ROX NHS ester, 5-isomer

Cat. # Quantity Price Lead time
11220 1 mg $110.00 in stock
21220 5 mg $210.00 in stock
41220 25 mg $410.00 in stock
51220 50 mg $695.00 in stock
61220 100 mg $1190.00 in stock

ROX (rhodamine X) is a bright rhodamine dye for ROX/Texas Red 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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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

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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