Flavors & Fragrances
REACH
4-biphenylaldehyde
CAS Number
3218-36-8
EC Number
221-742-3
What is 4-biphenylaldehyde?
4-Biphenylaldehyde (CAS 3218-36-8), also known as 4-biphenylcarboxaldehyde, is an aromatic aldehyde used as a synthetic building block in specialty chemical manufacturing.
Where is 4-biphenylaldehyde used?
- Polymer and materials chemistry: monomer or crosslinking intermediate for specialty resins and liquid crystal polymers requiring rigid aromatic backbones
- Fragrance and cosmetics: floral-aldehyde character for fine fragrance and personal care compositions
- Pharmaceutical and agrochemical synthesis: intermediate for biphenyl-containing active compounds
- Photoinitiator systems and UV-curable inks: development for specialized coatings
- It serves as a synthetic building block in specialty chemical manufacturing.
Commercial specifications
- 99% purity, standard synthesis-grade specification
- Packaging in gram to kilogram quantities
Other Names (Synonyms)
(1,1'-Biphenyl)-4-carboxaldehyde|4-phenylbenzaldehyde|4-biphenylcarboxaldehyde
What are the physical properties of 4-biphenylaldehyde?
Melting Point 60-61 °C
Boiling Point 130 °C @ Press: 0.5 Torr
Density 1,107 g/cm 3
Flash Point 172°C
Appearance WHITE TO LIGHT YELLOW CRYSTALS OR CRYST. POWDER
Color White to light yellow
Form Crystals or Crystalline Powder
Water Solubility 17mg/L at 20℃
Vapor Pressure 0.025Pa at 25℃
Refractive Index 1.5994 (estimate)
Log P 2.98 at 20℃
How is 4-biphenylaldehyde classified and handled safely? Learn More
Warning
GHS07· Irritant
Hazard Statements
H302 Harmful if swallowed
H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
Which trade and regulatory codes apply to 4-biphenylaldehyde?
HS Code 29122990
WGK (Germany) 1