{"kind":"compound","id":"follistatin-344","name":"Follistatin 344","url":"https://costides.us/us/research/follistatin-344","last_verified":"2026-08-21","identity":{"cas":null,"formula":null,"mw":null,"sequence":null,"sequence_3letter":null,"residues":null,"pubchem":null,"identity_note":null,"parent_ligand":null},"chunks":[{"id":"lead-follistatin-344","type":"definition","heading":"What is Follistatin 344?","text":"Follistatin 344 (FST344) is a Research Use Only chemical-identity and literature reference on Costides, not for human or veterinary use. Structure-specific registry identity fields are not published for this monograph. It is indexed as Follistatin-344 (FST344) activin-binding glycoprotein isoform studied in muscle and reproductive models; distinct from native follistatin CAS mappings; structure-specific PubChem CID not resolved.","words":56},{"id":"def-follistatin-344","type":"definition","heading":"Follistatin 344 overview","text":"Follistatin 344 (FST344) is a Research Use Only chemical-identity and literature reference on Costides, not for human or veterinary use. Structure-specific registry identity fields are not published for this monograph. It is indexed as Follistatin-344 (FST344) activin-binding glycoprotein isoform studied in muscle and reproductive models; distinct from native follistatin CAS mappings; structure-specific PubChem CID not resolved. Synonyms and vendor codes indexed here include FST344, FST-344, Follistatin-344. Chemical identity fields appear.","words":70},{"id":"id-follistatin-344","type":"identity","heading":"Follistatin 344 chemical identity","text":"Follistatin 344 chemical identity fields were not retrieved for this monograph.","words":11},{"id":"policy-follistatin-344","type":"policy","heading":"Research Use Only","text":"Research Use Only. Not for human or veterinary use. This page indexes chemical identity and citations. It is not medical advice and does not describe administration or dosing.","words":28},{"id":"pass-what-follistatin-344","type":"definition","heading":"What is Follistatin 344?","text":"Follistatin 344 (FST344) is a Research Use Only chemical-identity and literature reference on Costides, not for human or veterinary use. Structure-specific registry identity fields are not published for this monograph. It is indexed as Follistatin-344 (FST344) activin-binding glycoprotein isoform studied in muscle and reproductive models; distinct from native follistatin CAS mappings; structure-specific PubChem CID not resolved.","words":56},{"id":"pass-human-follistatin-344","type":"definition","heading":"Is Follistatin 344 for human use?","text":"No. Follistatin 344 (FST344) pages on Costides are Research Use Only reference materials. They are not medical advice and do not describe administration or dosing.","words":25},{"id":"pass-cas-follistatin-344","type":"definition","heading":"What is the CAS number of Follistatin 344?","text":"A CAS number for Follistatin 344 (FST344) was not retrieved for this Costides monograph.","words":14},{"id":"faq-follistatin-344-1","type":"faq","heading":"What is Follistatin 344?","text":"Follistatin 344 (FST344) is a Research Use Only chemical-identity and literature reference on Costides, not for human or veterinary use. Structure-specific registry identity fields are not published for this monograph. It is indexed as Follistatin-344 (FST344) activin-binding glycoprotein isoform studied in muscle and reproductive models; distinct from native follistatin CAS mappings; structure-specific PubChem CID not resolved. Research Use Only. Not for human or veterinary use.","words":65},{"id":"faq-follistatin-344-2","type":"faq","heading":"What is the CAS number of Follistatin 344?","text":"A CAS number for Follistatin 344 (FST344) was not retrieved for this Costides monograph.","words":14},{"id":"faq-follistatin-344-3","type":"faq","heading":"Is Follistatin 344 for human use?","text":"No. Follistatin 344 (FST344) pages on Costides are Research Use Only reference materials. They are not medical advice and do not describe administration or dosing.","words":25},{"id":"faq-follistatin-344-4","type":"faq","heading":"Can I buy Follistatin 344 from Costides?","text":"No. Follistatin 344 is not offered for sale on Costides.","words":10},{"id":"faq-follistatin-344-5","type":"faq","heading":"Where does identity data for Follistatin 344 come from?","text":"Costides indexes registry and bibliographic sources (PubChem, CAS Common Chemistry, PubMed permalinks) when available. Outcome or efficacy claims are not restated on this page.","words":24},{"id":"cite-follistatin-344-1","type":"citation","heading":"Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance.","text":"Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance.. PMID 41966639. https://pubmed.ncbi.nlm.nih.gov/41966639/","words":18},{"id":"cite-follistatin-344-2","type":"citation","heading":"DOI for PMID 41966639","text":"DOI for PMID 41966639. PMID 41966639. https://doi.org/10.1007/s40279-026-02437-0","words":7},{"id":"cite-follistatin-344-3","type":"citation","heading":"Detection of black market follistatin 344.","text":"Detection of black market follistatin 344.. PMID 33460286. https://pubmed.ncbi.nlm.nih.gov/33460286/","words":9},{"id":"cite-follistatin-344-4","type":"citation","heading":"DOI for PMID 33460286","text":"DOI for PMID 33460286. PMID 33460286. https://doi.org/10.1002/dta.2882","words":7},{"id":"cite-follistatin-344-5","type":"citation","heading":"Central serous chorioretinopathy associated with high-dose follistatin-344: a retrospective case series.","text":"Central serous chorioretinopathy associated with high-dose follistatin-344: a retrospective case series.. PMID 32671599. https://pubmed.ncbi.nlm.nih.gov/32671599/","words":14},{"id":"cite-follistatin-344-6","type":"citation","heading":"DOI for PMID 32671599","text":"DOI for PMID 32671599. PMID 32671599. https://doi.org/10.1007/s10792-020-01501-6","words":7}],"faqs":[{"question":"What is Follistatin 344?","answer":"Follistatin 344 (FST344) is a Research Use Only chemical-identity and literature reference on Costides, not for human or veterinary use. Structure-specific registry identity fields are not published for this monograph. It is indexed as Follistatin-344 (FST344) activin-binding glycoprotein isoform studied in muscle and reproductive models; distinct from native follistatin CAS mappings; structure-specific PubChem CID not resolved. Research Use Only. Not for human or veterinary use."},{"question":"What is the CAS number of Follistatin 344?","answer":"A CAS number for Follistatin 344 (FST344) was not retrieved for this Costides monograph."},{"question":"Is Follistatin 344 for human use?","answer":"No. Follistatin 344 (FST344) pages on Costides are Research Use Only reference materials. They are not medical advice and do not describe administration or dosing."},{"question":"Can I buy Follistatin 344 from Costides?","answer":"No. Follistatin 344 is not offered for sale on Costides."},{"question":"Where does identity data for Follistatin 344 come from?","answer":"Costides indexes registry and bibliographic sources (PubChem, CAS Common Chemistry, PubMed permalinks) when available. Outcome or efficacy claims are not restated on this page."}],"links":[{"rel":"canonical","href":"https://costides.us/us/research/follistatin-344"},{"rel":"rag","href":"https://costides.us/api/rag/compound/follistatin-344"},{"rel":"llms","href":"https://costides.us/llms.txt"}]}