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HCID 76845Erstellt: 25. Oktober 2026

5-Amino-2-(3-hydroxy-6-oxoxanthen-9-yl)benzoesure

FLUORESCEINAMINE · 5-AF · AMINOFLUORESCEIN · 5-AFM · 4-AMINOFLUORESCEIN · 5-amino-3',6'-dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one · 5-AMF · (isoMer I)

https://huagongshe.com/de/chemical/76845

Molekülstruktur von 5-Amino-2-(3-hydroxy-6-oxoxanthen-9-yl)benzoesure

Identifikatoren & physikalische Daten

CAS No.3326-34-9
SummenformelC20H13NO5
Durchschnittliche Molmasse347,3 g/mol
Monoisotopische Masse347,07937252 g/mol
SMILESNc1ccc2c(c1)C(=O)OC21c2ccc(O)cc2Oc2cc(O)ccc21
InChIKeyGZAJOEGTZDUSKS-UHFFFAOYSA-N
PubChem CID76845
ChEMBLCHEMBL5284644
ChEBICHEBI:91078
EC No.222-043-6
DTXSIDDTXSID0062979
Lokaler Name5-Amino-2-(3-hydroxy-6-oxoxanthen-9-yl)benzoesure

Chemische & physikalische Eigenschaften

XLogP2,7
Polarare Oberfläche (TPSA)102
H-Brücken-Donoren3
H-Brücken-Akzeptoren6
Frei drehbare Bindungen0
Schwere Atome26
Formalladung0
Komplexität557
Endocrine DisruptorsPotential endocrine disrupting compound
Schmelzpunkt223 °C (dec.)(lit.)
Siedepunkt481.89°C (rough estimate)
Dichte1.3724 (rough estimate)
Brechungsindex1.5180 (estimate)
Lagerbedingungenroom temp
LöslichkeitDMF: 5 mg/mlDMSO: 5 mg/mlSoluble in water (partly), methanol (10 mg/ml), and acetone.
pKa (Säurekonstante)9.34±0.20(Predicted)
Aggregatzustandpowder
Farbered-brown
BRN48395
StabilitätLight and Moisture Sensitive
Hauptanwendungendiagnostic assay manufacturinghematologyhistology
InChI1S/C20H13NO5/c21-10-1-4-14-13(7-10)19(24)26-20(14)15-5-2-11(22)8-17(15)25-18-9-12(23)3-6-16(18)20/h1-9,22-23H,21H2
InChIKeyGZAJOEGTZDUSKS-UHFFFAOYSA-N
SMILESNc1ccc2c(c1)C(=O)OC23c4ccc(O)cc4Oc5cc(O)ccc35
CAS Datenbank3326-34-9(CAS DataBase Reference)
EPA chemische InformationenSpiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 5-amino-3',6'-dihydroxy- (3326-34-9)

Sicherheit & Vorschriften

GHS-EinstufungWarningH302 (98.8%): Harmful if swallowed [Warning Acute toxicity, oral]P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 85 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesAcute Tox. 4 (98.8%)
F10
Wassergefährdungsklasse (WGK)3
TSCA-Inventar-StatusTSCA listed
Zollcode32049090
R-Sätze (R)22-36/37/38
GefahrensymboleXn
Sicherheitshinweise (S)26
Lagerklasse11 - Combustible Solids
GefahrenklasseAcute Tox. 4 OralEye Irrit. 2Skin Irrit. 2STOT SE 3

Anwendungen & Verwendung

Verwenden

Glycosaminoglycuronans react with 5-aminofluorescein to yield fluorescent derivatives. 5-aminofluorescein is also used to prepare FITC Isomer I (F-011, F-020).

Herstellung & Synthese

synthetische

The preparation of 5-aminofluorescein is carried out either by first saponification of 5-nitrofluorescein acetates with alcohol alkali, followed by reduction of the obtained 5-nitrofluorescein in a solution of alcohol alkali with hydrazine hydrate on a nickel catalyst to obtain 5-aminofluorescein , Or by boiling in an aqueous solution of sodium sulfide. The restoration of the nitro group and the saponification of acetates in the second case occurs in one stage.