AAT Bioquest

5-TAMRA C6 maleimide

Product Image
Product Image
Gallery Image 1
Ordering information
Catalog Number
Unit Size
Add to cart
Additional ordering information
InternationalSee distributors
Bulk requestInquire
Custom sizeInquire
ShippingStandard overnight for United States, inquire for international
Request quotation
Physical properties
Molecular weight623.67
Spectral properties
Correction Factor (260 nm)0.32
Correction Factor (280 nm)0.178
Extinction coefficient (cm -1 M -1)90000
Excitation (nm)552
Emission (nm)578
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


Molecular weight
Correction Factor (260 nm)
Correction Factor (280 nm)
Extinction coefficient (cm -1 M -1)
Excitation (nm)
Emission (nm)
5-TAMRA C6 maleimide is an excellent replacement for tetramethylrhodamine-5-maleimide. It selectively reacts with thiol groups of peptides, proteins and other biological molecules (such as thiol-modified oligonucleotides and small thiol-containing organic molecules). It might give higher conjugation yield than tetramethylrhodamine-5-maleimide under similar conjugation conditions. 5-TMR C6 maleimide has the spectral propertied identical to those of tetramethylrhodamine-5-maleimide, thus all the instrument settings of the tetramethylrhodamine-5-maleimide would be applicable to the applications of 5-TMR C6 maleimide conjugates.


Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of 5-TAMRA C6 maleimide to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

0.1 mg0.5 mg1 mg5 mg10 mg
1 mM160.341 µL801.706 µL1.603 mL8.017 mL16.034 mL
5 mM32.068 µL160.341 µL320.682 µL1.603 mL3.207 mL
10 mM16.034 µL80.171 µL160.341 µL801.706 µL1.603 mL

Molarity calculator

Enter any two values (mass, volume, concentration) to calculate the third.

Mass (Calculate)Molecular weightVolume (Calculate)Concentration (Calculate)Moles


Open in Advanced Spectrum Viewer

Spectral properties

Correction Factor (260 nm)0.32
Correction Factor (280 nm)0.178
Extinction coefficient (cm -1 M -1)90000
Excitation (nm)552
Emission (nm)578

Product Family

NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)Correction Factor (260 nm)Correction Factor (280 nm)
5(6)-TAMRA Maleimide [Tetramethylrhodamine-5-(and-6)-maleimide] *Mixed isomers*552578900000.320.178
6-TAMRA C6 maleimide552578900000.320.178



View all 2 citations: Citation Explorer
Isolation of a human SARS-CoV-2 neutralizing antibody from a synthetic phage library and its conversion to fluorescent biosensors
Authors: Li, Haimei and Zhu, Bo and Li, Baowei and Chen, Limei and Ning, Xuerao and Dong, Hang and Liang, Jingru and Yang, Xueying and Dong, Jinhua and Ueda, Hiroshi
Journal: Scientific reports (2022): 1--14


View all 21 references: Citation Explorer
Severing of F-actin by yeast cofilin is pH-independent
Authors: Pavlov D, Muhlrad A, Cooper J, Wear M, Reisler E.
Journal: Cell Motil Cytoskeleton (2006): 533
Fluorometric measurements of intermolecular distances between the alpha and beta subunits of the Na+/K+-ATPase
Authors: Dempski RE, Hartung K, Friedrich T, Bamberg E.
Journal: J Biol Chem. (2006)
4-aminopyridine prevents the conformational changes associated with P/C-type inactivation in Shaker channels
Authors: Claydon TW, Vaid M, Rezazadeh S, Kehl SJ, Fedida D.
Journal: J Pharmacol Exp Ther. (2006)
Both rotor and stator subunits are necessary for efficient binding of F1 to F0 in functionally assembled Escherichia coli ATP synthase
Authors: Krebstakies T, Zimmermann B, Graber P, Altendorf K, Borsch M, Greie JC.
Journal: J Biol Chem (2005): 33338
The beta subunit of the Na+/K+-ATPase follows the conformational state of the holoenzyme
Authors: Dempski RE, Friedrich T, Bamberg E.
Journal: J Gen Physiol (2005): 505
Perturbation analysis of the voltage-sensitive conformational changes of the Na+/glucose cotransporter
Authors: Loo DD, Hirayama BA, Cha A, Bezanilla F, Wright EM.
Journal: J Gen Physiol (2005): 13
Cytochrome c conformations resolved by the photon counting histogram: watching the alkaline transition with single-molecule sensitivity
Authors: Perroud TD, Bokoch MP, Zare RN.
Journal: Proc Natl Acad Sci U S A (2005): 17570
Membrane topology of loop 13-14 of the Na+/glucose cotransporter (SGLT1): a SCAM and fluorescent labelling study
Authors: Gagnon DG, Holt A, Bourgeois F, Wallendorff B, Coady MJ, Lapointe JY.
Journal: Biochim Biophys Acta (2005): 173
Distances between tropomyosin sites across the muscle thin filament using luminescence resonance energy transfer: evidence for tropomyosin flexibility
Authors: Chen Y, Lehrer SS.
Journal: Biochemistry (2004): 11491
Crystal structure of monomeric actin in the ATP state. Structural basis of nucleotide-dependent actin dynamics
Authors: Graceffa P, Dominguez R.
Journal: J Biol Chem (2003): 34172