- ▸ Dichlorinated benzaldehyde intermediate for agrochemical and pharmaceutical actives, including azole-type routes (Agriculture, Pharmaceuticals)
- ▸ Building block for specialty chemical synthesis (Industrial Manufacturing)
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
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2,4-Dichlorobenzaldehyde is a dichloro-benzaldehyde synthesis intermediate — a building block used in the manufacture of pharmaceutical and agrochemical intermediates. Identity: CAS 874-42-0.
What it is
2,4-Dichlorobenzaldehyde (CAS 874-42-0, C7H4Cl2O) is a dichloro-benzaldehyde sold as a synthesis intermediate — a defined building block that downstream manufacturers convert into finished products.
Role in synthesis
As an aromatic aldehyde, the formyl group readily undergoes condensation, reductive amination and oxidation, while the ring halogens are substitution sites. The substitution pattern (isomer) is part of the identity — confirm the CAS to be sure the isomer matches your route, because position isomers react differently and lead to different products.
What it is used to make
It is a building block toward pharmaceutical and agrochemical intermediates. RawSource supplies the intermediate; the downstream synthesis, product registration and any application or efficacy are the responsibility of the manufacturer that uses it.
Forms, grades and handling
Supplied to a defined assay with a Certificate of Analysis (CoA) per lot; define the assay and key impurity limits your route needs. Several halo-aromatic intermediates are hazardous and some are regulated — confirm regulatory status and handling for your jurisdiction, and always consult the current Safety Data Sheet (SDS). Typical values are not a guaranteed specification; the CoA governs.
Bulk and custom-quantity supply
RawSource sources 2,4-Dichlorobenzaldehyde direct from producers in bulk and custom quantities, with CoA, TDS and SDS per lot. Tell us the assay and impurity limits and your sample/pilot/production quantity, and we will quote it and confirm supply continuity. See the full range in the intermediates guide.
Typical Properties
Typical reference values, not a specification; the Certificate of Analysis (CoA) for the lot governs.
| Property | Typical Value |
|---|---|
| Type | Dichloro-benzaldehyde |
| End-use class | Pharma & agrochemical intermediates |
| CAS Number | 874-42-0 |
| Molecular Formula | C7H4Cl2O |
| Molecular Weight | 175.01 g/mol |
| Handling | Refer to the current SDS |
Regulatory & registration requirements
- TSCA (US):
- REACH (EU): Not determined from public registry
- EC number: 212-861-1
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Frequently Asked Questions
What is 2,4-dichlorobenzaldehyde used for?
2,4-Dichlorobenzaldehyde (CAS 874-42-0) is an aromatic aldehyde intermediate for pharmaceutical and agrochemical building blocks.
Can RawSource supply 2,4-dichlorobenzaldehyde in bulk or custom quantities?
Yes — RawSource supplies 2,4-dichlorobenzaldehyde in bulk and custom (sample/pilot/production) quantities with CoA, TDS and SDS per lot. Tell us the assay, impurity limits and quantity, and we will quote it and confirm supply.
What is the REACH and TSCA regulatory status of 2,4-Dichlorobenzaldehyde?
2,4-Dichlorobenzaldehyde (CAS 874-42-0) is listed as Active on the U.S. EPA TSCA Inventory; its REACH registration status is not determined from the public ECHA registry.