Naphthol AS
Naphthol AS (CAS: 92-77-3), with the molecular formula C17H13NO2 and a molecular weight of 263.29 g/mol, is a chemical compound primarily utilised as a dye intermediate. It finds applications in various staining procedures within cell biology, hematology, and histology due to its properties as a stain and dye. This compound is supplied by Tech Serve Solutions for laboratory and research purposes.
- IUPAC
- 3-Hydroxy-2-naphthoic acid anilide
- Synonyms
- 3-Hydroxy-2-naphthoic acid anilide
Histological Staining
Naphthol AS serves as a key component in various staining techniques used in histology and hematology. It aids in the visualisation of cellular structures and components under microscopic examination, crucial for diagnostic pathology.
Cell Biology Research
In cell biology, Naphthol AS can be employed in specific staining protocols to identify or differentiate cellular elements. Its properties are valuable for researchers investigating cellular morphology and processes.
Dye Intermediate
As a recognised dye intermediate, Naphthol AS is used in the synthesis of other complex dyes and pigments. Its chemical structure lends itself to further modification for various industrial colourant applications.
| Molecular weight | 263.29 |
|---|---|
| Empirical formula | C17H13NO2 |
| Assay | 99% |
| Melting point | 246-248 °C(lit.) |
Hazard statements
- H317May cause an allergic skin reaction
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi,N |
| Risk statements (R) | 43-51/53 |
| Safety statements (S) | 36/37-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Colour Index Number | 37505 |
|---|---|
| Absorption | λmax 394 nm |
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 AS used for?
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Naphthol AS (CAS: 92-77-3) is primarily used in histological and hematological staining procedures, and in cell biology research. It also functions as a dye intermediate.
What are the CAS number and molecular formula for Naphthol AS?
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The CAS number for Naphthol AS is 92-77-3, and its molecular formula is C17H13NO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Naphthol AS with an assay of 99%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated.
How should Naphthol AS be handled safely?
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Naphthol AS is classified with a GHS07 symbol and a 'Warning' signal word, with hazard statement H317 (May cause an allergic skin reaction). Appropriate personal protective equipment includes a dust mask type N95 (US), eyeshields, faceshields, and gloves. Handle in a well-ventilated area.
How is Naphthol AS packed, shipped, and exported?
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Naphthol AS is available for export globally by Tech Serve Solutions. Packaging details are provided upon request and adhere to international shipping regulations for hazardous materials like UN 3077, Class 9, Packing Group III.
How can I request a sample or quote for Naphthol AS?
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To request a sample or a quote for Naphthol AS, please contact the Tech Serve Solutions sales team through our website or by telephone.
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