{"id":"https://openalex.org/W2090789334","doi":"https://doi.org/10.3891/acta.chem.scand.19-1661","title":"Triterpenes and 4alpha-Methylsterols in Birch Wood.","display_name":"Triterpenes and 4alpha-Methylsterols in Birch Wood.","publication_year":1965,"publication_date":"1965-01-01","ids":{"openalex":"https://openalex.org/W2090789334","doi":"https://doi.org/10.3891/acta.chem.scand.19-1661","mag":"2090789334"},"language":"en","primary_location":{"id":"doi:10.3891/acta.chem.scand.19-1661","doi":"https://doi.org/10.3891/acta.chem.scand.19-1661","is_oa":true,"landing_page_url":"https://doi.org/10.3891/acta.chem.scand.19-1661","pdf_url":"http://actachemscand.org/pdf/acta_vol_19_p1661-1666.pdf","source":{"id":"https://openalex.org/S169444596","display_name":"Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry","issn_l":"0001-5393","issn":["0001-5393","0302-4369","0302-4377","0904-213X","0904-6437","0904-6445","1902-3103"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310320556","host_organization_name":"Royal Society of Chemistry","host_organization_lineage":["https://openalex.org/P4310320556"],"host_organization_lineage_names":["Royal Society of Chemistry"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acta Chemica Scandinavica","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"http://actachemscand.org/pdf/acta_vol_19_p1661-1666.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5107352249","display_name":"Jan Bergman","orcid":"https://orcid.org/0000-0003-0190-5541","observed_orcids":["https://orcid.org/0000-0003-0190-5541"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Jan Bergman","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024921897","display_name":"BENGT O. LINDGREN","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Bengt O. Lindgren","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021864283","display_name":"Carl Magnus Svahn","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Carl Magnus Svahn","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050642274","display_name":"Olof Mellander","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Olof Mellander","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5004520146","display_name":"Merv Hinton","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Merv Hinton","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":6.9054,"has_fulltext":false,"cited_by_count":60,"citation_normalized_percentile":{"value":0.98598464,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"19","issue":null,"first_page":"1661","last_page":"1666"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11385","display_name":"Natural product bioactivities and synthesis","score":0.5425000190734863,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11385","display_name":"Natural product bioactivities and synthesis","score":0.5425000190734863,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10484","display_name":"Wood Treatment and Properties","score":0.12919999659061432,"subfield":{"id":"https://openalex.org/subfields/2215","display_name":"Building and Construction"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11882","display_name":"Plant biochemistry and biosynthesis","score":0.09239999949932098,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/triterpenoids","display_name":"triterpenoids","score":0.9940000176429749},{"id":"https://openalex.org/keywords/birch-wood","display_name":"birch wood","score":0.9890000224113464},{"id":"https://openalex.org/keywords/betula","display_name":"Betula","score":0.7289999723434448},{"id":"https://openalex.org/keywords/wood-chemistry","display_name":"wood chemistry","score":0.6029999852180481},{"id":"https://openalex.org/keywords/natural-products","display_name":"natural products","score":0.3889999985694885}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.8745094537734985},{"id":"https://openalex.org/C44937612","wikidata":"https://www.wikidata.org/wiki/Q212364","display_name":"Terpene","level":2,"score":0.7982751131057739},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.4196012616157532},{"id":"https://openalex.org/C71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","level":1,"score":0.19866499304771423},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.03808608651161194}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.3891/acta.chem.scand.19-1661","doi":"https://doi.org/10.3891/acta.chem.scand.19-1661","is_oa":true,"landing_page_url":"https://doi.org/10.3891/acta.chem.scand.19-1661","pdf_url":"http://actachemscand.org/pdf/acta_vol_19_p1661-1666.pdf","source":{"id":"https://openalex.org/S169444596","display_name":"Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry","issn_l":"0001-5393","issn":["0001-5393","0302-4369","0302-4377","0904-213X","0904-6437","0904-6445","1902-3103"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310320556","host_organization_name":"Royal Society of Chemistry","host_organization_lineage":["https://openalex.org/P4310320556"],"host_organization_lineage_names":["Royal Society of Chemistry"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acta Chemica Scandinavica","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.3891/acta.chem.scand.19-1661","doi":"https://doi.org/10.3891/acta.chem.scand.19-1661","is_oa":true,"landing_page_url":"https://doi.org/10.3891/acta.chem.scand.19-1661","pdf_url":"http://actachemscand.org/pdf/acta_vol_19_p1661-1666.pdf","source":{"id":"https://openalex.org/S169444596","display_name":"Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry","issn_l":"0001-5393","issn":["0001-5393","0302-4369","0302-4377","0904-213X","0904-6437","0904-6445","1902-3103"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310320556","host_organization_name":"Royal Society of Chemistry","host_organization_lineage":["https://openalex.org/P4310320556"],"host_organization_lineage_names":["Royal Society of Chemistry"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acta Chemica Scandinavica","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2090789334.pdf"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2082387073","https://openalex.org/W2024775089","https://openalex.org/W2316122993","https://openalex.org/W2059129118","https://openalex.org/W2070991162","https://openalex.org/W1997529555","https://openalex.org/W1978950056","https://openalex.org/W2008195311","https://openalex.org/W2466798282","https://openalex.org/W1996416033"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2016-06-24T00:00:00"}