This product didn't work. i was wondering if we could be a credit or reimbursed?
We have used this in the last (lot# BCCD8787) and it worked but the new one we got (BCCH4248) didn't.
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F2456
Fluorescein (freie Säure)
Dye content 95%, Powder
1 of 1 reviewers received a sample product or took part in a promotion
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| Größe/SKU | Verfügbarkeit | Preis |
|---|---|---|
2.5 g | Warenkorb auf Verfügbarkeit prüfen | € 38,90 |
100 g | Warenkorb auf Verfügbarkeit prüfen | € 75,40 |
500 g | Warenkorb auf Verfügbarkeit prüfen | € 301,00 |
Über diesen Artikel
Empirische Formel (Hill-System):
C20H12O5
CAS-Nummer:
Molekulargewicht:
332.31
NACRES:
NA.47
PubChem Substance ID:
UNSPSC Code:
12171500
Colour Index Number:
45350:1
EC Number:
219-031-8
MDL number:
Beilstein/REAXYS Number:
94324
Technischer Dienst
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Unterstützung erhaltenProduktname
Fluorescein (freie Säure), Dye content 95 %
form
powder
Quality Segment
composition
Dye content, 95%
technique(s)
titration: suitable
color
orange to red-brown
mp
320 °C (lit.)
λmax
496 nm
ε (extinction coefficient)
≥12000 at 282-286 nm, ≥39000 at 236-240 nm, ≥70000 at 488-492 nm
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
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
General description
Application
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.
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Dieser Artikel | |||
|---|---|---|---|
| description Dye content 95 % | description European Pharmacopoeia (EP) Reference Standard | description United States Pharmacopeia (USP) Reference Standard | description free acid |
| technique(s) titration: suitable | technique(s) - | technique(s) - | technique(s) titration: suitable |
| color orange to red-brown | color - | color - | color red |
| form powder | form - | form - | form powder or crystals |
| application(s) diagnostic assay manufacturing | application(s) pharmaceutical (small molecule) | application(s) pharmaceutical (small molecule) | application(s) - |
| Quality Level 200 | Quality Level - | Quality Level - | Quality Level 100 |
| composition Dye content, 95% | composition - | composition - | composition - |
Signalwort
Warning
Gefahrencodes
Sicherheitshinweise
Hazard Classifications
Eye Irrit. 2
Lagerklasse
11 - Combustible Solids
Was ist los?
WGK 3
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
PSA (Persönliche Schutzausrüstung)
Eyeshields, Gloves, type N95 (US)
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