1-(2-Pyridylazo)-2-naphthol
Uses- Product Name
- 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
- Formula Weight
- 249.27
- MOL File
- 85-85-8.mol
1-(2-Pyridylazo)-2-naphthol Property
- 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.
- pka
- 8.86±0.50(Predicted)
- form
- Powder/Solid
- 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)
- NIST Chemistry Reference
- 2-Naphthalenol, 1-(2-pyridinylazo)-(85-85-8)
- EPA Substance Registry System
- 2-Naphthalenol, 1-(2-pyridinylazo)- (85-85-8)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36-37/39
- WGK Germany
- 3
- TSCA
- Yes
- HS Code
- 29333999
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405Store locked up.
N-Bromosuccinimide Price
- Product number
- 101036
- Product name
- 1-(2-Pyridylazo)-2-naphthol
- Purity
- indicator grade
- Packaging
- 25g
- Price
- $636
- Updated
- 2024/03/01
- Product number
- 1.07531
- Product name
- 1-(2-Pyridylazo)-2-naphthol (PAN)
- Purity
- metal indicator Reag. Ph Eur
- Packaging
- 5G
- Price
- $211
- Updated
- 2024/03/01
- Product number
- A5000
- Product name
- PAN [=1-(2-Pyridylazo)-2-naphthol][Metal indicator and spectrophotometric reagent for transition metals]
- Purity
- >98.0%(HPLC)(T)
- Packaging
- 1g
- Price
- $28
- Updated
- 2024/03/01
- Product number
- A5000
- Product name
- PAN [=1-(2-Pyridylazo)-2-naphthol][Metal indicator and spectrophotometric reagent for transition metals]
- Purity
- >98.0%(HPLC)(T)
- Packaging
- 5g
- Price
- $79
- Updated
- 2024/03/01
- Product number
- A17475
- Product name
- 1-(2-Pyridylazo)-2-naphthol, 98%
- Packaging
- 1g
- Price
- $24.65
- Updated
- 2024/03/01
1-(2-Pyridylazo)-2-naphthol Chemical Properties,Usage,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
Preparation Products
1-(2-Pyridylazo)-2-naphthol Suppliers
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- Country
- Poland
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View Lastest Price from 1-(2-Pyridylazo)-2-naphthol manufacturers
- Product
- 1-(2-Pyridylazo)-2-naphthol 85-85-8
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-08-11
- Product
- 1-(2-Pyridylazo)-2-naphthol 85-85-8
- Price
- US $8.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 10MT
- Release date
- 2018-12-16