128-42-7

Basic information

• Product Name: 4,4'-Dinitrostilbene-2,2'-disulfonic acid
• Synonyms: 2,2’-(1,2-ethenediyl)bis(5-nitro-benzenesulfonicaci;2,2’-(1,2-ethenediyl)bis[5-nitro-benzenesulfonicaci;2,2’-(1,2-ethenediyl)bis[5-nitro-Benzenesulfonicacid;4,4’-dinitro-2,2’-stilbenedisulfonicacid;4,4’-dinitro-2’-stilbenedisulfonicacid;4,4’-dinitrostilbene-2,2’-disulphonicacid;4,4-dinitrostilbene-2,2-disulphonicacid;5,5’-Dinitrostilbene-2,2’-disulfonicacid
• CAS NO: 128-42-7
• Molecular Formula: C14H10N2O10S2
• Molecular Weight: 430.37
• EINECS: 204-885-6
• Product Categories: Intermediates of Dyes and Pigments
• Mol File: 128-42-7.mol
• Article Data: 10

Chemical Properties

• Melting Point: 266 °C
• Appearance: /
• Density: 1.6705 (rough estimate)
• Vapor Pressure: 0Pa at 25℃
• Refractive Index: 1.7000 (estimate)
• Storage Temp.: 2-8°C
• Solubility: 2.629g/L in organic solvents at 20 ℃
• PKA: -1.61±0.45(Predicted)
• Water Solubility: 105.4g/L at 37℃
• CAS DataBase Reference: 4,4'-Dinitrostilbene-2,2'-disulfonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-Dinitrostilbene-2,2'-disulfonic acid(128-42-7)
• EPA Substance Registry System: 4,4'-Dinitrostilbene-2,2'-disulfonic acid(128-42-7)

Safety Data

• Hazardous Substances Data: 128-42-7(Hazardous Substances Data)

Usage

Flammability and Explosibility

Nonflammable

Upstream product

• 99-99-0 1-methyl-4-nitrobenzene 
• 121-03-9 4-nitrotoluene-2-sulfonic acid 
• 111-46-6 diethylene glycol 
• 6404-60-0 4,4'-dinitrobibenzyl-2,2'-disulfonic acid 
• 7732-18-5 water 
• 98-95-3 nitrobenzene 
• 3709-43-1 4,4’-dinitrostilbene 2,2’-disulfonic acid disodium salt 
• 108-88-3 toluene 
• 88-20-0 o-toluenesulfonic acid 
• 78333-25-2 4,4'-dinitro-stilbene-2,2'-disulphonic acid 
• 299181-86-5 2-methyl-5-nitro-benzenesulfonic acid, 2,2-dimethylpropyl ester 

Downstream Products

• 43099-64-5 4-nitrobenzaldehyde-2-sulphonic acid 
• 28096-93-7 trans-4,4'-diaminostilbene-2,2'-disulfonic acid 
• 5136-34-5 6,6'-(ethane-1,2-diyl)bis(3-aminobenzenesuIfonic acid) 
• 78333-24-1 cis-4,4'-Dinitro-2,2'-disulfonylstilbene 
• 5968-56-9 4,4'-bis-acetylamino-stilbene-2,2'-disulfonic acid 
• 3709-43-1 4,4’-dinitrostilbene 2,2’-disulfonic acid disodium salt 
• 74121-32-7 4,4'-dinitro-2,2'-stilbenedithiol 

Related news

Kinetic study on the preparation of 4,4'-Dinitrostilbene-2,2'-disulfonic acid (cas 128-42-7) (I)-kinetic study on the oxidation of 4,4'-dinitrobibenzyl-2,2'-disulfonic acid to prepare 4,4'-Dinitrostilbene-2,2'-disulfonic acid (cas 128-42-7)09/25/2019

The aqueous air oxidation of 4, 4'-dinitrobibenzyl-2,2'-disulfonic acid (DND) to prepare 4,4'-dinitrostilbne-2,2'-disulfonic acid (DNS) is studied. It is shown that the by-product formation results from the destruction of DNS under certain conditions. Grounded on the experimental data, the rate ...detailed

Relevant articles and documents

Stilbene type compound as well as synthesis method and application thereof

The invention discloses a stilbene type compound as well as a synthesis method and application thereof, wherein the synthesis method comprises the steps: taking an intermediate 2 and an intermediate 4 as initiators, sequentially carrying out Wittig reaction, reduction reaction, amino protection reaction, condensation reaction, deprotection reaction and amidation reaction, and then refining to obtain the stilbene type compound. The synthesis process is high in controllability, used reagents are low in price, and the method is simple and easy to industrialize. The stilbene type compound can be used as a medicine for resisting tumors and viruses and treating fungal infection and cardiovascular and cerebrovascular diseases.

Dehydrogenation of nitro derivatives of bibenzyl to corresponding nitro stilbene with dioxygen catalyzed by 2,2,6,6-tetramethylpiperidine-1-oxyl

A simple and effective oxidative dehydrogenation of nitro derivatives of bibenzyl was developed using a mixture of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) and metal salts as catalyst under an atmospheric pressure of oxygen. The oxidation of several nitro derivatives of bibenzyl led to corresponding nitro stilbene in good yields, and the yields increased with the increase in the substituted nitro group on the bibenzyl. For example, the aerobic dehydrogenation of 2,2,4,4,6,6-hexanitrobibenzyl in the presence of a catalytic amount of TEMPO with metal salts gave 2,2,4,4,6,6-hexanitrostilbene in 81 % yield and 4,4-dinitrostilbene-2,2-disulfonic acid (75 %) was obtained from 4,4-dinitrobibenzyl-2,2-disulfonic acid. Iranian Chemical Society 2012.

PANEL-HEATING UNIT FOR COMBINED HEATING

The panel-heating unit (1) for combined heating that is equipped in the corners of at least one of its heating panels (2) with the fittings (3,4,5,6) for heating medium and which is alternatively equipped on its side with a compact valve garniture (7) together with the lower body (8), this one consisting of together firmly interconnected lower main return flow outlet fitting (3) and the onward flow inlet fitting (9) with the attached delivery pipe (10), which flows out into upper fitting (5), when this piece is typically equipped with regulation elements (11) to control the flow of heating medium, and the said heating unit is equipped in the way that its lower main fitting (3) and the lower secondary return flow fitting (4) located on the external side of the panel-heating unit (1) are together firmly interconnected to allow for medium circulation and the major section of the interconnection of the said fittings consists of the hollow profile (12) which is positioned parallel to the lower edge of the panel-heating unit (1) and the said profile is designed to be equipped with an electrical heater (13).