Isovanillic acid
Isovanillic acid (CAS 645-08-9), with the molecular formula C8H8O4 and a molar mass of 168.15 g/mol, is a valuable organic compound. It serves as a key building block in chemical synthesis, particularly in the production of complex molecules. This carboxylic acid is noted for its utility in research and development, enabling the creation of various chemical structures within laboratory settings.
- IUPAC
- 3-Hydroxy-4-methoxybenzoic acid
- Synonyms
- 3-Hydroxy-4-methoxybenzoic acid

Synthesis of Pharmaceutical Intermediates
Isovanillic acid is employed as a precursor in the synthesis of specific opiate alkaloid derivatives, such as dihydrothebainone. This application highlights its importance in the pharmaceutical research and development sector for creating complex organic molecules.
Organic Synthesis Building Block
As a versatile organic building block, isovanillic acid is used in various chemical synthesis pathways. Its functional groups allow for diverse reactions, making it suitable for constructing novel compounds in academic and industrial research.
Research and Development
This compound finds application in R&D laboratories for exploring new chemical reactions and developing synthetic methodologies. Its well-defined structure facilitates its use in targeted organic synthesis projects.
| Molecular weight | 168.15 |
|---|---|
| Linear formula | HOC6H3(OCH3)CO2H |
| Assay | 97% |
| Application | Isovanillic acid has been used in the synthesis of opiate alkaloid precursor, dihydrothebainone1. |
| Melting point | 250-253 °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 Isovanillic acid used for?
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Isovanillic acid is primarily used as a building block in organic synthesis and has been utilised in the synthesis of opiate alkaloid precursors like dihydrothebainone.
What are the CAS number and chemical formula for Isovanillic acid?
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The CAS number for Isovanillic acid is 645-08-9, and its linear chemical formula is HOC6H3(OCH3)CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Isovanillic acid with a purity of 97%. This product is intended for laboratory and research use. Tech Serve Solutions does not represent this product as USP, EP, BP, or pharmacopoeia grade.
How should Isovanillic acid be handled?
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Isovanillic acid is classified with warning signal words and hazard statements H315, H319, and H335, indicating it causes skin irritation, serious eye irritation, and may cause respiratory irritation. Appropriate personal protective equipment includes a dust mask (type N95 US), eyeshields, and gloves. Ensure good ventilation during handling.
Is Isovanillic acid exported by Tech Serve Solutions?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Isovanillic acid.
How can I obtain a quote or sample of Isovanillic acid?
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To request a quote or sample of Isovanillic acid, please contact our sales team through the website or by phone.
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