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Fluorescein

Name: Fluorescein
Brand: USP

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

Acid Yellow 73

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About This Item

Empirical Formula (Hill Notation):

C₂₀H₁₂O₅

CAS Number:

2321-07-5

Molecular Weight:

332.31

PubChem Substance ID:

329749868

UNSPSC Code:

41116107

NACRES:

NA.24

MDL number:

MFCD00005050

Colour Index Number:

45350

Beilstein/REAXYS Number:

94324

eCl@ss:

25140904

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Properties

grade

pharmaceutical primary standard

agency

USP

API family

fluorescein

manufacturer/tradename

USP

application(s)

pharmaceutical
pharmaceutical (small molecule)

format

neat

SMILES string

Oc1ccc2c(Oc3cc(O)ccc3C24OC(=O)c5ccccc45)c1

InChI

1S/C20H12O5/c21-11-5-7-15-17(9-11)24-18-10-12(22)6-8-16(18)20(15)14-4-2-1-3-13(14)19(23)25-20/h1-10,21-22H

InChI key

GNBHRKFJIUUOQI-UHFFFAOYSA-N

Description

General description

Find answers to frequently asked questions on USP products in USP FAQs.

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.
For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Fluorescein USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.

Other Notes

Sales restrictions may apply.

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1 of 1

This Item	46955	Y0000796	F2456
USP 1277004 Fluorescein	Sigma-Aldrich 46955 Fluorescein	Y0000796 Fluorescein	Sigma-Aldrich F2456 Fluorescein (free acid)
description United States Pharmacopeia (USP) Reference Standard	description free acid	description European Pharmacopoeia (EP) Reference Standard	description Dye content 95 %
manufacturer/tradename USP	manufacturer/tradename -	manufacturer/tradename EDQM	manufacturer/tradename -
grade pharmaceutical primary standard	grade -	grade pharmaceutical primary standard	grade -
application(s) pharmaceutical (small molecule)	application(s) -	application(s) pharmaceutical (small molecule)	application(s) diagnostic assay manufacturing hematology histology
format neat	format -	format neat	format -
API family fluorescein	API family -	API family fluorescein	API family -
agency USP	agency -	agency -	agency -

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Pictograms

GHS07

Signal Word

Warning

Hazard Codes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

Precautionary Statements

P264 - P280 - P305 + P351 + P338 - P337 + P313

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