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TMRM
Tetramethylrhodamine methyl ester; CAS#: 115532-50-8
Positively charged rhodamine dyes (such as rhodamine esters and rosamines) are selectively localized in mitochondria, thus they are widely used for labeling mitochondria of live cells. Like JC-1, TMRM and TMRE are widely used for measuring mitochondrial membrane potential besides their selective mitochondrial staining. These two particular rhodamine esters stain mitochondria orange in fluorescence. Their spectral properties are similar to those of TRITC, making the use of TMRM and TMRE quite convenient. TMRE is slightly more hydrophobic than TMRM.
Chemical structure for TMRM [Tetramethylrhodamine methyl ester] *CAS#: 115532-50-8*
Chemical structure for TMRM [Tetramethylrhodamine methyl ester] *CAS#: 115532-50-8*
CatalogSize
Price
Quantity
2222125 mg
Price
 
Physical properties

Molecular weight500.93
SolventDMSO
Spectral properties

Excitation (nm)552
Emission (nm)574
Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageFreeze (< -15 °C); Minimize light exposure
UNSPSC12352200
CAS115532-50-8
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Page updated on October 13, 2025