TMRE

TMRE Property

Melting point:

264–266℃

storage temp. 

Sealed in dry,Room Temperature

solubility 

DMSO: soluble

form 

crystals

color 

Dark green

Appearance

dark colored solid

λmax

549 nm

Biological Applications

Detecting mitochondrial membrane potential; apoptosis assays; multidrug resistance assays

Major Application

Semi-conducting polymer nanoparticles

InChIKey

NBAOBNBFGNQAEJ-UHFFFAOYSA-M

SMILES

Cl([O-])(=O)(=O)=O.C(C1C=CC=CC=1C1C2=CC=C(N(C)C)C=C2[O+]=C2C=C(N(C)C)C=CC=12)(=O)OCC

Safety

Hazard Codes 

Xn

Risk Statements 

20/22-36/38

Safety Statements 

26-36

WGK Germany 

3

F 

8-10

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

TMRE Chemical Properties,Usage,Production

Description

TMRE is widely used for labeling mitochondria in live cells but not compatible with fixation. This lipophilic and positively charged dye rapidly permeates plasma membrane without interacting with membrane proteins and forming aggregates. TMRE selectively accumulates in active mitochondria due to their transmembrane potential.

In addition to staining mitochondria for imaging purposes, TMRE is used for quantitative measurements of mitochondria membrane potential using Nernst equation. The dye serves as a tool to study mitochondrial function changes and cell viability in response to stimuli or pharmaceuticals of interest. Mitochondrial depolarization caused by apoptosis, necrosis or other factors is characterized by decreased membrane potential and is indicated with decreased fluorescence compared to intact cells that have polarized mitochondria.

TMRE applications include fluorescent microscopy, flow cytometry, microplate assays. The dye has an excitation maximum at 549 nm: it can be effectively excited by the blue (488 nm) or yellow-green (561 nm) lasers. Emission of the dye can be detected in PE channel (maximum at 574 nm).

Uses

Tetramethylrhodamine Ethyl Ester Perchlorate is a fluorescent probe which is used in measuring membrane potential changes in mitochondria.

Definition

ChEBI: Tetramethylrhodamine ethyl ester perchlorate is an organic perchlorate salt that has tetramethylrhodamine ethyl ester(1+) as the cation. It is used as a cell-permeant, cationic, red-orange fluorescent dye that is readily sequestered by active mitochondria. It has a role as a fluorochrome and a reagent. It is a xanthene dye and an organic perchlorate salt. It contains a tetramethylrhodamine ethyl ester(1+).

Abs/Em Maxima

552/575 nm

Excitation / Emission Maximum

550 nm/575 nm