Molekula
2-Hydroxy-4-methoxybenzoic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
2-Hydroxy-4-methoxybenzoic acid, also called 4-methoxysalicylic acid or 2-hydroxy-p-anisic acid, is an organic compound primarily used in pharmaceuticals and as a precursor in organic synthesis. It appears as a white to off-white crystalline powder. This chemical has a CAS number of 2237-36-7, a molecular formula of CH3OC6H3(OH)CO2H, and a molecular weight of 168.15 g/mol. It is stable under ambient storage conditions and carries the signal word Warning, as it may cause skin, eye and respiratory irritation (H315, H319, H335). Molekula supplies 2-Hydroxy-4-methoxybenzoic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
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Specifications
| Property | Value |
|---|---|
| Appearance | White to Off-white/light yellow powder |
| Melting Point | 156 - 162°C |
| Identification (IR) | Conforms to Reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90032232 |
| CAS Number | 2237-36-7 |
| IUPAC Name | 2-hydroxy-4-methoxybenzoic acid |
| EC Number | 218-801-0 |
| Molecular Formula | CH3OC6H3(OH)CO2H |
| Molecular Weight | 168.15 |
| Exact Mass | 168.0423 |
| SMILES | COC1=CC(=C(C=C1)C(=O)O)O |
| InChIKey | MRIXVKKOHPQOFK-UHFFFAOYSA-N |
| InChI | InChI=1S/C8H8O4/c1-12-5-2-3-6(8(10)11)7(9)4-5/h2-4,9H,1H3,(H,10,11) |
| PubChem CID | 75231 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2918297500 |
| Tariff Code | 2918999090 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+330 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 2-Hydroxy-p-anisic Acid
- 4-methoxy-2-hydroxobenzoic acid
- 4-Methoxysalicylic acid
- Benzoic acid, 2-hydroxy-4-methoxy-
- DIOXYBENZONE_met015
- NCIOpen2_001552
- OXYBENZONE_met012
- s5160
Frequently asked questions
What is 2-Hydroxy-4-methoxybenzoic acid (CAS 2237-36-7) commonly used for?
This compound is primarily used as a precursor in the synthesis of pharmaceuticals and agrochemicals, and as a reference compound in studies of oxybenzone and dioxybenzone, of which it is a known metabolite.
What is the molecular formula and molecular weight of 2-Hydroxy-4-methoxybenzoic acid?
The molecular formula is CH₃OC₆H₃(OH)CO₂H, and the molecular weight is 168.15 g/mol.
How should 2-Hydroxy-4-methoxybenzoic acid be stored?
Store at ambient temperature in a cool, dry place, away from direct sunlight and incompatible materials.
What purity grades are available for this product?
We supply technical grade (98%+ purity) and pharmaceutical/analytical grade upon request—confirm your needs for exact specifications.
Can Molekula supply 2-Hydroxy-4-methoxybenzoic acid in bulk quantities?
Yes, we offer bulk packaging options (e.g., 5kg, 25kg, and larger drums) for industrial and commercial customers—contact us for pricing and lead times.
What documentation is provided with an order of this chemical?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.