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Merck
모든 사진(4)

Key Documents

F2456

Sigma-Aldrich

Fluorescein (free acid)

Dye content 95%, Powder

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About This Item

실험식(Hill 표기법):
C20H12O5
CAS Number:
Molecular Weight:
332.31
색상 지수 번호:
45350:1
Beilstein:
94324
EC Number:
MDL number:
UNSPSC 코드:
12171500
PubChem Substance ID:
NACRES:
NA.47

product name

Fluorescein (free acid), Dye content 95 %

형태

powder

Quality Level

구성

Dye content, 95%

색상

orange to red-brown

mp

320 °C (lit.)

λmax

496 nm

ε (흡광계수)

≥12000 at 282-286 nm
≥39000 at 236-240 nm
≥70000 at 488-492 nm

응용 분야

diagnostic assay manufacturing
hematology
histology

저장 온도

room temp

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

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일반 설명

Fluorescein (free acid, CI 45350) is a xanthene dye. Fluorescein (free acid) molecule can be divided into two parts. One part contains xanthene moiety which acts as fluorophore and the other part of the molecule bears benzene moiety which is the fluorescence-controlling moiety.

애플리케이션

Fluorescein (free acid) has been used as a staining agent in retinal imaging.
Fluorescein (free acid) is widely used as a fluorescent stain and trace for many living cells and tissue applications. It is also suitable as a marker for the study of motility of bile canaliculi. Some of the clinical applications are evaluating the ocular surface and delineation of brain regions lacking a blood-brain barrier to permit accurate surgical resection of malignant glioma. Fluorescein angiography helps investigate changes in retinal blood supply. Fluorescein also plays a role as a physiological tracer to characterize the salmon′s intestinal permeability (Schep et al., 1998), and for the fluorophotometric measurement of aqueous humor flow. It is widely employed as a quantum yield standard.

픽토그램

Exclamation mark

신호어

Warning

유해 및 위험 성명서

예방조치 성명서

Hazard Classifications

Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

Eyeshields, Gloves, type N95 (US)


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