Molekula
3,5-Dihydroxybenzoic 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
3,5-Dihydroxybenzoic acid is an organic compound featuring two hydroxyl groups and a carboxylic acid functional group, widely used as a precursor in pharmaceutical synthesis and polymer chemistry. It is also employed in the production of antioxidants and UV absorbers. Laboratories also use it as a matrix compound for MALDI mass spectrometry of synthetic polymers. Catalogue details: CAS 99-10-5, molecular formula (HO)₂C₆H₃CO₂H, molecular weight 154.12 g/mol. Store at ambient conditions. Signal word: Warning. Molekula supplies 3,5-Dihydroxybenzoic 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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Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to Beige powder |
| Melting Point | ≥ 235°C (dec.) |
| Solubility | Clear to slightly hazey solution [50mg/ml, 25°C (Ethanol)] |
| Purity (Titration by NaOH) | ≥ 95% |
| Identification (IR) | Conforms to Reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 237 °C |
| Vapour Pressure | 0.0000021 mmHg |
Source: PubChem CID 7424 (Human Metabolome Database (HMDB), Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 90029997 |
| CAS Number | 99-10-5 |
| IUPAC Name | 3,5-dihydroxybenzoic acid |
| EC Number | 202-730-7 |
| Molecular Formula | (HO)2C6H3CO2H |
| Molecular Weight | 154.12 |
| Exact Mass | 154.0266 |
| SMILES | C1=C(C=C(C=C1O)O)C(=O)O |
| InChIKey | UYEMGAFJOZZIFP-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H6O4/c8-5-1-4(7(10)11)2-6(9)3-5/h1-3,8-9H,(H,10,11) |
| PubChem CID | 7424 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29182965 |
| Tariff Code | 2918290090 |
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
- P302+352 IF ON SKIN: Wash with soap and water
- 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, English (US), 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
- ??-resorcylic acid
- 3,5-Dihydroxy b
- 3,5-Dihydroxy-benzoicaci
- 3,5-dihydroxylbenzoic acid
- 3,5-dihyroxybenzoic acid
- 5-Carboxyresorcinol
- a-resorcylic acid
- alpha-Resorcylic acid
- Benzoic acid, 3,5-dihydroxy-
Frequently asked questions
What is 3,5-Dihydroxybenzoic acid commonly used for?
It is primarily used in organic synthesis, as a precursor for pharmaceuticals, and in the production of UV absorbers and antioxidants.
What is the chemical formula and molecular weight of 3,5-Dihydroxybenzoic acid?
The chemical formula is (HO)₂C₆H₃CO₂H, and the molecular weight is 154.12 g/mol.
How should 3,5-Dihydroxybenzoic acid be stored?
Store it at ambient temperature in a cool, dry place, away from incompatible substances.
What grades of purity are available for this product?
Molekula supplies 3,5-Dihydroxybenzoic acid in high-purity grades, typically ≥98% purity.
Can Molekula supply this product in bulk quantities?
Yes, we offer bulk packaging options for 3,5-Dihydroxybenzoic acid upon request.
What documentation comes with an order of this product?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a product specification sheet.
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.