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A17475 1-(2-Pyridylazo)-2-naphthol, 98%

CAS Number
85-85-8
Synonyms
PAN

Stock No. Size Price ($) Quantity Availability
A17475-03 1g 20.00
A17475-06 5g 64.60
A17475-14 25g 235.00
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1-(2-Pyridylazo)-2-naphthol, 98%

MDL
MFCD00004071
EINECS
201-637-9

Chemical Properties

Formula
C15H11N3O
Formula Weight
249.27
Melting point
138-141°
Storage & Sensitivity
Ambient temperatures.
Solubility
Insoluble in water.

Applications

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.

Notes

Incompatible with strong bases and strong oxidizing agents.

Literature References

Indicator for complexometry.

Reagent for spectrophotometric determination of metals.

Gupta, V. K.; Shoora, S. K.; Kumawat, L. K.; Jain, A. K. A highly selective colorimetric and turn-on fluorescent chemosensor based on 1-(2-pyridylazo)-2-naphthol for the detection of aluminium(III) ions. Sens. Actuators, B 2015, 209, 15-24.

Pfeiffer, C. R.; Fowler, D. A.; Atwood, J. L. Selective Complexation in Three Component Cocrystals Composed of Pyrogallol[4]arene and Fluorescent Probes Pyrene and 1-(2-Pyridylazo)-2-naphthol. Cryst. Growth Des. 2015, 15 (8), 3992-3998.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P362-P501c

Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Beilstein
206390
Harmonized Tariff Code
2933.39
TSCA
Yes

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