1-(2-Pyridylazo)-2-naphthol
- CAS No.
- 85-85-8
- Chemical Name:
- 1-(2-Pyridylazo)-2-naphthol
- Synonyms
- PAN;Hpan;O-PAN;USP52;PAN-2;FLJ39360;KIAA0710;PAN, Reagent;PAN INDICATOR;PanIndicatorGr
- CBNumber:
- CB0322603
- Molecular Formula:
- C15H11N3O
- Molecular Weight:
- 249.27
- MDL Number:
- MFCD00004071
- MOL File:
- 85-85-8.mol
Melting point | 138-141 °C (lit.) |
---|---|
Boiling point | 392.37°C (rough estimate) |
Density | 1.1469 (rough estimate) |
refractive index | 1.5700 (estimate) |
storage temp. | Store at +5°C to +30°C. |
solubility | Practically insoluble[in water] |
form | Powder/Solid |
pka | 8.86±0.50(Predicted) |
color | green to red, upon chelation with metal |
Water Solubility | Insoluble |
BRN | 206390 |
Stability | Stable. Incompatible with strong oxidizing agents, strong bases. |
CAS DataBase Reference | 85-85-8(CAS DataBase Reference) |
FDA UNII | 095B53Y3XV |
NIST Chemistry Reference | 2-Naphthalenol, 1-(2-pyridinylazo)-(85-85-8) |
EPA Substance Registry System | 2-Naphthalenol, 1-(2-pyridinylazo)- (85-85-8) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | GHS07 |
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Signal word | Warning | |||||||||
Hazard statements | H315-H319-H335 | |||||||||
Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313 | |||||||||
Hazard Codes | Xi | |||||||||
Risk Statements | 36/37/38 | |||||||||
Safety Statements | 26-36-37/39 | |||||||||
WGK Germany | 3 | |||||||||
TSCA | Yes | |||||||||
HS Code | 29333999 | |||||||||
NFPA 704 |
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1-(2-Pyridylazo)-2-naphthol price More Price(20)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich | 101036 | 1-(2-Pyridylazo)-2-naphthol indicator grade | 85-85-8 | 25g | $636 | 2024-03-01 | Buy |
Sigma-Aldrich | 1.07531 | 1-(2-Pyridylazo)-2-naphthol (PAN) metal indicator Reag. Ph Eur | 85-85-8 | 5G | $211 | 2024-03-01 | Buy |
TCI Chemical | A5000 | PAN [=1-(2-Pyridylazo)-2-naphthol][Metal indicator and spectrophotometric reagent for transition metals] >98.0%(HPLC)(T) | 85-85-8 | 1g | $28 | 2024-03-01 | Buy |
TCI Chemical | A5000 | PAN [=1-(2-Pyridylazo)-2-naphthol][Metal indicator and spectrophotometric reagent for transition metals] >98.0%(HPLC)(T) | 85-85-8 | 5g | $79 | 2024-03-01 | Buy |
Alfa Aesar | A17475 | 1-(2-Pyridylazo)-2-naphthol, 98% | 85-85-8 | 1g | $24.65 | 2024-03-01 | Buy |
1-(2-Pyridylazo)-2-naphthol Chemical Properties,Uses,Production
Uses
1-(2-Pyridylazo)-2-naphthol is an indicator of transition metals. 1-(2-Pyridylazo)-2-naphthol is an indicator in complexometry and a reagent for the extraction and spectrophotometric determination of many transition metals. Dyes and metabolites.
Chemical Properties
orange crystals
Uses
1-(2-Pyridylazo)-2-naphthol is an indicator of transition metals. 1-(2-Pyridylazo)-2-naphthol is an indicator in complexometry and a reagent for the extraction and spectrophotometric determination of many transition metals. Dyes and metabolites.
Definition
ChEBI: 1-(2-pyridin-2-yldiazenyl)-2-naphthol is a member of naphthols.
General Description
1-(2-Pyridylazo)-2-naphthol (PAN), an orange colored dye, is commonly used as an acid-base indicator. It can form chelates with metal ions, which makes it a valuable indicator in complexometric titrations. PAN is also a spectrophotometric reagent, which can extract metal chelates into an organic solvent.
Agricultural Uses
1-(2-Pyridylazo)-2-naphthol is a hard stratum of strongly compacted soil caused by continual plowing to the same depth of hardened soil which has high clay content. The precipitated iron and silicates cement the soil particles and form pans. 1-(2-Pyridylazo)-2-naphthol often impede drainage and root growth. It can be broken up using a subsoiler .
Purification Methods
Purify PAN by repeated crystallisation from EtOH or MeOH. It can also be purified by sublimation under vacuum. Purity can be checked by TLC using a mixed solvent (pet ether/Et2O/EtOH; 10:10:1) on a silica gel plate. It has pK1 1.9 and pK2 12.2 in 20% aqueous ethoxyethanol. It chelates with copper [Pease & Williams Anal Chem 31 1046 1959]. [Beilstein 22 I 694, 22 III/IV 7073, 22/4 V 618.]
1-(2-Pyridylazo)-2-naphthol Preparation Products And Raw materials
Raw materials
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Preparation Products
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21667 | 55 |
career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29888 | 58 |
Xi'an Kono chem co., Ltd., | 029-86107037 13289246953 | info@konochemical.com | China | 2995 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | sales@chemdad.com | China | 39916 | 58 |
Shenyang Simchoice Chemical Co.,Ltd | +86-024-23769576 +86-15040101888 | sales@simchoicechem.com | China | 255 | 58 |
Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34571 | 58 |
ANHUI WITOP BIOTECH CO., LTD | +8615255079626 | eric@witopchemical.com | China | 23555 | 58 |
Dayang Chem (Hangzhou) Co.,Ltd. | 571-88938639 +8617705817739 | info@dycnchem.com | China | 52861 | 58 |
CD Chemical Group Limited | +8615986615575 | info@codchem.com | China | 20356 | 58 |
Shaanxi Didu New Materials Co. Ltd | +86-89586680 +86-13289823923 | 1026@dideu.com | China | 8672 | 58 |
View Lastest Price from 1-(2-Pyridylazo)-2-naphthol manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
---|---|---|---|---|---|---|---|---|
2021-08-12 | 1-(2-Pyridylazo)-2-naphthol
85-85-8
|
US $15.00-10.00 / KG | 1KG | 99%+ HPLC | Monthly supply of 1 ton | Zhuozhou Wenxi import and Export Co., Ltd | ||
2019-07-06 | 1-(2-Pyridylazo)-2-naphthol
85-85-8
|
US $8.00 / kg | 1kg | 99% | 10MT | Career Henan Chemical Co |
- 1-(2-Pyridylazo)-2-naphthol
85-85-8
- US $15.00-10.00 / KG
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd
- 1-(2-Pyridylazo)-2-naphthol
85-85-8
- US $8.00 / kg
- 99%
- Career Henan Chemical Co
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