4-(2-Pyridylazo)resorcinol
4-(2-Pyridylazo)resorcinol (CAS: 1141-59-9, C11H9N3O2) is a versatile organic compound with a molecular weight of 215.21 g/mol. It is primarily recognised for its utility as an analytical reagent, particularly as a metallochromic indicator in complexometric titrations. This compound forms coloured complexes with various metal ions, enabling their quantitative determination through spectrophotometric methods. It is also employed in cell biology and histology due to its staining properties.
- IUPAC
- PAR
Metallochromic Indicator
4-(2-Pyridylazo)resorcinol serves as a sensitive indicator for the complexometric titration of metal ions such as copper, zinc, and cadmium. It forms distinct colour changes upon complexation, allowing for precise endpoint detection.
Spectrophotometric Reagent
This compound is widely used for the spectrophotometric determination of trace metal ions. It forms intensely coloured complexes that can be quantified using UV-Vis spectrophotometry, offering high sensitivity for various analytical applications.
Staining in Histology and Cell Biology
Due to its ability to interact with biological molecules, 4-(2-Pyridylazo)resorcinol finds application as a stain in histological and cytological preparations. It aids in visualising cellular structures and components.
| Molecular weight | 215.21 |
|---|---|
| Empirical formula | C11H9N3O2 |
| Assay | 96% |
| Melting point | 192-202 °C(lit.) |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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-Pyridylazo)resorcinol used for?
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4-(2-Pyridylazo)resorcinol is primarily used as a metallochromic indicator and a spectrophotometric reagent for the determination of metal ions. It also finds applications as a stain in histology and cell biology.
What are the CAS number and chemical formula for 4-(2-Pyridylazo)resorcinol?
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The CAS number is 1141-59-9, and the chemical formula is C11H9N3O2.
What grade and purity does Tech Serve Solutions supply for 4-(2-Pyridylazo)resorcinol?
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Tech Serve Solutions supplies 4-(2-Pyridylazo)resorcinol with an assay of 96%. This product is intended for laboratory and analytical use and is not represented as USP, BP, EP, or pharmacopoeia grade.
What are the safety precautions for handling 4-(2-Pyridylazo)resorcinol?
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4-(2-Pyridylazo)resorcinol is classified as a Warning. It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Users should wear eyeshields, gloves, and a dust mask type N95 (US). Ensure adequate ventilation and avoid breathing dust.
How is 4-(2-Pyridylazo)resorcinol packed and shipped?
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As a specialist global supplier, Tech Serve Solutions exports 4-(2-Pyridylazo)resorcinol worldwide, adhering to all necessary regulations for safe and compliant packaging and shipping of chemical products.
How can I request a quote or sample for 4-(2-Pyridylazo)resorcinol?
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To request a quote or a sample of 4-(2-Pyridylazo)resorcinol, please use the contact form on our website or reach out to our sales team directly.
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