Naphthol Yellow S
Naphthol Yellow S (CAS: 846-70-8), a disodium salt with the formula C10H4N2Na2O8S and a molecular weight of 358.19 g/mol, is a synthetic organic dye. It is commonly employed as an analytical reagent, particularly for microscopy in histology. Its properties also make it useful for the precipitation of amino acids and peptides, serving as a valuable tool in biochemical analysis.
- IUPAC
- 2,4-Dinitro-1-naphthol-7-sulfonic acid sodium salt,5,7-Dinitro-8-hydroxy-2-naphthalenesulfonic acid sodium salt,Acid Yellow 1,Flavianic acid sodium salt
- Synonyms
- 2,4-Dinitro-1-naphthol-7-sulfonic acid sodium salt5,7-Dinitro-8-hydroxy-2-naphthalenesulfonic acid sodium saltAcid Yellow 1Flavianic acid sodium salt
Histological Staining
Naphthol Yellow S is utilised as a histological stain in microscopy. It aids in the visualisation of cellular structures and tissues, contributing to accurate diagnostic assessments.
Amino Acid and Peptide Precipitation
This compound serves as a reagent for the precipitation of amino acids and peptides. This application is significant in biochemical analysis and sample preparation.
Analytical Reagent
As an analytical reagent, Naphthol Yellow S is employed in various laboratory procedures. Its chemical properties allow for specific reactions and detections within analytical chemistry.
| Molecular weight | 358.19 |
|---|---|
| Empirical formula | C10H4N2Na2O8S |
| Grade | for microscopy (Hist.)for the precipitation (of amino acids and peptides) |
| 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.
| Colour Index Number | 10316 |
|---|
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 Naphthol Yellow S used for?
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Naphthol Yellow S is primarily used as a histological stain for microscopy, and as a reagent for the precipitation of amino acids and peptides in analytical chemistry.
What is the CAS number and formula for Naphthol Yellow S?
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The CAS number for Naphthol Yellow S is 846-70-8, and its empirical formula is C10H4N2Na2O8S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Naphthol Yellow S in a grade suitable for microscopy (Histology) and for the precipitation of amino acids and peptides. We do not represent this product as meeting USP, BP, or EP pharmacopoeia standards unless explicitly stated.
What are the safety and handling considerations for Naphthol Yellow S?
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Naphthol Yellow S requires appropriate handling. Personal protective equipment such as eyeshields and gloves should be worn, and a type N95 (US) or type P1 (EN143) respirator filter may be necessary. It is classified with WGK Germany 3, indicating a significant hazard to water.
How is Naphthol Yellow S packed and shipped?
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Naphthol Yellow S is carefully packed to ensure its integrity during transit and is exported globally by Tech Serve Solutions, adhering to all relevant shipping regulations for chemical substances.
How can I request a quote or sample of Naphthol Yellow S?
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To request a quote or a sample of Naphthol Yellow S, please contact our sales team through the website or by phone. Provide your details and the quantity required.
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