01. 3DMET (Three-Dimensional Structure Database of Natural Metabolites): http://www.3dmet.dna.affrc.go.jp/
02. BiGG Models (A Biochemical Genetic and Genomic knowledgebase of large scale metabolic reconstructions): http://bigg.ucsd.edu/
03. BioCyc (BioCyc Pathway/Genome Database Collection): https://biocyc.org/
04. CFM-ID 4.0: http://cfmid4.wishartlab.com
05. ChEBI (A database and ontology of chemical entities of biological interest): http://www.ebi.ac.uk/chebi
06. ChemExper: http://www.chemexper.com/
07. CSI:FingerID: https://www.csi-fingerid.uni-jena.de/
08. Curatr: https://curatr.mcf.embl.de/inventory/
09. DrugBank: https://www.drugbank.ca/
10. ECMBD (The E. coli Metabolome Database): http://ecmdb.ca/
11. GitHub: https://apps.lifs.isas.de/goslin
12. Gene Cards: https://www.genecards.org
13. GMD (Golm Metabolome Database): http://gmd.mpimp-golm.mpg.de/
14. GMDB (The Glycan Mass Spectral Database): https://jcggdb.jp/rcmg/glycodb/Ms_ResultSearch
15. GNPS: https://gnps.ucsd.edu/ProteoSAFe/static/gnps-splash.jsp
16. HMDB (The Human Metabolome Database): http://www.hmdb.ca/
17. iBonD: http://ibond.nankai.edu.cn
18. Index Fungorum: http://www.indexfungorum.org/Names/Names.asp
19. KEGG (Kyoto Encyclopedia of Genes and Genomes): https://www.genome.jp/kegg/
20. Lipid Library: https://lipidlibrary.aocs.org/
21. LIPID MAPS: https://www.lipidmaps.org/
22. LipidBlast: https://fiehnlab.ucdavis.edu/projects/LipidBlast
23. MAGMa: http://magma.maths.usyd.edu.au/magma/
24. MassBank: http://www.massbank.jp/
25. MassIVE: https://massive.ucsd.edu/ProteoSAFe/static/massive.jsp
26. MassTRIX: http://masstrix3.helmholtz-muenchen.de/masstrix3/
27. MBROLE 2.0: http://csbg.cnb.csic.es/mbrole2/
28. MCID(MyCompoundID): http://www.mycompoundid.org/mycompoundid_IsoMS/
29. MeRy-B (Metabolomic Repository Bordeaux): http://bit.ly/meryb
30. Metabolights: https://www.ebi.ac.uk/metabolights/
31. MetaboSearch: http://omics.georgetown.edu/metabosearch.html
32. MetDNA2: http://metdna.zhulab.cn
33. METLIN (Metabolite Link): https://metlin.scripps.edu/
34. Microbiome Search Engine (MSE): http://mse.ac.cn/
35. MIDAS (A database-searching algorithm for metabolite identification in metabolomics): http://midas.omicsbio.org
36. MMMDB (Mouse Multiple Tissue Metabolome Database): http://mmmdb.iab.keio.ac.jp
37. MoNA (MassBank of North America): https://mona.fiehnlab.ucdavis.edu/
38. MS2Analyzer: https://fiehnlab.ucdavis.edu/projects/MS2Analyzer/
39. MS2LDA: https://labworm.com/tool/ms2lda
40. MS-FINDER: http://prime.psc.riken.jp/Metabolomics_Software/MS-FINDER/
41. MSn fragmentation library: https://www.mzcloud.org
42. msTide: http://www.mstide-db.com/static/description.html
43. MySQL Workbench: https://dev.mysql.com/downloads/workbench/
44. NCBI taxonomy: https://www.ncbi.nlm.nih.gov/taxonomy
45. NIST (National Institute of Standards and Technology): https://www.nist.gov/
46. NIST Mass Spectral Library: https://chemdata.nist.gov/
47. NuGO (Nutrition): http://www.nugo.org/
48. Pharm Mapper: http://www.lilab-ecust.cn/pharmmapper/
49. PlantCyc database: https://www.plantcyc.org/
50. PMDB (Plant Metabolome Database): http://www.sastra.edu/scbt/pmdb
51. PubChem: http://pubchem.ncbi.nlm.nih.gov/
52. Reactome: http://www.reactome.org/
53. ReSpect for Phytochemicals: http://spectra.psc.riken.jp/
54. SDBS (AIST:Spectral Database for Organic Compounds): https://sdbs.db.aist.go.jp/sdbs/cgi-bin/cre_index.cgi
55. SIRIUS 4: https://bio.informatik.uni-jena.de/sirius/
56. SMPDB (The Small Molecule Pathway Database): http://smpdb.ca/
57. SWISS: http://www.swisstargetprediction.ch/
58. SYSTOMONAS genome Database: http://www.systomonas.tu-bs.de/
59. TMDB (Tea Metabolome Database): http://pcsb.ahau.edu.cn:8080/TCDB/index.jsp
60. UniProt ID database: https://www.uniprot.org
61. YMDB (The Yeast Metabolome Database): http://www.ymdb.ca/