Specifications
- Purity
- ≥99% (UV)
- Appearance
- Red-brown powder
Properties
- Solvents
- methanol or ethanol (1mg/ml) Inwater
- Melting Point
- 138 - 140 °C
- Density
- 1.25 g/cm3 (Predicted) (tautomer)
Documentation
- Safety Data Sheet (SDS)
- CDX P0720 MSDS_1.2.pdf
Available from stock
1-(2-Pyridylazo)-2-naphthol
- SKU
- P0720
Category: Non Fluorescent Detection & Chromogene Detection
- Synonyms
- PAN, 2-(2-Hydroxy-1-naphthylazo)-pyridine
- 85-85-8
- CAS-Number
- C15H11N3O
- Molecular Formula
- 249.27
- Molecular Weight
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
- Shipping
- AMBIENT
- Short Term Storage
- RT
- Long Term Storage
- RT
- Handling Advice
- Protect from light and moisture.
- Use / Stability
- Stable for at least 2 years after receipt when stored at RT.
- Transportation
- Not dangerous goods
- Description
- 1-(2-Pyridylazo)-2-naphthol is widely used as an indicator for complexometry. It is used as a reagent for the extraction and spectrophotometric determination (for colorimetric analysis) of many transition metal elements like arsenic, chromium, cobalt, copper, cadmium, manganese, zinc and zirconium. It is also used for the analysis of uranium and thorium in solutions. 1-(2-Pyridylazo)-2-naphthol is also commonly used as an acid-base indicator. This reagent is slightly soluble in acidic solutions and soluble in alkaline solutions. The aqueous solution is yellow at pH<12 and red at pH>12.
- Smiles
- N(=NC1=CC=CC=N1)C=2C3=C(C=CC2O)C=CC=C3
- InChi Key
- LLYOXZQVOKALCD-ISLYRVAYSA-N
- References
- (1) K.L. Cheng & R.H. Bray, Anal. Chem. 27, 782 (1955) , (2) S. Shibata, Anal. Chim. Acta 25, 348 (1961) , (3) F.H. Pollard, et al., Talanta 13, 725 (1966) , (4) A. Galik, Talanta 16, 201 (1969) , (5) L.E. Ross, et al., Talanta 16, 748 (1969) , (6) J.K. Terlouw & J.J. De Ridder, Talanta 17, 891 (1970) , (7) H. Watanabe, Talanta 21, 295 (1974) , (8) K.A. Rao & B. Rangamannar, Radioisotopes. 32, 623 (1983) , (8) J. Gao, et al., Talanta 40, 195 (1993) , (10) Z. Safari, et al., Spectrochim. Acta A Mol. Biomol. Spectrosc. 78, 1606 (2011) , (11) L. Szabo, et al., Spectrochim. Acta A Mol. Biomol. Spectrosc. 93, 266 (2012) , (12) M.A. Laskar, et al., Crit. Rev. Anal. Chem. 46, 413 (2016) (Review)
- InChi
- InChI=1S/C15H11N3O/c19-13-9-8-11-5-1-2-6-12(11)15(13)18-17-14-7-3-4-10-16-14/h1-10,19H
1-(2-Pyridylazo)-2-naphthol is widely used as an indicator for complexometry. It is used as a reagent for the extraction and spectrophotometric determination (for colorimetric analysis) of many transition metal elements like arsenic, chromium, cobalt, copper, cadmium, manganese, zinc and zirconium. It is also used for the analysis of uranium and thorium in solutions. 1-(2-Pyridylazo)-2-naphthol is also commonly used as an acid-base indicator. This reagent is slightly soluble in acidic solutions and soluble in alkaline solutions. The aqueous solution is yellow at pH<12 and red at pH>12.
Additional information
| Synonyms | PAN, 2-(2-Hydroxy-1-naphthylazo)-pyridine |
|---|---|
| Purity | ≥99% (UV) |
| Appearance | Red-brown powder |
| CAS-Number | 85-85-8 |
| Molecular Formula | C15H11N3O |
| Molecular Weight | 249.27 |
| Solvents | methanol or ethanol (1mg/ml) Inwater |
| Melting Point | 138 – 140 °C |
| Density | 1.25 g/cm3 (Predicted) (tautomer) |
| Smiles | N(=NC1=CC=CC=N1)C=2C3=C(C=CC2O)C=CC=C3 |
| InChi Key | LLYOXZQVOKALCD-ISLYRVAYSA-N |
| Shipping | AMBIENT |
| Short Term Storage | RT |
| Long Term Storage | RT |
| Handling Advice | Protect from light and moisture. |
| Use / Stability | Stable for at least 2 years after receipt when stored at RT. |
| Transportation | Not dangerous goods |
| References | (1) K.L. Cheng & R.H. Bray, Anal. Chem. 27, 782 (1955), (2) S. Shibata, Anal. Chim. Acta 25, 348 (1961), (3) F.H. Pollard, et al., Talanta 13, 725 (1966), (4) A. Galik, Talanta 16, 201 (1969), (5) L.E. Ross, et al., Talanta 16, 748 (1969), (6) J.K. Terlouw & J.J. De Ridder, Talanta 17, 891 (1970), (7) H. Watanabe, Talanta 21, 295 (1974), (8) K.A. Rao & B. Rangamannar, Radioisotopes. 32, 623 (1983), (8) J. Gao, et al., Talanta 40, 195 (1993), (10) Z. Safari, et al., Spectrochim. Acta A Mol. Biomol. Spectrosc. 78, 1606 (2011), (11) L. Szabo, et al., Spectrochim. Acta A Mol. Biomol. Spectrosc. 93, 266 (2012), (12) M.A. Laskar, et al., Crit. Rev. Anal. Chem. 46, 413 (2016) (Review) |
| InChi | InChI=1S/C15H11N3O/c19-13-9-8-11-5-1-2-6-12(11)15(13)18-17-14-7-3-4-10-16-14/h1-10,19H |
| Quantity | 5 g, 25 g, Bulk |
