4-(2-(6-(Dibutylamino)-2-naphthalenyl)ethenyl)-1-(3-sulfopropyl)pyridinium hydroxide inner salt
4-(2-(6-(Dibutylamino)-2-naphthalenyl)ethenyl)-1-(3-sulfopropyl)pyridinium hydroxide inner salt (CAS: 90134-00-2) is a complex organic compound with the molecular formula C28H36N2O3S and a molecular weight of 480.66 g/mol. This vital reagent is primarily employed in cell biology and histology for staining purposes. Its unique spectral properties make it valuable for various research applications within these scientific disciplines.
- IUPAC
- Di-4-ANEPPS
- Synonyms
- Di-4-ANEPPS

Fluorescent Staining in Cell Biology
Di-4-ANEPPS is utilised as a fluorescent probe for investigating membrane potential in biological systems. Its spectral properties allow for the optical monitoring of cellular activity and responses.
Histological Staining Techniques
This compound serves as a stain in histological applications, aiding in the visualisation and differentiation of cellular structures. It is particularly relevant in haematology and general histology research.
Research Reagent
As a specialised chemical, it functions as a key reagent in diverse laboratory research settings. Its applications extend to studies requiring precise molecular interaction and visualisation.
| Molecular weight | 480.66 |
|---|---|
| Empirical formula | C28H36N2O3S |
| Assay | ≥95% (HPLC) |
| Solubility | DMF: solubleDMSO: solubleethanol: soluble |
| Storage temperature | 2-8°C |
| 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.
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 4-(2-(6-(Dibutylamino)-2-naphthalenyl)ethenyl)-1-(3-sulfopropyl)pyridinium hydroxide inner salt used for?
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This compound, also known as Di-4-ANEPPS, is primarily used as a fluorescent stain in cell biology and histology for investigating membrane potential and visualising cellular structures in research settings.
What are the CAS number and molecular formula for this chemical?
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The CAS number is 90134-00-2, and the molecular formula is C28H36N2O3S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with a purity of ≥95% (HPLC). We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
What are the safety and handling precautions for this compound?
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This compound is classified under WGK Germany 3, indicating it is hazardous to water. When handling, it is essential to use eyeshields, gloves, and a type N95 (US) or type P1 (EN143) respirator filter.
How is this chemical typically stored and shipped?
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The recommended storage temperature is 2-8°C. TSS exports this fine chemical globally, adhering to all relevant shipping regulations for hazardous materials.
How can I request a quote or sample?
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To request a quote or a sample, please contact our sales team through the website or by phone, providing the product name and CAS number.
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