- Terephthalaldehyde
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- $1.00 / 1kg
-
2025-11-14
- CAS:623-27-8
- Min. Order: 1kg
- Purity: 99%
- Supply Ability: 10 mt
- Terephthalaldehyde
-
- $0.00 / 1kg
-
2025-11-14
- CAS:623-27-8
- Min. Order: 1kg
- Purity: 98%min
- Supply Ability: 10000kg
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| | Terephthalaldehyde Basic information |
| | Terephthalaldehyde Chemical Properties |
| Melting point | 114-116 °C (lit.) | | Boiling point | 245-248 °C (lit.) | | density | 1,06 g/cm3 | | vapor pressure | 0.25-0.46Pa at 20-25℃ | | refractive index | 1.4800 (estimate) | | Fp | 76 °C | | storage temp. | Store below +30°C. | | solubility | 3g/l | | form | Crystalline Powder | | color | White to light yellow | | Water Solubility | 3 g/L (50 ºC) | | Sensitive | Air Sensitive | | BRN | 385863 | | InChIKey | KUCOHFSKRZZVRO-UHFFFAOYSA-N | | LogP | 1 at 20.1℃ and pH6.6-6.8 | | CAS DataBase Reference | 623-27-8(CAS DataBase Reference) | | NIST Chemistry Reference | 1,4-Benzenedicarboxaldehyde(623-27-8) | | EPA Substance Registry System | 1,4-Benzenedicarboxaldehyde (623-27-8) |
| | Terephthalaldehyde Usage And Synthesis |
| Description | Terephthalaldehyde is an aromatic dialdehyde. Theoretically, the two aldehydes of terephthalaldehyde (TPA) are equivalent, so the single or double Schiff base from TPA and d-glucosamine (Glc) may be formed at the same time. It is used as an intermediate for the preparation of dyes and fluorescent whitening agents and in the synthesis of polyimines by reacting with aliphatic diamines. It is also used as a precursor for the preparation of paramagnetic microporous polymeric organic frameworks (POFs) through copolymerization with pyrrole, indole, and carbazole. As a good crosslinking agent, it could used in crosslinked chitosan hydrogel for the selective removal of anionic dyes[1].
| | Chemical Properties | WHITE TO LIGHT YELLOW CRYSTALLINE POWDER | | Uses | Terephthalaldehyde (cas# 623-27-8) is a compound useful in organic synthesis. | | Synthesis Reference(s) | Organic Syntheses, Coll. Vol. 3, p. 788, 1955
Tetrahedron Letters, 36, p. 2285, 1995 DOI: 10.1016/0040-4039(95)00191-E | | Purification Methods | Terephthalaldehyde [623-27-8] M 134.1, m 116o, b 245 -248o/771mm. Crystallise terephthalaldehyde from water. [Beilstein 7 IV 2140.] | | References | [1] Weng Q, et al. Controllable Synthesis and Biological Application of Schiff Bases from d-Glucosamine and Terephthalaldehyde. ACS Omega, 2020; 5: 24864–24870. |
| | Terephthalaldehyde Preparation Products And Raw materials |
| Raw materials | Nitric acid-->Chlorine-->P-XYLENE | | Preparation Products | 1,4-Bis(4-cyanostyryl)benzene-->1,4-BIS(2-METHYLSTYRYL)BENZENE-->1-(2-Cyanostyryl)-4-(4-cyanostyryl)benzene-->Fluorescent brightener PS-1-->2,2',5,5'-TETRAMETHYLBIPHENYL-->4-(BROMODIFLUOROMETHYL)-1-(DIFLUOROMETHYL)BENZENE-->4-PHENYLENEDIACRYLIC ACID-->1,4-Bis(2-cyanostyryl)benzene-->4',4''''-(1,4-PHENYLENE)BIS(2,2':6',2''-TERPYRIDINE)-->4-CHLOROMETHYLBENZALDEHYDE; >95%DISCONTINUED 10/25/01-->1,4-Phenylenediacetonitrile-->Terephthalic acid-->N,N'-TEREPHTHALYLIDENEDIANILINE |
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