p-phthalaldehyde , 98% , 623-27-8

Synonym(s):
1,4-Benzenedicarbaldehyde, Terephthalaldehyde;Benzene-1,4-dicarboxaldehyde;Terephthaldialdehyde;Terephthaldicarboxaldehyde

CAS NO.：623-27-8

Empirical Formula: C8H6O2

Molecular Weight: 134.13

MDL number: MFCD00006949

EINECS: 210-784-8

PRODUCT 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)
• Flash point: 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

Description and Uses

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].

Terephthalaldehyde (cas# 623-27-8) is a compound useful in organic synthesis.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P280a-P304+P340-P305+P351+P338-P405-P501a
• Hazard Codes: Xi
• Risk Statements: 36/37/38-36/37
• Safety Statements: 22-24/25-36-26-37/39
• WGK Germany: 1
• RTECS: WZ0430000
• Hazard Note: Irritant
• TSCA: Yes
• HS Code: 29122900