5-Bromo-2-methoxybenzaldehyde
5-Bromo-2-methoxybenzaldehyde (CAS 25016-01-7), with the chemical formula BrC6H3(OCH3)CHO and a molecular weight of 215.04 g/mol, is an aromatic aldehyde. It serves as a valuable organic building block in chemical synthesis. This compound is primarily used as an intermediate in the preparation of more complex organic molecules, contributing to advancements in research and development across various chemical fields. Its specific structure makes it a useful starting material for targeted chemical modifications.
- IUPAC
- 5-Bromo-o-anisaldehyde
- Synonyms
- 5-Bromo-o-anisaldehyde

Preparation of Organic Acids
5-Bromo-2-methoxybenzaldehyde is a key intermediate in the synthesis of substituted cinnamic acid derivatives. For example, it has been utilised in the preparation of trans-5-bromo-2-methoxybenzylidenecyanoacetic acid, a compound valuable in organic synthesis research.
Organic Synthesis Building Block
As an aldehyde containing a bromine atom and a methoxy group on an aromatic ring, this compound offers multiple reactive sites. It is widely employed as a versatile building block for constructing complex molecular architectures in academic and industrial research settings.
Intermediate in Pharmaceutical Research
The specific structural features of 5-Bromo-2-methoxybenzaldehyde make it a useful starting material or intermediate in the multi-step synthesis of potential pharmaceutical agents or their precursors, contributing to drug discovery efforts.
| Molecular weight | 215.04 |
|---|---|
| Linear formula | BrC6H3(OCH3)CHO |
| Assay | 99% |
| Application | 5-Bromo-2-methoxybenzaldehyde was used in the preparation of trans-5-bromo-2-methoxybenzylidenecyanoacetic acid1. |
| Melting point | 116-119 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 5-Bromo-2-methoxybenzaldehyde used for?
+
5-Bromo-2-methoxybenzaldehyde (CAS 25016-01-7) is primarily used as a building block in organic synthesis and as an intermediate in the preparation of other chemical compounds, including substituted cinnamic acid derivatives.
What is the CAS number and chemical formula for 5-Bromo-2-methoxybenzaldehyde?
+
The CAS number for 5-Bromo-2-methoxybenzaldehyde is 25016-01-7, and its chemical formula is BrC6H3(OCH3)CHO.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 5-Bromo-2-methoxybenzaldehyde with a minimum assay of 99%. This product is suitable for research and chemical synthesis purposes. TSS does not represent this product as USP, BP, EP, or pharmaceutical grade.
How should 5-Bromo-2-methoxybenzaldehyde be handled safely?
+
5-Bromo-2-methoxybenzaldehyde is harmful if swallowed and causes serious eye irritation. Handle with appropriate personal protective equipment, including eyeshields and gloves. Use a type N95 (US) or P1 (EN143) respirator filter if necessary. Ensure good ventilation and avoid ingestion and eye contact. Dispose of waste according to local regulations.
How is 5-Bromo-2-methoxybenzaldehyde packed, shipped, and exported?
+
We offer 5-Bromo-2-methoxybenzaldehyde in various packaging sizes suitable for laboratory and industrial use. As a global supplier, Tech Serve Solutions is experienced in exporting chemicals worldwide, adhering to all relevant shipping regulations.
How can I request a quote or sample for 5-Bromo-2-methoxybenzaldehyde?
+
To request a quote or a sample of 5-Bromo-2-methoxybenzaldehyde, please contact our sales department through the website or by calling us directly. We will be pleased to assist you with your inquiry.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis