3525-51-7

Basic information

• Product Name: TEREPHTHALBIS(P-ANISIDINE)
• Synonyms: N,N'-(1,4-PHENYLENEDIMETHYLIDENE)BIS(4-METHOXYANILINE);N,N'-TEREPHTHALYLIDENE-BIS(4-METHOXYANILINE);N,N'-TEREPHTHALYLIDENEDI-P-ANISIDINE;TEREPHTHALBIS(4-METHOXYANILINE);TEREPHTHALBIS(P-ANISIDINE);Terephthalbisanisidine;N,N'-TEREPHTHALYLIDENE-BIS(4-METHOXYANI&;Terephthalbis(4-methoxyaniline), Terephthalbis(p-anisidine), N,Nμ-Terephthalylidenedi-p-anisidine, N,Nμ-(1,4-Phenylenedimethylidene)bis(4-methoxyaniline)
• CAS NO: 3525-51-7
• Molecular Formula: C₂₂H₂₀N₂O₂
• Molecular Weight: 344.41
• Product Categories: Building Blocks;Chemical Synthesis;Imines/Amidines;Nitrogen Compounds;Organic Building Blocks
• Mol File: 3525-51-7.mol
• Article Data: 11

Chemical Properties

• Melting Point: 223-227 °C(lit.)
• Boiling Point: 530.8 °C at 760 mmHg
• Flash Point: 219.5 °C
• Appearance: /
• Density: 1.07 g/cm³
• Vapor Pressure: 8.1E-11mmHg at 25°C
• Refractive Index: 1.564
• CAS DataBase Reference: TEREPHTHALBIS(P-ANISIDINE)(CAS DataBase Reference)
• NIST Chemistry Reference: TEREPHTHALBIS(P-ANISIDINE)(3525-51-7)
• EPA Substance Registry System: TEREPHTHALBIS(P-ANISIDINE)(3525-51-7)

Safety Data

• Hazard Codes: Xn
• Statements: 36/37/38-42/43
• Safety Statements: 26-36/37/39-45
• WGK Germany: 3
• Hazardous Substances Data: 3525-51-7(Hazardous Substances Data)

Usage

Description

TEREPHTHALBIS(P-ANISIDINE) is a chemical compound that serves as a crucial raw material in the production of dyes, pigments, and optical brighteners. It is a bis(anisidine) derivative of terephthalic acid, characterized by its molecular structure which features two p-anisidine molecules bonded to a terephthalic acid core. TEREPHTHALBIS(P-ANISIDINE) plays a significant role as an intermediate in the synthesis of a variety of dyes and pigments, making it indispensable for numerous industrial applications.

Uses

Used in Textile Industry:
TEREPHTHALBIS(P-ANISIDINE) is used as a key intermediate for synthesizing dyes and pigments, which are essential for coloring fabrics and textiles. Its presence in this industry is vital for creating a diverse range of colors and hues in clothing and other textile products.
Used in Paper Industry:
In the paper industry, TEREPHTHALBIS(P-ANISIDINE) is utilized as a component in the production of pigments and dyes that are used for coloring and enhancing the appearance of paper products. This contributes to the aesthetic appeal and visual quality of various paper items.
Used in Plastics Industry:
TEREPHTHALBIS(P-ANISIDINE) is employed as a raw material in the creation of dyes and pigments for the plastics industry. These additives are incorporated into plastic materials to provide color and improve the overall appearance of plastic products.
Used in Detergent Production:
TEREPHTHALBIS(P-ANISIDINE) is used as a component in the manufacturing of optical brighteners for detergents. These brighteners enhance the whiteness and brightness of fabrics, making them appear cleaner and more vibrant.
Used in Anti-Corrosion Coating Manufacturing:
In the coatings industry, TEREPHTHALBIS(P-ANISIDINE) is utilized in the production of anti-corrosion coatings for metals. These coatings protect metal surfaces from corrosion, extending their lifespan and maintaining their structural integrity.
Overall, TEREPHTHALBIS(P-ANISIDINE) is a versatile chemical compound with applications across various industries, including textile, paper, plastics, detergents, and anti-corrosion coatings, due to its role in the synthesis of dyes, pigments, and optical brighteners.

InChI:InChI=1/C22H20N2O2/c1-25-21-11-7-19(8-12-21)23-15-17-3-5-18(6-4-17)16-24-20-9-13-22(26-2)14-10-20/h3-16H,1-2H3/b23-15+,24-16+

Upstream product

• 623-27-8 terephthalaldehyde, 
• 104-94-9 4-methoxy-aniline 

Downstream Products

• 1306767-59-8 Rh₂Cl₂(C₅(CH₃)5)2C₆H₂(CHNC₆H₄OCH₃)2 
• 1231760-69-2 ((IrCl((CH₃)5C₅))N(C₆H₄(OCH₃))CH)2(C₆H₂) 
• 1208-86-2 N-(4-methoxyphenyl)phenylamine 

Relevant articles and documents

An extending evidence of molecular conformation on spectroscopic properties of symmetrical bis-Schiff bases

The relationship between the molecular conformation and spectroscopic properties of symmetrical bis-Schiff bases, was explored experimentally. The synthesis, crystal structures, and spectroscopic behaviors of symmetrical bis-Schiff bases derived from 1,4-

Addition of dimethyl phosphite to N,N'-dialkyl-and-diaryl terephthalaldimines and its stereochemistry contrary to behavior of other analogues

The addition of dimethyl phosphite to N,N'-terephthalylidene-alkyl- (or aryl-) amines resulted in new tetramethyl 1,4-phenylene-bis-(N-alkylaminomethyl)-phosphonates in moderate yields. The stereochemical behavior of these reactions was studied by NMR, de

Highly anti-anti selective synthesis of bis-β-amino ketones via three-component direct Mannich-type reaction of terephthalaldehyde catalyzed by ZrOCl2·8H2O

At room temperature, zirconium oxychloride (ZrOCl2· 8H2O) efficiently catalyzes the direct Mannich-type reaction of a variety of in situ generated bis-imines using terephthalaldehyde and anilines with ketones in a three-component reaction at room temperature. The reaction proceeds rapidly and affords the corresponding bis-β-amino ketones in good-to-high yields with good-to-excellent anti-anti selectivity.