Fluorescein mono-p-guanidinobenzoate

Fluorescein mono-p-guanidinobenzoate is a fluorescent derivative of fluorescein in which a single para-guanidinobenzoate group is attached, commonly used as a research probe for labeling and tracking biomolecules in biochemical and cell biology studies. The directory classifies it as a unknown/inactive API with a synthetic source/manufacturing origin. Other names for this substance include Benzoic acid, 4-((aminoiminomethyl)amino)-, 6′-hydroxy-3-oxospiro(isobenzofuran-1(3H), 9′-(9H)xanthen)-3′-yl ester and monohydrochloride. Its PubChem CID is 134314.

CAS No 83616-10-8
Molecular Formula C28H20ClN3O6
Molecular Weight 529.9 g/mol
Synonyms (6′-hydroxy-3-oxospiro[2-benzofuran-1,9′-xanthene]-3′-yl) 4-(diaminomethylideneamino)benzoate;hydrochloride

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