Research any topic before you write.
Find related topics. | Discover entities. | See connections. | Build a topical map.
The METLIN Metabolite and Chemical Entity Database is the largest repository of experimental tandem mass spectrometry and neutral loss data acquired from standards. The tandem mass spectrometry data on over 960,000 molecular standards (as of October, 2025) is provided to facilitate the identification of chemical entities from tandem mass spectrometry…
Standards & Technology
Explore the main themes, entities and connections around METLIN. Start with the topic map, then use the sections below for research and deeper semantic analysis.
Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Browse the full topic structure. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
See the strongest relationship patterns around the current topic before diving into the raw triples.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
data mass tandem chemical spectrometry database standards neutral loss identification repository entities searching website entity multiple molecular metabolite designed also
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| METLIN | Description | repository of chemical entity information as well as tandem mass spectrometry data | 1.00 | infobox |
| METLIN | Laboratory | Siuzdak laboratory at The Scripps Research Institute | 1.00 | infobox |
| METLIN | Release date | 2005 | 1.00 | infobox |
| METLIN | Research center | The Scripps Research Institute | 1.00 | infobox |
| METLIN | Website | metlin.scripps.edu | 1.00 | infobox |
| the Kyoto Encyclopedia of Genes | instance of | Each molecule is linked to outside resources | 0.80 | text |
| Genomes | instance of | Each molecule is linked to outside resources | 0.80 | text |
| accurate mass | instance of | The METLIN interface allows researchers to readily search the database and characterize metabolites and other compounds through features | 0.80 | text |
| single | instance of | The METLIN interface allows researchers to readily search the database and characterize metabolites and other compounds through features | 0.80 | text |
| multiple fragment searching | instance of | The METLIN interface allows researchers to readily search the database and characterize metabolites and other compounds through features | 0.80 | text |
| neutral loss | instance of | The METLIN interface allows researchers to readily search the database and characterize metabolites and other compounds through features | 0.80 | text |
| full spectrum search capabilities | instance of | The METLIN interface allows researchers to readily search the database and characterize metabolites and other compounds through features | 0.80 | text |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.