Terephthalaldehyde CAS#623-27-8

Terephthalaldehyde CAS#623-27-8

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Important Fine Chemical Intermediate: Terephthalaldehyde is a key downstream product of paraxylene and an essential raw material in fine chemical production.

High Reactivity for Polymerization: With two active aldehyde groups, it can undergo self-polymerization or copolymerization, enabling the synthesis of various polymer materials.

Versatile Material Applications: It is widely used in the production of fluorescent materials, catalyst carriers, and other high-performance polymer products.

Flexible Production Pathways: It can be manufactured through established processes such as chlorination of p-xylene followed by hydrolysis, ensuring reliable industrial supply.
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Product Description

Melting point114-116 °C (lit.)
Boiling point245-248 °C (lit.)
Density1,06 g/cm3
Vapor pressure0.25-0.46Pa at 20-25℃
Refractive index1.4800 (estimate)
Fp76 °C
Storage tempStore below +30°C.
Solubility3g/l
FormCrystalline Powder
ColorWhite to light yellow
Water Solubility3 g/L (50 ºC)
SensitiveAir Sensitive
BRN385863
InChIKeyKUCOHFSKRZZVRO-UHFFFAOYSA-N
LogP1 at 20.1℃ and pH6.6-6.8
CAS DataBase Reference623-27-8(CAS DataBase Reference)
NIST Chemistry Reference1,4-Benzenedicarboxaldehyde(623-27-8)
EPA Substance Registry System1,4-Benzenedicarboxaldehyde (623-27-8)
Hazard CodesXi
Risk Statements36/37/38-36/37
Safety Statements22-24/25-36-26-37/39
WGK Germany1
RTECSWZ0430000
Hazard NoteIrritant
TSCAYes
HS Code29122900
Hazardous Substances Data623-27-8(Hazardous Substances Data)


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