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Qualifier English: chemistry
Qualifier Spanish: química
Descriptor química
Scope note: Usado con sustancias químicas y sustancias biológicas y no biológicas, para su composición, estructura, caracterización y propiedades. Usado también para la composición química o el contenido de órganos, tejidos, tumores, fluidos corporales, organismos y plantas. Excluye el análisis químico y la determinación de sustancias, para los que se usa /análisis. Excluye la síntesis, para la que se usa "/síntesis química". Excluye el aislamiento y purificación de sustancias para los que se usa "/aislamiento & purificación".
Qualifier Portuguese: química
Qualifier French: composition chimique
Entry term(s): chemical characterization
chemical composition
chemical content
chemical properties
chemical structure
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/Q000737
Scope note: Used with chemicals, biological, and non-biological substances for their composition, structure, characterization, and properties; also used for the chemical composition or content of organs, tissue, tumors, body fluids, organisms, and plants. Excludes chemical analysis and determination of substances for which "analysis" is used; excludes synthesis for which "chemical synthesis" is used; excludes isolation and purification of substances for which "isolation & purification" is used.
Annotation: subhead only; includes "chemical structure", "chemical composition", "chemical properties" or "chemical characterization"; includes "chemical composition" or "chemical content" of organs & tissues, organisms & plants; not for chemical analysis or determination ( = /analysis) nor chemical synthesis or manufacture ( = /chemical synthesis) nor chemical isolation or purification ( = /isolation & purification); see MeSH scope note in Introduction; indexing policy: Manual 19.8.15; DF: /chem or /CH
Allowable Qualifiers: No qualifiers
Online Note: search policy: Online Manual; use main heading/CH or CH (SH) or SUBS APPLY CH
History Note: 91; used with Category A2-16, C4 & D 1991; A2-16, B1, B3-6, C4 & D 1992 forward
Entry Version: CHEM
Abbreviation: CH
DeCS ID: 29165
Unique ID: Q000737
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1991/01/01
Date of Entry: 1990/08/29
Revision Date: 2003/07/24
chemistry - Preferred
Concept UI M0030905
Scope note Used with chemicals, biological, and non-biological substances for their composition, structure, characterization, and properties; also used for the chemical composition or content of organs, tissue, tumors, body fluids, organisms, and plants. Excludes chemical analysis and determination of substances for which "analysis" is used; excludes synthesis for which "chemical synthesis" is used; excludes isolation and purification of substances for which "isolation & purification" is used.
Preferred term chemistry
chemical structure - Narrower
Concept UI M0030906
Preferred term chemical structure
chemical content - Narrower
Concept UI M0030909
Preferred term chemical content
chemical properties - Narrower
Concept UI M0030910
Preferred term chemical properties
chemical characterization - Narrower
Concept UI M0030907
Preferred term chemical characterization
chemical composition - Narrower
Concept UI M0030908
Preferred term chemical composition



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