Description

Rhodamine 700 is a high-purity, laser-grade cyanine dye belonging to the xanthene family, identified by CAS No. 63561-42-2. This compound is valued for its excellent photostability and intense fluorescence in the near-infrared (NIR) spectral region, making it a critical component for advanced photonic applications. It is essential for researchers and engineers in the fields of laser technology, optical materials, and analytical chemistry who require reliable and high-performance fluorescent markers and gain media.

Application

• Laser Dye: Used as a gain medium in tunable dye lasers operating in the red to near-infrared spectrum.
• Fluorescent Probes & Markers: Employed in biomedical research and diagnostics for labeling and imaging applications.
• Optical Data Storage: A key material in the development of advanced optical recording media.
• Non-Linear Optics (NLO): Utilized in research and fabrication of materials for frequency doubling and other photonic devices.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer in medical research applications.
• Analytical Chemistry: Serves as a sensitive fluorescent tracer in chromatography and capillary electrophoresis.
• Sensor Technology: Incorporated into chemical sensors and biosensors for detection purposes.
• Material Science: Used in the synthesis of specialty polymers and coatings with specific optical properties.

Basic Information

Product Name	Rhodamine 700
CAS No.	63561-42-2
Molecular Formula	C₃₃H₃₅N₂O₃⁺ (commonly as perchlorate salt: C₃₃H₃₅ClN₂O₇)
Molecular Weight	~ 626.69 g/mol (Free cation)
Synonyms	Rh700; Rhodamine 700 Perchlorate; 2-[6-(Ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoic acid perchlorate; C.I. 51010; Basic Violet 11; Laser Grade Rhodamine 700; Xanthene dye 700; 9-(2-Carboxyphenyl)-3,6-bis(ethylamino)-2,7-dimethylxanthylium perchlorate
EINECS	Contact for details

Quality Control

Our Rhodamine 700 is produced under strict quality management protocols to ensure batch-to-batch consistency and high performance. Each lot undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometry for absorbance/fluorescence verification, and residual solvent analysis. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your technical specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using a desiccant.

Specification

Item	Specification
Appearance	Dark green to violet crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Absorption Max (λmax)	640 - 660 nm (in methanol)
Emission Max (λem)	690 - 710 nm (in methanol)
Loss on Drying	≤ 2.0 %
Residual Solvents (GC)	Meets ICH guidelines
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.