Description
ChemicalBook > CAS DataBase List > 4-(4-Nitrophenyl)azoresorcinol

4-(4-Nitrophenyl)azoresorcinol

Description
Product Name
4-(4-Nitrophenyl)azoresorcinol
CAS No.
74-39-5
Chemical Name
4-(4-Nitrophenyl)azoresorcinol
Synonyms
MAGNESON;MagnesonⅠ;AZO VIOLET;MAGNESON I;MagnesonIGr;MagnesonIiGr;p-diazviolet;MagnesonⅠ, AR;AZOVIOLET BENZENE;TIMTEC-BB SBB008851
CBNumber
CB0106591
Molecular Formula
C12H9N3O4
Formula Weight
259.22
MOL File
74-39-5.mol
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4-(4-Nitrophenyl)azoresorcinol Property

Melting point:
195-200 °C (dec.)(lit.)
Boiling point:
402.47°C (rough estimate)
Density 
1.3450 (rough estimate)
refractive index 
1.5700 (estimate)
storage temp. 
Store below +30°C.
form 
Powder
pka
8.05±0.35(Predicted)
color 
Orange-red to red
Odor
Odorless
Water Solubility 
Soluble in dilute sodium hydroxide. Insoluble in water.
Merck 
14,5695
BRN 
674709
Stability:
Stable. Incompatible with strong oxidizing agents, strong bases.
CAS DataBase Reference
74-39-5(CAS DataBase Reference)
EPA Substance Registry System
1,3-Benzenediol, 4-[(4-nitrophenyl)azo]- (74-39-5)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/38
Safety Statements 
26-36
WGK Germany 
3
RTECS 
VH2810000
TSCA 
Yes
HS Code 
29270000
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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.

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
114669
Product name
4-(4-Nitrophenylazo)resorcinol
Purity
Dye content 90%
Packaging
25g
Price
$67.2
Updated
2024/03/01
Sigma-Aldrich
Product number
8.41713
Product name
4-(4-Nitrophenylazo)-resorcinol
Purity
for synthesis
Packaging
25G
Price
$131
Updated
2024/03/01
Sigma-Aldrich
Product number
114669
Product name
4-(4-Nitrophenylazo)resorcinol
Purity
Dye content 90%
Packaging
100g
Price
$219
Updated
2024/03/01
TCI Chemical
Product number
N0135
Product name
Magneson
Packaging
1g
Price
$19
Updated
2024/03/01
TCI Chemical
Product number
N0135
Product name
Magneson
Packaging
25g
Price
$39
Updated
2024/03/01
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4-(4-Nitrophenyl)azoresorcinol Chemical Properties,Usage,Production

Description

Oxygen violet can be prepared by one-step reaction of p-nitroaniline and 1,3-benzenediol. Azo violet can be used to prepare an azobenzene photochromic liquid crystal compound. Photochromic liquid crystal compounds have both photochromic properties and liquid crystallinity, which has become a research hotspot in the field of information storage. Azobenzene-based liquid crystals are the most interesting photochromic liquid crystal materials in recent years due to their unique photoinduced cis-trans isomerism. Azobenzene compounds undergo reversible cis-trans isomerization under the action of light, which makes them have great potential applications in many aspects such as optical storage, photo-holography and optical information processing.

Chemical Properties

dark red to brown crystalline powder

Uses

It is a derivitized resorcinol dye compound with an absorption maximum of 432 nm. Used as a pH indicator.

Uses

4-(4-Nitrophenyl)azoresorcinol is used for the detection of magnesium with which it yields a bright blue color in alkaline solution and it also used to determine molybdenum with which it forms a red-violet complex: Nikitina, Andrianova, C.A. 75, 136789v (1971).

Definition

ChEBI: An azobenzene in which the phenyl rings are 4-nitro- and 2,4-dihydroxy-substituted respectively.

Biochem/physiol Actions

4-(4-Nitrophenylazo)resorcinol is a pH indicator.

Purification Methods

Crystallise the dye from EtOH. [Beilstein 16 H 181, 16 IV 1266.]

4-(4-Nitrophenyl)azoresorcinol Preparation Products And Raw materials

Raw materials

Preparation Products

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4-(4-Nitrophenyl)azoresorcinol Suppliers

Hubei zhonglong Kangsheng Fine Chemical Co., Ltd
Tel
027-027-83850178 18162590268
Fax
027-83850178
Email
1984393783@qq.com
Country
China
ProdList
3876
Advantage
58
Shanghai Yihui Biochemical Technology Co., LTD
Tel
17301829151 17301829151
Email
3506285926@qq.com
Country
China
ProdList
128
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006608290; 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40241
Advantage
62
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
ProdList
15848
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69
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30132
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24539
Advantage
81
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
45006
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61
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696;
Email
info@hanhongsci.com
Country
China
ProdList
42983
Advantage
64
Shandong Xiya Chemical Co., Ltd
Tel
400-9903999 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18737
Advantage
57
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View Lastest Price from 4-(4-Nitrophenyl)azoresorcinol manufacturers

Hebei Duling International Trade Co. LTD
Product
4-(4-Nitrophenyl)azoresorcinol 74-39-5
Price
US $20.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
5000 tons
Release date
2023-02-02
Hebei Guanlang Biotechnology Co,.LTD
Product
4-(4-Nitrophenylazo)resorcinol 74-39-5
Price
US $5.00-2.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10000kg
Release date
2023-05-31
Zhuozhou Wenxi import and Export Co., Ltd
Product
4-(4-NITROPHENYLAZO)RESORCINOL 74-39-5
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-08-10

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