2-Chloro-3-hydroxy-4-methoxybenzaldehyde
2-Chloro-3-hydroxy-4-methoxybenzaldehyde (CAS 37687-57-3), with the molecular formula CH3OC6H2Cl(OH)CHO and a molecular weight of 186.59 g/mol, is a substituted benzaldehyde derivative. This organic compound serves as a valuable building block and reactant in chemical synthesis. Its functional groups make it suitable for preparing more complex molecules, notably finding application in the development of BODIPY fluorescent sensors. Tech Serve Solutions supplies this chemical for research and development purposes.
- IUPAC
- 2-Chloro-3-hydroxy-p-anisaldehyde,2-Chloroisovanillin
- Synonyms
- 2-Chloroisovanillin2-Chloro-3-hydroxy-p-anisaldehyde

BODIPY Fluorescent Sensors
This compound is utilised as a reactant in the synthesis of BODIPY fluorescent sensors. These advanced materials are critical for various analytical and imaging applications in scientific research.
Organic Synthesis Intermediate
As a functionalised benzaldehyde, 2-Chloro-3-hydroxy-4-methoxybenzaldehyde acts as a versatile intermediate in complex organic synthesis pathways. It is employed to construct sophisticated molecular architectures.
Research and Development
Primarily used in laboratory settings, this chemical supports research initiatives across various scientific disciplines, including medicinal chemistry and materials science.
| Molecular weight | 186.59 |
|---|---|
| Linear formula | CH3OC6H2Cl(OH)CHO |
| Assay | 97% |
| Application | Reactant for:• BODIPY fluorescent sensors1,2 |
| Melting point | 204-208 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 2-Chloro-3-hydroxy-4-methoxybenzaldehyde used for?
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2-Chloro-3-hydroxy-4-methoxybenzaldehyde is primarily used as a reactant in the synthesis of BODIPY fluorescent sensors and as an intermediate in organic synthesis for research and development.
What are the CAS number and molecular formula?
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The CAS number is 37687-57-3, and the molecular formula is CH3OC6H2Cl(OH)CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chloro-3-hydroxy-4-methoxybenzaldehyde with an assay of 97%. This product is intended for research and laboratory use and is not supplied as USP, BP, EP, or any other pharmacopoeia grade.
How should 2-Chloro-3-hydroxy-4-methoxybenzaldehyde be handled?
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This compound is classified as a warning substance. It can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Always use with appropriate personal protective equipment, including eyeshields, gloves, and a dust mask type N95 (US). Handle in a well-ventilated area.
Is this chemical shipped internationally?
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Yes, Tech Serve Solutions specialises in supplying and exporting fine chemicals globally to meet the needs of researchers and industries worldwide.
How can I request a quote or sample?
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To request a quote or a sample of 2-Chloro-3-hydroxy-4-methoxybenzaldehyde, please contact our sales team through the website or by calling us directly. Specify the quantity required for your needs.
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