Thermo Scientific Chemicals Fluorescein

Catalog No.	Quantity
AAL1325122	100 g
AAL1325136	500 g

Catalog No. AAL1325122 Supplier Thermo Scientific Chemicals Supplier No. L1325122

Description

CAS: 2321-07-5 | C20H12O5 | 332.31 g/mol

Fluorescein is used as a fluorescent tracer for many applications including in a type of dye laser as the gain medium, in forensics and serology to detect latent blood stains and in dye tracing. It is used to localise multiple muscular ventricular septal defects during open heart surgery and confirm the presence of any residual defects. It is applied to teeth to reveal plaque.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Solubility
Slightly soluble in water and alcohol.

Notes
Incompatibles with strong oxidizing agents. Moisture sensitive.

Specifications

Chemical Identifiers

• CAS: 2321-07-5
• Molecular Formula: C20H12O5
• Molecular Weight (g/mol): 332.31
• MDL Number: MFCD00005050
• InChI Key: GNBHRKFJIUUOQI-UHFFFAOYSA-N
• Synonym: fluorescein, solvent yellow 94, resorcinolphthalein, yellow fluorescein, 3,6-fluorandiol, d and c yellow no. 7, fluoresceine, japan yellow 201, c.i. solvent yellow 94, d&c yellow no. 7
• PubChem CID: 16850
• ChEBI: CHEBI:31624
• IUPAC Name: 3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one
• SMILES: C1=CC=C2C(=C1)C(=O)OC23C4=C(C=C(C=C4)O)OC5=C3C=CC(=C5)O

• Melting Point: 320°C
• Quantity: 100 g
• Beilstein: 94324
• Merck Index: 14,4159
• Solubility Information: Slightly soluble in water and alcohol.
• Formula Weight: 332.32
• Percent Purity: ≥90%
• Chemical Name or Material: Fluorescein

Safety and Handling

Hazard Category	H319
Hazard Statement	GHS H Statement H319 Causes serious eye irritation.
Precautionary Statement	P264b-P280i-P305+P351+P338
EINECSNumber	219-031-8
RTECSNumber	LM5075000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only