4-Chlorobenzaldehyde, CAS 104-88-1, is also known as p-chlorobenzaldehyde or para-chlorobenzaldehyde. It is an aromatic aldehyde containing a reactive aldehyde group and a para-substituted chloro aromatic ring, enabling condensation and substitution reactions in organic synthesis, mainly as an intermediate for pharmaceutical and fine-chemical synthesis. Confirm the required specification, packaging and documentation before ordering.
4-Chlorobenzaldehyde CAS 104-88-1
- CAS: 104-88-1
- Synonyms: 4-Chlorobenzaldehyde, p-Chlorobenzaldehyde, Para-chlorobenzaldehyde
- Einecs: 203-247-4
- Molecular Formula: C₇H₅ClO
- Grade: Confirm current product specification
- Package: Confirm packaging for the offered form
Product Description
4-Chlorobenzaldehyde
Molecular formula: C₇H₅ClO
Molecular weight: 140.57 g/mol
CAS Number: 104-88-1
Melting point: 48 °C
Boiling point: 214 °C
Acute toxicity: Harmful to aquatic life and toxic to fish; do not allow the product to enter water bodies.
Main uses: Used as an intermediate in pharmaceuticals, dyes and agrochemicals.
Storage: Store in a cool, ventilated warehouse away from fire and heat sources. Avoid contact with oxidizers, air and light, and store separately from oxidizing agents without mixing. Provide suitable fire-fighting equipment, and equip the storage area with spill emergency-treatment equipment and appropriate containment materials.
FAQ - Technical & Supply Chain
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Q:
Does CAS 104-88-1 identify the para isomer of Chlorobenzaldehyde?
A: Yes. CAS 104-88-1 identifies 4-Chlorobenzaldehyde, also called p-Chlorobenzaldehyde. The ortho and meta isomers have different CAS numbers, so both the position descriptor and CAS number should appear on the inquiry. -
Q:
What is 4-Chlorobenzaldehyde used for?
A: It is used as an intermediate for pharmaceuticals, dyes and agrochemicals, including substituted benzaldehydes and other para-chlorophenyl derivatives. The required purity and free-acid or chlorobenzoic-acid limits depend on the downstream synthesis. -
Q:
Why can 4-Chlorobenzaldehyde arrive as crystals, flakes, chunks or a fused solid?
A: Its melting range is close to normal warehouse temperatures, so the material may melt, solidify or become a supercooled liquid during transit without changing chemical identity. Confirm the offered form, pack type and unloading method before shipment. -
Q:
What should a 4-Chlorobenzaldehyde purchase specification include?
A: Specify GC assay, melting range, color and physical form, plus free acid or 4-chlorobenzoic-acid limits where the downstream synthesis is sensitive. Align the analytical methods and compare the stated batch results rather than relying on nominal purity alone. -
Q:
What storage and environmental controls apply to 4-Chlorobenzaldehyde?
A: Store cool, dry, protected from light and away from oxidizers, air and heat. It is harmful to aquatic life, so prevent spills from entering drains or water bodies and use suitable containment, disposal and emergency-response procedures.
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