily for the isolation and cultivation of Mycobacterium species, especially Mycobacterium tuberculosis, in clinical microbiology.
-
E.
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.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
chemical reagent
ⓘ
diagnostic reagent ⓘ qualitative analytical reagent ⓘ |
| alsoKnownAs | Benedict's reagent NERFINISHED ⓘ |
| appearance | blue solution ⓘ |
| brickRedPrecipitateIndicates | high concentration of reducing sugar ⓘ |
| carbonateRole | provides alkaline medium ⓘ |
| citrateRole | complexes copper(II) ions ⓘ |
| colorChange |
blue to brick-red
ⓘ
blue to green ⓘ blue to orange ⓘ blue to yellow ⓘ |
| colorIndicates | approximate concentration of reducing sugar ⓘ |
| containsIon | Cu2+ ⓘ |
| detects |
fructose
ⓘ
glucose ⓘ lactose ⓘ maltose ⓘ reducing sugars ⓘ |
| doesNotDetect | most non-reducing sugars without prior hydrolysis ⓘ |
| forms | cuprous oxide precipitate ⓘ |
| greenColorIndicates | low concentration of reducing sugar ⓘ |
| hasComponent |
copper(II) sulfate pentahydrate
ⓘ
sodium carbonate ⓘ sodium citrate ⓘ |
| hazard |
alkaline irritant
ⓘ
contains copper salts ⓘ |
| mechanism | reduction of Cu2+ to Cu+ ⓘ |
| namedAfter | Stanley Rossiter Benedict NERFINISHED ⓘ |
| pH | alkaline ⓘ |
| reactionType | redox reaction ⓘ |
| replacedBy | enzymatic glucose assays in many clinical laboratories ⓘ |
| requires | heating with sample ⓘ |
| sampleType |
biological fluids
ⓘ
urine ⓘ |
| solvent | water ⓘ |
| stabilizedBy | sodium citrate ⓘ |
| storageCondition |
protected from contamination
ⓘ
tightly stoppered bottle ⓘ |
| usedFor |
detection of glucose
ⓘ
detection of reducing sugars ⓘ semi-quantitative estimation of reducing sugars ⓘ |
| usedIn |
biochemistry laboratories
ⓘ
clinical laboratories ⓘ educational laboratories ⓘ |
| usedInTest | Benedict's test NERFINISHED ⓘ |
| yellowToOrangeColorIndicates | moderate concentration of reducing sugar ⓘ |
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 qualitative reagent for glucose Description of subject: Benedict's qualitative reagent for glucose is a chemical solution used in clinical and laboratory settings to detect and estimate reducing sugars, particularly glucose, through a characteristic color change upon heating.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.