ninhydrin

chemical compound

Class type of: indanes Q421098

Facts

9 properties

Instance of: type of chemical entity
Subclass of: indanes
Has use: indicators and reagents^[5]
Canonical SMILES: C1=CC=C2C(=C1)C(=O)C(C2=O)(O)O^[3]
Chemical formula: C₉H₆O₄^[4]
Has part(s): oxygen, carbon^[6]^[7]
Mass: +178.027^[8]
P14541: 2YjCoP^[10]
Subject has role: radiosensitizer^[9]

🏷️ Also known as

en 1,2,3-Indantrione monohydrate en Triketohydrindene hydrate en ninhydrin en 2,2-Dihydroxyindane-1,3-dione en 2,2-Dihydroxy-1,3-indandione en 1,2,3-Indantrione, 2-hydrate ar نينهيدرين de 2,2-Dihydroxyindan-1,3-dion de Ninhydrinreaktion de Ninhydrin-Probe el Νινυδρίνη es Ninhidrina fa نینهیدرین fi ninhydriini fr 485-47-2 fr Ninhydrine it Ninidrina ja ニンヒドリン ja ニンヒドリン反応 ko 닌히드린

🔖 Identifiers · 34

OpenAlex ID: C2778944976
CAMEO Chemicals ID: 20739
CAS Registry Number: 485-47-2
ChEBI ID: 86374
ChEMBL ID: CHEMBL1221925
ChemSpider ID: 9819
CosIng number: 57413
DSSTOX compound identifier: DTXCID605716
DSSTox substance ID: DTXSID7025716
EC number: 207-618-1
ECHA Substance Infocard ID: 100.006.926
Elhuyar ZTH ID: 133440

Show all 34 identifiers +22

Encyclopedia of China (Third Edition) ID: 156822
Freebase ID: /m/032rgk
Gran Enciclopèdia Catalana ID: ninhidrina
Gran Enciclopèdia Catalana ID (former scheme): 0126362
Great Norwegian Encyclopedia ID: ninhydrin
Human Metabolome Database ID: HMDB0255614
ICSC ID: 0766
InChI: InChI=1S/C9H6O4/c10-7-5-3-1-2-4-6(5)8(11)9(7,12)13/h1-4,12-13H
InChIKey: FEMOMIGRRWSMCU-UHFFFAOYSA-N
MeSH descriptor ID: D009555
MeSH tree code: D02.455.426.559.847.486.487.500, D04.615.486.487.500
Microsoft Academic ID (discontinued): 2778944976
NMRShiftDB structure ID: 20097607
Probes And Drugs ID: PD119090
PubChem CID: 10236
Reaxys registry number: 1910963
Römpp online ID: RD-14-01238
SureChEMBL ID: 17986
UMLS CUI: C0028098
UNII: HCL6S9K23A
UniChem compound ID: 657977
ZVG number: 104160

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections

Has part(s) 2

oxygen, carbon

Subject has role 1

radiosensitizer

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Summary

ninhydrin is a type of chemical entity^[1]. ninhydrin is a type of indanes^[2].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

[3] ↑ ninhydrin — canonical SMILES (P233): C1=CC=C2C(=C1)C(=O)C(C2=O)(O)O. PubChem. Retrieved 2016-10-09. wikidata.org.
[4] ↑ ninhydrin — chemical formula (P274): C₉H₆O₄. PubChem. Retrieved 2016-10-09. wikidata.org.
[2] ↑ ninhydrin — subclass of (P279): indanes. wikidata.org.
[5] ↑ ninhydrin — has use (P366): indicators and reagents. Medical Subject Headings. Retrieved 2018-03-15. wikidata.org.
[6] ↑ ninhydrin — has part(s) (P527): oxygen. wikidata.org.
[7] ↑ ninhydrin — has part(s) (P527): carbon. wikidata.org.
[8] ↑ ninhydrin — mass (P2067): 178.027 dalton. PubChem. Retrieved 2016-10-09. wikidata.org.
[9] ↑ ninhydrin — subject has role (P2868): radiosensitizer. Medical Subject Headings. Retrieved 2018-03-15. wikidata.org.
[10] ↑ ninhydrin — P14541 (P14541): 2YjCoP. wikidata.org.

Class ancestry

[1] ↑ ninhydrin is an instance of type of chemical entity (Q113145171) [P31, primary]. Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). ninhydrin. Retrieved November 2, 2026, from https://4ort.xyz/entity/ninhydrin

MLA “ninhydrin.” 4ort.xyz Knowledge Graph, 4ort.xyz, 2 Nov. 2026, https://4ort.xyz/entity/ninhydrin.

BibTeX

@misc{4ortxyz_ninhydrin_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{ninhydrin}}, year = {2026}, url = {https://4ort.xyz/entity/ninhydrin}, note = {Accessed: 2026-11-02}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): ninhydrin — https://4ort.xyz/entity/ninhydrin (retrieved 2026-11-02)

Canonical URL: https://4ort.xyz/entity/ninhydrin · Last refreshed: November 2, 2026

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

4d ago · DDadyka · 2026-11-01 view diff on Wikidata ↗

Sitelink count → 26

Wikipedia languages → ['ar', 'azb', 'commons', 'cs', 'de', 'el', 'en', 'es', 'et', 'fa', 'fi', 'fr', '

"/* wbsetlabel-add:1|uk */ Нінгідрин"
16w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗

P14541 → 2YjCoP

"/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
19w ago · Nabbegat · 2026-06-19 view diff on Wikidata ↗

Has parts → —

Instance of → type of chemical entity

Subclass of → —

Aliases → —

+ 6 other properties edited (see Wikidata diff for full list)

"/* wbeditentity-update-languages-short:0||tr */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/37300|batch #37300]]"

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