5(6)-Carboxytetramethylrhodamine
5(6)-Carboxytetramethylrhodamine (CAS 98181-63-6), with the molecular formula C25H22N2O5 and a molecular weight of 430.45 g/mol, is a fluorescent biochemical reagent. It is designed to react with primary and secondary amine groups, making it valuable for labelling biomolecules. This compound is suitable for fluorescence applications, emitting light at approximately 572 nm when excited at 543 nm.

Fluorescent Labelling
5(6)-Carboxytetramethylrhodamine serves as a fluorescent label, reacting with amine groups on proteins, nucleic acids, and other biomolecules for detection and analysis.
Biochemical Research
Utilised as a biochemical reagent, it aids in various research applications requiring fluorescent probes and indicators due to its specific excitation and emission wavelengths.
Amine Group Detection
The compound's reactivity with primary and secondary amines makes it useful for derivatising and detecting these functional groups in biological samples.
Fluorescence Assays
Its fluorescent properties, with an emission maximum around 572 nm, make it suitable for use in fluorescence-based assays and imaging techniques.
| Molecular weight | 430.45 |
|---|---|
| Empirical formula | C25H22N2O5 |
| Assay | ≥85% (sum of isomers, HPCE) |
| Solubility | DMF: solubleDMSO: soluble |
| Application | Reacts with primary and secondary amine groups on proteins, nucleic acids and other biomolecules. |
| Suitability | suitable for fluorescence |
| Melting point | ≥300 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Product Line | BioReagent |
|---|---|
| Fluorescence | λex 543 nm; λem 572 nm in methanol |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 5(6)-Carboxytetramethylrhodamine used for?
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5(6)-Carboxytetramethylrhodamine is used as a fluorescent label and biochemical reagent, reacting with amine groups on biomolecules for detection and analysis in fluorescence applications.
What is the CAS number and molecular formula for 5(6)-Carboxytetramethylrhodamine?
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The CAS number is 98181-63-6 and the molecular formula is C25H22N2O5.
What grade and purity does Tech Serve Solutions supply for 5(6)-Carboxytetramethylrhodamine?
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Tech Serve Solutions supplies 5(6)-Carboxytetramethylrhodamine with an assay of ≥85% (sum of isomers, HPCE). This product is intended for research and technical use and is not represented as USP, BP, or EP grade.
What are the safety considerations when handling 5(6)-Carboxytetramethylrhodamine?
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When handling 5(6)-Carboxytetramethylrhodamine, it is essential to use personal protective equipment, including eyeshields, gloves, and a type N95 (US) or type P1 (EN143) respirator filter. The compound has a WGK Germany rating of 3.
How is 5(6)-Carboxytetramethylrhodamine packed, shipped, and exported?
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Tech Serve Solutions ensures secure packing and reliable global export of 5(6)-Carboxytetramethylrhodamine, adhering to international shipping regulations for chemicals.
How can I request a sample or quote for 5(6)-Carboxytetramethylrhodamine?
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To request a sample or a quote for 5(6)-Carboxytetramethylrhodamine, please contact our sales team through the TSS website or your dedicated account manager.
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