ChemicalBook > CAS DataBase List > 4-(2-PYRIDYLAZO)RESORCINOL

4-(2-PYRIDYLAZO)RESORCINOL

Product Name
4-(2-PYRIDYLAZO)RESORCINOL
CAS No.
1141-59-9
Chemical Name
4-(2-PYRIDYLAZO)RESORCINOL
Synonyms
PAR NSC 148355;PAR, Reagent;ParIndicatorGr;PAR,REAGENT,ACS;TIMTEC-BB SBB008938;4-(2-Pyridylazo)reso;P.A.R. Free Acid ACS;4-(Pyridin-2-yldiazenyl);(2-PyridylAzo)Resorcinol
CBNumber
CB1706042
Molecular Formula
C11H9N3O2
Formula Weight
215.21
MOL File
1141-59-9.mol
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4-(2-PYRIDYLAZO)RESORCINOL Property

Melting point:
192-202 °C(lit.)
Boiling point:
355.48°C (rough estimate)
Density 
1.2579 (rough estimate)
refractive index 
1.4930 (estimate)
storage temp. 
room temp
solubility 
DMSO (Slightly), Methanol (Slightly)
form 
Powder
pka
8.18±0.35(Predicted)
color 
Orange
Water Solubility 
Soluble in water (partly), and ethanol (slightly). Insoluble in ether, and low-polarity solvents.
BRN 
184665
CAS DataBase Reference
1141-59-9(CAS DataBase Reference)
EPA Substance Registry System
1,3-Benzenediol, 4-(2-pyridinylazo)- (1141-59-9)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
RIDADR 
2811
WGK Germany 
3
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
HS Code 
29333990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
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.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

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.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

P405Store locked up.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.41016
Product name
4-(2′-Pyridylazo)-resorcinol
Purity
≥98%
Packaging
5G
Price
$177
Updated
2024/03/01
Sigma-Aldrich
Product number
323209
Product name
4-(2-Pyridylazo)resorcinol
Purity
96%
Packaging
5g
Price
$184
Updated
2024/03/01
Sigma-Aldrich
Product number
323209
Product name
4-(2-Pyridylazo)resorcinol
Purity
96%
Packaging
25g
Price
$797
Updated
2024/03/01
TCI Chemical
Product number
A5001
Product name
PAR [=4-(2-Pyridylazo)resorcinol][Spectrophotometric reagent for transition metals]
Purity
>98.0%(HPLC)(T)
Packaging
1g
Price
$39
Updated
2024/03/01
TCI Chemical
Product number
A5001
Product name
PAR [=4-(2-Pyridylazo)resorcinol][Spectrophotometric reagent for transition metals]
Purity
>98.0%(HPLC)(T)
Packaging
5g
Price
$150
Updated
2024/03/01
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4-(2-PYRIDYLAZO)RESORCINOL Chemical Properties,Usage,Production

Chemical Properties

ORANGE POWDER

Uses

4-(2-Pyridylazo)resorcinol is used in studies of zinc release from Escherichia coli aspartate transcarbamoylase. It is used in cloud point extraction of copper, zinc, cadmium, and nickel in water samples. It is used in the chelate titration of aluminum, mercury, lead and nickel. It is employed as reagent in the colorimetric analysis of gold, cobalt, chromium, iron.

General Description

for synthesis

Purification Methods

Purify PAR as the sodium salt by recrystallisation from 1:1 EtOH/water. Purity can be checked by TLC using a silica gel plate and a mixed solvent (n-BuOH:EtOH:2M NH3; 6:2:2). [Beilstein 22 I 694, 22 III/IV 7074, 22/14 V 619.]

4-(2-PYRIDYLAZO)RESORCINOL Preparation Products And Raw materials

Raw materials

Preparation Products

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4-(2-PYRIDYLAZO)RESORCINOL Suppliers

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View Lastest Price from 4-(2-PYRIDYLAZO)RESORCINOL manufacturers

Hebei Chuanghai Biotechnology Co,.LTD
Product
4-(2-Pyridinylazo)resorcinol 1141-59-9
Price
US $5.00-2.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10000kg
Release date
2024-08-05
Shaanxi Dideu Medichem Co. Ltd
Product
4-(2-PYRIDYLAZO)RESORCINOL 1141-59-9
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99.0%
Supply Ability
10tons
Release date
2024-08-15
Career Henan Chemical Co
Product
4-(2-PYRIDYLAZO)RESORCINOL 1141-59-9
Price
US $8.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
10MT
Release date
2018-12-16

1141-59-9, 4-(2-PYRIDYLAZO)RESORCINOLRelated Search:


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  • Titration
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