Molekula
3,5-Di-tert-butyl-4-hydroxybenzoic 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-Di-tert-butyl-4-hydroxybenzoic acid is a hindered phenolic antioxidant widely used in plastics, rubber, and fuel additives to prevent oxidative degradation. It stabilizes polymers against heat, light, and oxygen, extending product lifespan. This white crystalline powder has a CAS number of 1421-49-4, molecular formula [(CH3)3C]2C6H2(OH)CO2H, and a molecular weight of 250.33 g/mol. Store at ambient conditions; marked with a warning signal word for moderate hazard. Molekula supplies 3,5-Di-tert-butyl-4-hydroxybenzoic 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.
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
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 15528282 |
| CAS Number | 1421-49-4 |
| IUPAC Name | 3,5-ditert-butyl-4-hydroxybenzoic acid |
| EC Number | 215-823-2 |
| Molecular Formula | [(CH3)3C]2C6H2(OH)CO2H |
| Molecular Weight | 250.33 |
| Exact Mass | 250.1569 |
| SMILES | CC(C)(C)C1=CC(=CC(=C1O)C(C)(C)C)C(=O)O |
| InChIKey | YEXOWHQZWLCHHD-UHFFFAOYSA-N |
| InChI | InChI=1S/C15H22O3/c1-14(2,3)10-7-9(13(17)18)8-11(12(10)16)15(4,5)6/h7-8,16H,1-6H3,(H,17,18) |
| PubChem CID | 15007 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2918.29.6500 |
| Tariff Code | 2918290090 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- 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
- 3,5-Bis-tert-butyl-4-hydroxybenzoic acid
- 3,5-bis(1,1-dimethylethyl)-4-hydroxybenzoic acid
- 3,5-DI-T-BUTYL-4-HYDROXYBENZOIC ACID
- 4-Carboxy-2,6-di-tert-butylphenol
- Benzoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-
- Benzoic acid, 3,5-di-tert-butyl-4-hydroxy-
- BHT-COOH
- F 2 (ANTIOXIDANT)
- Oprea1_044717
Frequently asked questions
What is 3,5-Di-tert-butyl-4-hydroxybenzoic acid commonly used for?
It is primarily used as a **radical scavenger** and **antioxidant** in polymers, fuels, and organic synthesis to prevent oxidative degradation.
What is the molecular formula and molecular weight of this compound?
The molecular formula is **C15H22O3**, and the molecular weight is **250.33 g/mol**.
How should this chemical be stored?
Store in a **cool, dry place** at **ambient temperature**, away from direct sunlight and incompatible materials.
What purity grades are available for this product?
Molekula supplies this compound in **technical grade (97%+ purity)** and **analytical/reagent grade (99%+ purity)**.
Can Molekula supply this in bulk quantities?
Yes, we offer **bulk packaging options** (e.g., 1 kg, 5 kg, 25 kg) for large-scale applications—please contact us for pricing.
What documentation is provided with each order?
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.