2-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid

HCID 3383CAS 518-45-6

Basic information

Standard SMILES
O=C(O)c1ccccc1-c1c2ccc(=O)cc-2oc2cc(O)ccc12
InChIKey
YKGGGCXBWXHKIZ-UHFFFAOYSA-N
Molecular formula
C20H12O5
Average molar mass
332.3 g/mol
Monoisotopic mass
332.06847348

Overview

Fluorescein (acid form) is a xanthene dye that is highly fluorescent and commonly used as a fluorescent tracer. It has a role as a radioopaque medium and a fluorescent dye. It is a member of benzoic acids, an organic heterotricyclic compound, a member of phenols, a hydroxy monocarboxylic acid, a xanthene dye and a cyclic ketone.

Names & identifiers

Preferred name
2-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid
IUPAC
2-(3-hydroxy-6-oxoxanthen-9-yl)benzoic acid

Names & synonyms

2-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid518-45-62-(3-hydroxy-6-oxoxanthen-9-yl)benzoic acidflourescein1flr2-(6-HYDROXY-3-OXO-3H-XANTHEN-9-YL)-BENZOIC ACIDMFCD00066735CHEMBL1777562-(6-oxido-3-oxo-3H-xanthen-9-yl)benzoate2-(3-hydroxy-6-oxo-xanthen-9-yl)benzoic acid2-(6-hydroxy-3-oxoxanthen-9-yl)benzoic acid1n0s
Show more names
fluorescein (acid form)cid_3383CBDivE_002901SCHEMBL107875orb1308756SCHEMBL29591827SCHEMBL29781098CHEBI:172923

Database identifiers

CAS
518-45-6
PubChem CID
3383
DTXSID
DTXSID601031482
ChEMBL
CHEMBL177756
ChEBI
CHEBI:172923
EC Number
108-123-2
Nikkaji
J1.849.662C、J79.263B、J837.015J

Properties

Computed structural properties

XLogP
2.4
Topological polar surface area
83.8 Ų
Hydrogen bond donors
2
Hydrogen bond acceptors
5
Rotatable bonds
2
Heavy atoms
25

Experimental & physicochemical properties

SpringerMaterials PropertiesAngular frequency

Safety & regulation

GHS classification

GHS Classification · 4 items

Warning

H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

Hazard information

Hazard Classes and CategoriesSkin Irrit. 2 (100%)

Related reactions

95 records

Linked notes

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