7388-31-0

Basic information

• Product Name: 1,1-Dichloro-2,2-bis(p-methoxyphenyl)ethane
• Synonyms: 1,1'-(2,2-Dichloroethylidene)bis(4-methoxybenzene);1,1-Dichloro-2,2-bis(p-methoxyphenyl)ethane
• CAS NO: 7388-31-0
• Molecular Formula: C₁₆H₁₆Cl₂O₂
• Molecular Weight: 311.203
• Mol File: 7388-31-0.mol
• Article Data: 7

Chemical Properties

• Melting Point: 116-117.5 °C
• Boiling Point: 426°Cat760mmHg
• Flash Point: 149.6°C
• Appearance: /
• Density: 1.209g/cm³
• CAS DataBase Reference: 1,1-Dichloro-2,2-bis(p-methoxyphenyl)ethane(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1-Dichloro-2,2-bis(p-methoxyphenyl)ethane(7388-31-0)
• EPA Substance Registry System: 1,1-Dichloro-2,2-bis(p-methoxyphenyl)ethane(7388-31-0)

Safety Data

• Hazardous Substances Data: 7388-31-0(Hazardous Substances Data)

Usage

General Description

1,1-Dichloro-2,2-bis(p-methoxyphenyl)ethane, commonly known as p,p'-DDE, is a chemical compound that belongs to the class of organic compounds known as chlorobenzenes. It is an environmental pollutant and persistent organic pollutant that is formed as a breakdown product of DDT, a notorious pesticide. p,p'-DDE is highly toxic and has been found to have detrimental effects on both humans and wildlife. It is known to disrupt the endocrine system, causing hormonal imbalances and reproductive issues. Additionally, it has been linked to various health problems such as cancer, immune system dysfunction, and developmental delays. Due to its harmful effects, many countries have banned the production and use of p,p'-DDE, but it still persists in the environment due to its long half-life and resistance to degradation.

Upstream product

• 60-29-7 diethyl ether 
• 72-43-5 Methoxychlor 
• 925-90-6 ethylmagnesium bromide 
• 7647-01-0 hydrogenchloride 
• 79-36-7 dichloroacethyl chloride 
• 100-66-3 methoxybenzene 
• 35166-78-0 cyclohexylmethyl magnesium bromide 
• 79-02-7 2,2-dichloroacetaldehyde 
• 619-33-0 dichloroacetaldehyde diethyl acetal 

Downstream Products

• 2132-66-3 2-chloro-1,1-bis-(4-methoxy-phenyl)-ethene 
• 4705-34-4 1,2-bis(4-methoxyphenyl)ethene 
• 7647-01-0 hydrogenchloride 
• 18523-10-9 1,1-Di--2-phenylthio-aethylen 
• 4356-69-8 1,1-bis-(4-methoxyphenyl)ethylene 

Relevant articles and documents

Direct electrochemical reduction of 4,4-(2,2,2-trichloroethane-1,1-diyl)bis(methoxybenzene) (methoxychlor) at carbon and silver cathodes in dimethylformamide

Cyclic voltammetry and controlled-potential (bulk) electrolysis have been employed to investigate the electrochemical reduction of 4,4-(2,2,2-trichloroethane-1,1-diyl)bis(methoxybenzene), commonly known as the pesticide methoxychlor, at glassy carbon and silver cathodes in dimethylformamide (DMF) containing 0.050 M tetra-n-butylammonium tetrafluoroborate (TBABF4). Reduction of methoxychlor at both glassy carbon and silver shows four voltammetric peaks, the first three of which are associated with cleavage of carbon–chlorine bonds; the fourth peak is assigned to reduction of 4,4-(ethene-1,1-diyl)bis(methoxybenzene). Bulk electrolyses of methoxychlor at reticulated vitreous carbon and silver mesh cathodes at potentials corresponding to each of the first three voltammetric peaks were conducted; coulometric n values and product distributions (determined by means of GC and GC–MS techniques) depend on potential. In particular, two completely dechlorinated products, namely 4,4-(ethane-1,1-diyl)bis(methoxybenzene) and 4,4-(ethene-1,1-diyl)bis(methoxybenzene) have been identified and quantitated. A mechanistic scheme is proposed to account for the formation of the various products.

Platinum on carbon-catalyzed precise reduction control of trichloromethyl to Geminal-dichloromethyl groups

Geminal-dichloromethyl derivatives could be efficiently synthesized by the highly chemoselective platinum on carbon-catalyzed mono-dechlorination of trichloromethyl substrates in dimethylacetamide (DMA) as a specific solvent at 25 °C under a hydrogen atmosphere. Copyright

SULFURIC ACID ESTERS OF SUGAR ALCOHOLS

Compounds of the formula STR1 wherein n 1-n 9 are each independently 0 or 1;m 1-m 9 are each independently 0 or 1, but with the proviso that at least one of m 1, m 2 and m. sup.3, at least one of m 4, m 5 and m 6 and, when present, at least one of m 7, m 8 and m 9 is 1; and whereinX. sup.1-X 18 each independently is--O--,--CONR 1,--NR 1 CO--or--NR 1--;R 1 is hydrogen or lower alkyl;W is a benzene or s-triazine; Y. sup.1-Y 9 each independently is an aromatic ring systems;A 1-A 3 each independently is a residue of a sugar alcohol devoid of the 1-hydroxy group or a derivative thereof, a residue of a sugar acid devoid of the 1-carboxy group or a derivative thereof or tris-(hydroxymethyl)-methyl;D is the di-residue of a sugar alcohol devoid of 2 hydroxy groups or a derivative thereof or the di-residue of a sugar dicarboxylic acid devoid of 2 carboxy group or a derivative thereof;Q 1-Q. sup.3 and Z 1-Z3 each independently are the di-residue of a sugar alcohol devoid of 2 hydroxy groups or a derivative thereof or the di-residue of a sugar dicarboxylic acid devoid of 2 carboxy groups or a derivative thereof or didesoxyglycopyranoside or a derivative thereof, wherein at least one hydroxy group of residues A 1-A 3, D, Q 1-Q 3 and Z. sup.1-Z 3 is esterified with sulfuric acid, and pharmaceutically usable salts thereof are useful for the treatment of disorders which are characterized by excessive or destructive proliferation of smooth muscle cells.