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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

Term:Alexa Fluor 647
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Accession:CHEBI:137394 term browser browse the term
Definition:An iminium betaine fluorescent dye with a max absorption wavelength 650 nm and emission wavelength 665 nm. Alexa Fluor 6 is a bright and photostable far-red dye with excitation ideally suited to the 633 nm laser line.
Synonyms:related_synonym: Alexa Fluor 647 Succinimidyl Esters;   Formula=C35H43N2O14S4R;   SMILES=C12=CC(=CC=C1[N+](=C(C2(CCCCC(=O)O*)C)/C=C/C=C/C=C/3\\C(C4=CC(=CC=C4N3CCCS(O)(=O)=O)S(O)(=O)=O)(C)C)CCCS([O-])(=O)=O)S(O)(=O)=O
 xref: PMID:17086199;   PMID:19109922;   PMID:22292051

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Term Annotations click to browse term
  CHEBI ontology 1193
    role 1146
      application 804
        dye 3
          fluorescent dye 2
            Alexa Fluor 647 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 1193
    subatomic particle 1180
      composite particle 1190
        hadron 1180
          baryon 1180
            nucleon 1180
              atomic nucleus 1180
                atom 1180
                  main group element atom 1141
                    p-block element atom 1138
                      chalcogen 1005
                        oxygen atom 952
                          oxygen molecular entity 952
                            hydroxides 880
                              oxoacid 332
                                chalcogen oxoacid 60
                                  sulfur oxoacid 52
                                    sulfonic acid 14
                                      sulfo group 3
                                        organosulfonic acid 3
                                          arenesulfonic acid 1
                                            Alexa Fluor 647 0
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