ROX NHS ester, 6-isomer

Cat. # Quantity Price Lead time
12220 1 mg $110 in stock
22220 5 mg $210 in stock
42220 25 mg $410 in stock
52220 50 mg $695 in stock
62220 100 mg $1190 in stock
Found better price? Let us know and we will propose the way forward!

ROX (Rhodamine X, R101) is a highly fluorescent, and photostable rhodamine dye for various applications. ROX labeled oligonucleotide probes are often used in qPCR, and qPCR instruments have ROX channel.

This is reactive dye for the labeling of amino-groups in peptides, proteins, and amino-oligonucleotides. Pure single isomer.

Absorption and emission spectra of ROX dye

Absorption and emission spectra of ROX dye

Customers also purchased with this product

AF 488 NHS ester

AF 488 NHS ester, a bright, photostable, and hydrophilic fluorescent dye for the green channel.

Inosine (dI) phosphoramidite

Dimethoxytrityl deoxyinosine (Dmt-dI) phosphoramidite for the synthesis of modified DNA oligonucleotides.

VIC phosphoramidite, 6-isomer

VIC is an asymmetrical xanthene dye with spectral properties similar to HEX and JOE. Useful as a label for qPCR probes.
Add this product to your cart and
get free express delivery

General properties

Appearance: dark crimson powder
Mass spec M+ increment: 516.2
Molecular weight: 631.67
CAS number: 117491-83-5; 1890922-83-4; 216699-36-4
Molecular formula: C37H33N3O7
Solubility: good in polar organic solvents (DMF, DMSO), low in water
Quality control: NMR 1H, HPLC-MS (80+%, balance mostly free carboxylic acid)
Storage conditions: Storage: 12 months after receival 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: 570
ε, L⋅mol−1⋅cm−1: 88000
Emission maximum, nm: 591
Fluorescence quantum yield: 1.0
CF260: 0.62
CF280: 0.49

Product citations

  1. Konopka, C.J.; Wozniak, M.; Hedhli, J.; Ploska, A.; Schwartz-Duval, A.; Siekierzycka, A.; Pan, D.; Munirathinam, G.; Dobrucki, I.T.; Kalinowski, L.; Dobrucki, L.W. Multimodal imaging of the receptor for advanced glycation end-products with molecularly targeted nanoparticles. Theranostics, 2018, 8(18), 5012–5024. doi: 10.7150/thno.24791
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.