≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping
Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
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Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Vue d’ensemble
TRFS-green is a highly selective off−on fluorescent probe for imaging selenoprotein thioredoxin reductase (TrxR) in living cells. TRFS-green has the maximum absorbance at around 373 nm. After it is activated by TrxR , the maximum absorbance shifts to around 440 nm.
In Vitro
TRFS-green displays a green fluorescence off−on change induced by TrxR-mediated disulfide cleavage and subsequent intramolecular cyclization to liberate the masked naphthalimide fluorophore. TRFS-green gives a signal at ~480 nm when excited at 377 nm. Pretreatment of living cells with TrxR inhibitors in a dose-dependent manner can inhibit the fluorescence signal of TRFS-green in living cells, thereby facilitating the development of living cell-based screening assays for TrxR inhibitors. TRFS-green shows no response to GSH or Cys, the predominant thiols in cells, or the endogenous reducing agents, such as vitamin C and NADPH. Measure TrxR activity in crude cell extracts: Incubate cell lysates with TRFS-green for an appropriate time (usually 1-2 hours), and measure fluorescence intensity by fluorimeter (Em= 540 nm, Ex=440 nm). It is also possible to monitor the time-dependent increase in fluorescence (Em=540 nm, Ex=440 nm) over a given period of time. Cells treated with TRFS-green (10 μM; 2-4 h) can be observed through the green fluorescent channel of the microscope. Note: In order to obtain a clear fluorescence image, it is recommended to wash the cells with PBS or fresh medium immediately before taking pictures to remove residual TRFS-green. TRFS-green is the first fluorescent probe of TrxR with a green emission. However, the response rate of TRFS-green to the enzyme is slow, and it takes more than 2 h to reach the maximal fluorescence signal even using tris(2-carboxyethyl)phosphine (TCEP) as a reducing agent. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Form:Solid
Specifications
Spécifications et pureté
≥97%
Mécanismes biochimiques et physiologiques
TRFS-green is a highly selective off−on fluorescent probe for imaging selenoprotein thioredoxin reductase (TrxR) in living cells. TRFS-green has the maximum absorbance at around 373 nm. After it is activated by TrxR , the maximum absorbance shifts to arou
Conditions de stockage de stockage
Store at -20°C
Expédié en
Ice chest + Ice pads
Ce produit nécessite l'expédition en chaîne froide. Les services terrestres et autres services économiques ne sont pas disponibles.
This compound belongs to the class of organic compounds known as isoquinolones and derivatives. These are aromatic polycyclic compounds containing a ketone bearing isoquinoline moiety.
External Descriptors
Not available
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.
Certificats (CoA, COO, BSE/TSE et tableau d'analyse)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Propriétés chimiques et physiques
Solubilité
DMSO : 25 mg/mL (60.02 mM; Need ultrasonic)
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Foire aux questions
What is the purity of this product?
This product is supplied at ≥97% purity (chemical assay). Lot-specific values are stated on the Certificate of Analysis.
How should this product be stored?
Store at ?20 °C. Freezer storage is required to maintain the specified shelf life.
How is this product shipped?
This product ships in an insulated container with ice pads. Unpack on arrival and transfer it to the storage condition stated above.
What are the CAS number, molecular formula and molecular weight?
The CAS Number is 1513848-14-0, the molecular formula is C20H20N2O4S2, and the molecular weight is 416.51 g/mol. InChIKey MUAYCZWBPDUZKR-UHFFFAOYSA-N.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.
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