Molekula
Vanillic acid (4-Hydroxy-3-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
Vanillic acid (4-hydroxy-3-methoxybenzoic acid) is a naturally occurring phenolic compound derived from vanilla beans, widely used as a flavoring agent, antioxidant, and intermediate in pharmaceuticals, cosmetics, and food preservation. It exhibits antimicrobial properties and is commonly employed in fragrance formulations and as a research chemical. This chemical has a CAS number of 121-34-6, molecular formula HOC6H3(OCH3)CO2H, and a molecular weight of 168.15 g/mol. It is stable at ambient storage conditions but requires handling with caution, as indicated by its "Warning" signal word. Molekula supplies vanillic 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
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £46.50 per pack ex VAT · £55.80 inc. VAT
Need a different quantity or pack?
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.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Light yellow powder |
| Melting Point | 209 - 212 Deg C |
| Loss on Drying | <1.0% |
| Assay HPLC | >99% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 211.5 °C |
| Solubility (other solvents) | Slightly soluble in water; soluble in organic solvents |
| Vapour Pressure | 0.0000171 mmHg |
| pKa | pKa = 4.51 (at 25 °C) |
Source: PubChem CID 8468 (DrugBank, Joint FAO/WHO Expert Committee on Food Additives (JECFA), Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 32761487 |
| CAS Number | 121-34-6 |
| IUPAC Name | 4-hydroxy-3-methoxybenzoic acid |
| EC Number | 204-466-8 |
| Molecular Formula | HOC6H3(OCH3)CO2H |
| Molecular Weight | 168.15 |
| Exact Mass | 168.0423 |
| SMILES | COC1=C(C=CC(=C1)C(=O)O)O |
| InChIKey | WKOLLVMJNQIZCI-UHFFFAOYSA-N |
| InChI | InChI=1S/C8H8O4/c1-12-7-4-5(8(10)11)2-3-6(7)9/h2-4,9H,1H3,(H,10,11) |
| PubChem CID | 8468 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| Tariff Code | 2918999043 |
Safety & GHS
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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
- 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
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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
No alternate names recorded for this product.
Frequently asked questions
What is vanillic acid commonly used for?
Vanillic acid is primarily used in food and beverage flavoring, as a fragrance in cosmetics, and in pharmaceuticals as an antioxidant and anti-inflammatory agent.
What is the chemical formula and molecular weight of vanillic acid?
The chemical formula is **HOC₆H₃(OCH₃)CO₂H**, and the molecular weight is **168.15 g/mol**.
How should vanillic acid be stored?
Store vanillic acid at **ambient temperature** in a cool, dry place, away from direct sunlight and moisture.
What grades or purities of vanillic acid does Molekula supply?
Molekula supplies vanillic acid in **pharmaceutical (USP/EP) and food-grade (FG) purities**, typically ≥99% purity.
Can Molekula supply vanillic acid in bulk quantities?
Yes, Molekula can supply vanillic acid in **bulk quantities** (1 kg to 25 kg drums, or larger upon request).
What documentation comes with a vanillic acid order?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a **batch-specific quality report** 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.