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

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1-(2-Pyridylazo)-2-naphthol Property

Melting point:: 138-141 °C (lit.)
Boiling point:: 392.37°C (rough estimate)
Density: 1.1469 (rough estimate)
bulk density: 190kg/m3
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
λmax: 461-465 nm in ethanol
ε(extinction coefficient): ≥15000 at 462-468nm in methanol at 0.01g/L
>35,000 at 222-228nm in methanol at 0.01g/L
>9,000 at 300-306nm in methanol at 0.01g/L
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)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-36-37/39
WGK Germany: 3
TSCA: Yes
HS Code: 29333999

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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.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 101036
Product name: 1-(2-Pyridylazo)-2-naphthol
Purity: indicator grade
Packaging: 25g
Price: $636
Updated: 2024/03/01

Sigma-Aldrich

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

TCI Chemical

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

TCI Chemical

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

Alfa Aesar

Product number: A17475
Product name: 1-(2-Pyridylazo)-2-naphthol, 98%
Packaging: 1g
Price: $24.65
Updated: 2024/03/01

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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

Cyclohexane Carbon dioxide Sodium cyanide weak 3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropanecarbonyl chloride 2-Aminopyridine Ethyl nitrite

Preparation Products

CARAMEL polyaniline composite film

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View Lastest Price from 1-(2-Pyridylazo)-2-naphthol manufacturers

Zhuozhou Wenxi import and Export Co., Ltd

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

Career Henan Chemical Co

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

85-85-8, 1-(2-Pyridylazo)-2-naphtholRelated Search:

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PAN [=1-(2-Pyridylazo)-2-naphthol]

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1-(2-PYRIDYLAZO)-2-NAPHTHOL (PAN) METAL

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1-(2-Pyridylazo)-2-naphthol 〔PAN〕

1-(2-Pyridylazo)-2-naphtholIndicator grade, ≥ 98% (Assay)

1-(2-Pyridylazo)-2-Naphthol≥ 98% (Assay)

1-(2-Pyridylazo)-2-naphthol (PAN) metal indicator Reag. Ph Eur

Na+ CP type &alpha

1-(2-PYRIDYLAZO)-2-NAPHTHOL SOLUTION, 0.1%, In ETHYL ALCOHOL1-(2-PYRIDYLAZO)-2-NAPHTHOL SOLUTION, 0.1%, In ETHYL ALCOHOL1-(2-PYRIDYLAZO)-2-NAPHTHOL SOLUTION, 0.1%, In ETHYL ALCOHOL

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PAN [=1-(2-Pyridylazo)-2-naphthol] [Metal indicator and spectrophotometric reagent for transition metals]

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PanIndicatorGr

(2-PyridylAzo)-2-Naphthol