Description

3,5-Dichlorobenzaldehyde (CAS No. 10203-08-4) is a high-purity aromatic aldehyde with the molecular formula C₇H₄Cl₂O, widely utilized in organic synthesis and pharmaceutical research. This compound features two chlorine substituents at the 3 and 5 positions of the benzaldehyde ring, enhancing its reactivity in electrophilic substitution and condensation reactions. With a purity of ≥98%, it is supplied as a white to off-white crystalline powder, ensuring consistent performance in sensitive applications. Ideal for use as a key intermediate in agrochemicals, dyes, and active pharmaceutical ingredients (APIs), this product is rigorously tested via GC, HPLC, and NMR to meet stringent quality standards. Packaged under inert conditions to prevent degradation, it is suitable for laboratory and industrial-scale applications.

Properties

• CAS Number: 10203-08-4
• Complexity: 117
• IUPAC Name: 3,5-dichlorobenzaldehyde
• InChI: InChI=1S/C7H4Cl2O/c8-6-1-5(4-10)2-7(9)3-6/h1-4H
• InChI Key: CASRSOJWLARCRX-UHFFFAOYSA-N
• Exact Mass: 173.9639201
• Molecular Formula: C7H4Cl2O
• Molecular Weight: 175.01
• SMILES: C1=C(C=C(C=C1Cl)Cl)C=O
• Topological: 17.1
• Monoisotopic Mass: 173.9639201
• Synonyms: 3,5-Dichlorobenzaldehyde, 10203-08-4, Benzaldehyde, 3,5-dichloro-, M74YU7SE79, EINECS 233-499-0, NSC 109095, NSC-109095, UNII-M74YU7SE79, DTXSID2064997, 2,6-DICHLORO-4-BENZALDEHYDE, DTXCID6032699, casrsojwlarcrx-uhfffaoysa-n, inchi=1/c7h4cl2o/c8-6-1-5(4-10)2-7(9)3-6/h1-4, 3,5-Dichloro-benzaldehyde, MFCD00003352, NSC109095, 3,5-dichlorobezaldehyde, Benzaldehyde,5-dichloro-, SCHEMBL42392, SCHEMBL93189, CHEMBL4577243, 3,5-Dichlorobenzaldehyde, 97%, SBB063815, AKOS004905911, AB00316, CS-W017471, PS-6064, AC-23850, D2012, NS00023101, ST50308523, EN300-45020, F2191-0162, Z452409804

Application

3,5-Dichlorobenzaldehyde serves as a versatile building block in the synthesis of herbicides, fungicides, and pharmaceutical intermediates. Its electron-deficient aromatic ring makes it valuable in Suzuki-Miyaura coupling and other palladium-catalyzed reactions. Researchers also employ it in the preparation of Schiff bases and heterocyclic compounds for antimicrobial studies. Additionally, it is used in the development of liquid crystal materials and specialty dyes due to its stable yet reactive aldehyde group.

Safety and Hazards

GHS Hazard Statements

• H314 (95.8%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

Precautionary Statements

• P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, and P501

Hazard Classes and Categories

• Skin Corr. 1C (95.8%)

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