ROX NHS ester, 5-isomer

Cat. # Quantity Price Lead time
11220 1 mg $110 in stock
21220 5 mg $210 in stock
41220 25 mg $410 in stock
51220 50 mg $695 in stock
61220 100 mg $1190 in stock
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ROX (rhodamine X) is a bright rhodamine dye for ROX channel. Carboxy rhodamines come as two isomers. This product is a derivative of pure 5-carboxy-ROX.

Absorption and emission spectra of ROX dye

Absorption and emission spectra of ROX dye

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ROX azide, 5-isomer

Azide derivative of ROX (Rhodamine X, Rhodamine 101) dye for biomolecule labeling via click chemistry. Pure 5-isomer.

BDP TR-X-NHS ester

BDP TR-X-NHS ester is a derivative of BDP TR containing a long linker based on aminohexanoic acid (C6). The dye has absorption and emission close to ROX. The NHS ester function can be used to conjugate proteins and peptides.

General properties

Appearance: dark red solid
Mass spec M+ increment: 516.2
Molecular weight: 631.67
CAS number: 209734-74-7; 344402-35-3
Molecular formula: C37H33N3O7
Solubility: good in DMF, DMSO
Quality control: NMR 1H, HPLC-MS (80%)
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: 93000
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
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