CAS Registry Number

CAS 2420-26-0 — 4-Chlorosalicylaldehyde

4-Chlorosalicylaldehyde is an aromatic aldehyde featuring a chlorine substituent and hydroxyl group on a benzene ring, widely used in organic synthesis, pharmaceutical intermediates, and fragrance production. It serves as a key building block for dyes, agrochemicals, and fine chemicals due to its reactive functional groups. CAS 2420-26-0, molecular formula ClC6H3(OH)CHO, molecular weight 156.57 g/mol. Store at ambient conditions. Signal word: Warning. Molekula supplies 4-Chlorosalicylaldehyde from research to bulk quantities with full documentation and ISO 9001:2015 traceability.