1388814-42-3

Basic information

• Product Name: 2,3,4,5-tetrakis(3,4-dimethoxyphenyl)thiophene
• Synonyms: 2,3,4,5-tetrakis(3,4-dimethoxyphenyl)thiophene
• CAS NO: 1388814-42-3
• Molecular Weight: 628.743
• Mol File: 1388814-42-3.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 2,3,4,5-tetrakis(3,4-dimethoxyphenyl)thiophene(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3,4,5-tetrakis(3,4-dimethoxyphenyl)thiophene(1388814-42-3)
• EPA Substance Registry System: 2,3,4,5-tetrakis(3,4-dimethoxyphenyl)thiophene(1388814-42-3)

Safety Data

• Hazardous Substances Data: 1388814-42-3(Hazardous Substances Data)

Upstream product

• 3958-03-0 Tetrabromothiophene 
• 122775-35-3 3,4-Dimethoxyphenylboronic acid 

Downstream Products

• 1388814-41-2 2,3,4,5-tetrakis(3,4-dihydroxyphenyl)thiophene 

Relevant articles and documents

2,3,4,5-Tetrakis(3′,4′-dihydroxylphenyl)thiophene: A new matrix for the selective analysis of low molecular weight amines and direct determination of creatinine in urine by MALDI-TOF MS

Small organic matrixes are still the most commonly used ones in matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS) because of their advantages of high sensitivity, convenience, and cost-effectiveness. However, due to the matrix interference in the low mass region, the direct analysis of low molecular weight amines in complex surroundings with conventional organic matrixes remains a challenge. Here, a new Br?nsted-Lowry acid compound 2,3,4,5-tetrakis(3′,4′- dihydroxylphenyl)thiophene (DHPT) was designed, synthesized, and applied as a matrix for analysis of low molecular weight amines by MALDI-TOF MS. DHPT displays good selectivity in the analysis of amines without matrix-related interference and the low picomole/femtomole limit-of-detection was obtained in positive ion mode. With DHPT, the metabolites including creatinine, glycine, alloxan, allantoin, and 3-hydroxyhippuric acid in human urine were directly analyzed by MALDI-TOF MS. The identity of these metabolites was confirmed by tandem mass spectrometry. Furthermore, the urine creatinine was quantitatively determined using isotope-labeled internal standard. This DHPT-assisted LDI MS method provides a general approach for both qualitative and quantitative analysis of low molecular weight amines.

Preparation method for molecular glass photoresist containing tetraphenyl thiophene structure

The invention relates to a preparation method for molecular glass photoresist containing a tetraphenyl thiophene structure. The subsequent treatment process is simplified while the yield is increasedso that industrial production can be achieved. Specifica