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63184

Sigma-Aldrich

5-Maleimido-eosin

for fluorescence, ≥93% (HPLC)

Sinonimo/i:

EMA, Eosin-5-maleimide

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About This Item

Formula empirica (notazione di Hill):
C24H9Br4NO7
Numero CAS:
150322-02-4
Peso molecolare:
742.95
Numero MDL:
MFCD07437936
Codice UNSPSC:
12352207
ID PubChem:
329759808
NACRES:
NA.32

Grado

for fluorescence

Livello qualitativo

100

Saggio

≥93% (HPLC)

Fluorescenza

λex 524 nm; λem 545 nm (after derivatization with 2-mercaptoethanol)

Temperatura di conservazione

2-8°C

Stringa SMILE

Oc1c(Br)cc2c(Oc3c(Br)c(O)c(Br)cc3C24OC(=O)c5cc(ccc45)N6C(=O)C=CC6=O)c1Br

InChI

1S/C24H9Br4NO7/c25-13-6-11-21(17(27)19(13)32)35-22-12(7-14(26)20(33)18(22)28)24(11)10-2-1-8(5-9(10)23(34)36-24)29-15(30)3-4-16(29)31/h1-7,32-33H
YRCLWXRIEYQTAV-UHFFFAOYSA-N

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Descrizione generale

5-Maleimido-eosin, also known as EMA or Eosin-5-maleimide, is a fluorescent binding agent. The 5-Maleimido-eosin binding test measures the EMA-labeled cells reduced mean channel fluorescence (MCF) reading.

Applicazioni

Eosin-5-maleimide has been used as a fluorescent probe for the human erythrocyte band 3 protein. It is widely used as a diagnostic probe for the laboratory detection of hereditary spherocytosis (HS) by flow cytometry. The eosin-5-maleimide binding test was done to analyze the effect of alectinib (first line of treatment) for anaplastic lymphoma kinase (ALK).

Altre note

Triplet probe. Measurement of rotational diffusion of protein in solution and in membranes, including myosin and pyruvate dehydrogenase

Prodotti correlati

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Descrizione
Determinazione del prezzo

08168

Timestrip Plus™ 8 °C

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)

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Certificati d'analisi (COA)

Lot/Batch Number
BCCM3049
BCCL1128
BCCJ4780
BCCG9639
BCCF3538

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S Ishiwata et al.
The Journal of biological chemistry, 262(17), 8314-8317 (1987-06-15)
We studied the rotational Brownian motions of myosin heads, of which the sulfhydryl group was selectively labeled with the triplet probe 5-eosinylmaleimide, in myofibril by using flash-induced phosphorescence anisotropy decay measurements. The anisotropy decay curve under relaxing conditions consisted of
Renée L Crisp et al.
Pediatric blood & cancer, 59(7), 1299-1301 (2012-04-11)
We studied 31 children with hemolytic anemia, or with positive family history for hereditary spherocytosis (HS), to assess the reliability of capillary blood samples for the diagnosis. HS was diagnosed in 20 patients. Cryohemolysis (CH) was positive in 94% and
Linda Hunt et al.
Cytometry. Part B, Clinical cytometry, 88(1), 50-57 (2014-09-18)
The eosin-5'-maleimide (EMA) Binding test measures reduced mean channel fluorescence (MCF) reading of EMA-labeled red cells (EMA-RBCs) from patients with hereditary spherocytosis (HS). Reporting test results can be either in the actual MCF reading or as a ratio by normalization
P A Knauf et al.
The American journal of physiology, 264(5 Pt 1), C1144-C1154 (1993-05-11)
Eosin-5-maleimide (EM) has been used as a fluorescent probe for the external-facing transport site of the human erythrocyte band 3 protein. Changes in chloride concentration at both sides of the membrane have no significant effect on the inhibitory potency of
Paola Bianchi et al.
Haematologica, 97(4), 516-523 (2011-11-08)
The laboratory diagnosis of hereditary spherocytosis commonly relies on NaCl-based or glycerol-based red cell osmotic fragility tests; more recently, an assay directly targeting the hereditary spherocytosis molecular defect (eosin-5'-maleimide-binding test) has been proposed. None of the available tests identifies all
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