TAMRA NHS ester, 6-isomer

TAMRA (TMR, Tetramethylrhodamine) NHS esters Protein labeling
Cat. # Quantity Price Lead time
18120 1 mg $110 in stock
28120 5 mg $210 in stock
48120 25 mg $350 in stock
58120 50 mg $595 in stock
68120 100 mg $790 5 days
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TAMRA (tetramethylrhodamine) is a xanthene dye with a fluorescence maximum at 567 nm.

This product is an N-Hydroxysuccinimide (NHS)-ester of TAMRA dye. Pure 6-isomer. TAMRA NHS-ester readily reacts with various amines and is used to generate fluorescently labeled proteins, peptides, antibodies, and other biomolecules.

TAMRA NHS ester, 6-isomer, 68120
TAMRA NHS ester, 6-isomer, 68120
TAMRA NHS ester, 6-isomer, 68120
Structure of TAMRA NHS ester, 6-isomer
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Absorption and emission spectra of 6-TAMRA

Absorption and emission spectra of 6-TAMRA

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TAMRA NHS ester, 5-isomer

Amine-reactive, activated N-hydroxysuccinimidyl ester of TAMRA dye for the labeling of amine groups of proteins, peptides, and amino-oligonucleotides. Pure 5-isomer.

Cyanine7 amine

Cy7 amine is a near-infrared dye with free amine group for the conjugation with activated esters and other reactive molecules.
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TAMRA amine, 5-isomer

TAMRA (tetramethylrhodamine) dye, pure 5-isomer, with an amine group for the conjugation with electrophilic reagents (NHS esters, epoxides, etc).

General properties

Appearance: red powder
Molecular weight: 527.53
CAS number: 150810-69-8
Molecular formula: C29H25N3O7
IUPAC name: 2-(6-(dimethylamino)-3-(dimethyliminio)-3H-xanthen-9-yl)-4-(((2,5-dioxopyrrolidin-1-yl)oxy)carbonyl)benzoate
Solubility: good in DMF, DMSO
Quality control: NMR 1H, HPLC-MS (90%)
Storage conditions: Storage: 12 months after receipt at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
MSDS: Download
Product specifications

Spectral properties

Excitation/absorption maximum, nm: 541
ε, L⋅mol−1⋅cm−1: 84000
Emission maximum, nm: 567
Fluorescence quantum yield: 0.1
CF260: 0.34
CF280: 0.17

Product citations

  1. Wiesner, W.; Kühnel, R. M.; Pomorski, T. G. Synthesis and Purification of Lipid-Conjugated Fluorescent PH Sensors. Bio Protoc, 2023, 13(11), e4694. doi: 10.21769/BioProtoc.4694
  2. Dong, B.; Du, S.; Wang, C.; Fu, H.; Li, Q.; Xiao, N.; Yang, J.; Xue, X.; Cai, W.; Liu, D. Reversible Self-Assembly of Nanoprobes in Live Cells for Dynamic Intracellular pH Imaging. ACS Nano, 2019, 13(2), 1421–1432. doi: 10.1021/acsnano.8b07054
This Product is offered and sold for research purposes only. It has not been tested for safety and efficacy in food, drug, medical device, cosmetic, commercial or any other use. Supply does not express or imply authorization to use for any other purpose, including, without limitation, in vitro diagnostic purposes, in the manufacture of food or pharmaceutical products, in medical devices or in cosmetic products.
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