Molekula
1-(2-Pyridylazo)-2-naphthol
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Certificate of Analysis with every batch
1-(2-Pyridylazo)-2-naphthol (PAN) is a highly sensitive and selective chelating agent widely used in analytical chemistry for the spectrophotometric detection and quantification of metal ions, including calcium, magnesium, and rare earth elements. It forms brightly colored complexes with many metals, enabling precise analytical measurements in laboratories and industrial quality control. This chemical has a CAS number of 85-85-8, a molecular formula of C15H11N3O, and a molecular weight of 249.27 g/mol. It is stable at ambient storage conditions but requires careful handling, as indicated by its "Warning" signal word. Molekula supplies 1-(2-Pyridylazo)-2-naphthol from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
1-(2-Pyridylazo)-2-naphthol (PAN) is a highly sensitive and selective chelating agent widely used in analytical chemistry for the spectrophotometric detection and quantification of metal ions, including calcium, magnesium, and rare earth elements. It forms brightly colored complexes with many metals, enabling precise analytical measurements in laboratories and industrial quality control. This chemical has a CAS number of 85-85-8, a molecular formula of C15H11N3O, and a molecular weight of 249.27 g/mol. It is stable at ambient storage conditions but requires careful handling, as indicated by its "Warning" signal word. Molekula supplies 1-(2-Pyridylazo)-2-naphthol from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Pricing & pack sizes
Specifications
| Property | Value |
|---|---|
| Appearance | Deep yellow red crystal or powder |
| Melting Point | 138 - 142°C |
| Loss on Drying | ≤ 1.0% |
| Assay | ≥ 90.0% |
| Solubility in water | Soluble in water |
| Identification (IR) | Conforms to structure |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 63973572 |
| CAS Number | 85-85-8 |
| Molecular Formula | C15H11N3O |
| Molecular Weight | 249.27 |
| SMILES | C1=CC=C2C(=C1)C=CC(=C2N=NC3=CC=CC=N3)O |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2933.39.6191 |
| Tariff Code | 2933399999 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is 1-(2-Pyridylazo)-2-naphthol (PAN) commonly used for?
PAN is primarily used as a highly sensitive analytical reagent for the spectrophotometric determination of trace metals, including uranium, thorium, and rare earth elements, in environmental and industrial samples.
What is the chemical formula and molecular weight of PAN?
The chemical formula is **C15H11N3O**, and the molecular weight is **249.27 g/mol**.
How should PAN be stored?
Store PAN at **ambient temperature** in a tightly sealed container, protected from light and moisture.
What grade of PAN does Molekula supply?
Molekula supplies **analytical grade** PAN, suitable for high-precision metal analysis in laboratories.
Can Molekula supply PAN in bulk quantities?
Yes, Molekula can provide PAN in bulk, with quantities tailored to meet your research or industrial requirements—contact us for specific pricing and lead times.
What documentation comes with an order of PAN?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet detailing purity and intended use.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.