Molekula
tert-Butylhydroquinone
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
tert-Butylhydroquinone (TBHQ) is a synthetic antioxidant widely used in food, cosmetics, and industrial applications to prevent oxidation and extend shelf life. It is a white to off-white crystalline powder with a faint phenolic odor. This chemical has a CAS number of 1948-33-0, a molecular formula of (CH3)3CC6H3(OH)2, and a molecular weight of 166.22 g/mol. It is stable under ambient storage conditions and carries a signal word of "Warning" for safety classification.
Molekula supplies tert-Butylhydroquinone at 99% min purity (C10H14O2) in 100 g and 500 g packs, from £38.40 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 5 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
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 — £32.00 per pack ex VAT · £38.40 inc. VAT
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500 g — £93.50 per pack ex VAT · £112.20 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 | White to off-white crystalline powder |
| Melting Point | 126.5°C to 128.5°C |
| Ash | 0.2%max |
| Loss on Drying | 0.5% max |
| Storage Temperature | +20 ° C |
| Heavy Metals (Pb) | 0.001% max |
| Toluene | 0.0025% max |
| Arsenic (As) | 0.0003% max |
| Hydroquinone | 0.5%max |
| tert-Butylhydroquinone | 99%min. |
| Assay (C10H14O2) | 99% min |
| T-butyl-Benzoquinone | 0.2% max |
| 2,5-Di-t-butyl-hydroquinone | 0.2% max |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White to light tan crystalline powder or a fine beige powder |
| Odour | Very slight odor |
| Melting Point | 126.5-128.5 °C |
| Boiling Point | 295 °C |
| Solubility (other solvents) | Soluble in acetone, alcohol, ethyl acetate |
| pKa | pKa = 10.7 |
Source: PubChem CID 16043 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 13260094 |
| CAS Number | 1948-33-0 |
| IUPAC Name | 2-tert-butylbenzene-1,4-diol |
| EC Number | 217-752-2 |
| Molecular Formula | (CH3)3CC6H3(OH)2 |
| Molecular Weight | 166.22 |
| Exact Mass | 166.0994 |
| SMILES | CC(C)(C)C1=C(C=CC(=C1)O)O |
| InChIKey | BGNXCDMCOKJUMV-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H14O2/c1-10(2,3)8-6-7(11)4-5-9(8)12/h4-6,11-12H,1-3H3 |
| PubChem CID | 16043 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29072925 |
| Tariff Code | 2907290090 |
Safety & GHS
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H302+312 Harmful if swallowed or in contact with skin
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- 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
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P333+313 IF skin irritation or a rash occurs: 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 2-t-Butylhydroquinone
- 2-tert-Butyl-1,4-benzenediol
- 2-tert-Butylhydroquinone
- Mono-tert-butylhydroquinone
- Mono-tertiarybutylhydroquinone
- MTBHQ
- Sustane
- T-BUTYLHYDROQUINONE
- TBHQ
- Tenox TBHQ
Frequently asked questions
What is tert-Butylhydroquinone (TBHQ) commonly used for?
TBHQ is primarily used as an antioxidant and preservative in foods, cosmetics, and industrial applications like lubricants and fuels to prevent oxidation and spoilage.
What is the chemical formula and molecular weight of TBHQ?
The chemical formula is (CH3)3CC6H3(OH)2, and the molecular weight is 166.22 g/mol.
How should tert-Butylhydroquinone be stored?
Store TBHQ at ambient temperature in a cool, dry place, away from direct sunlight and incompatible substances.
What grades of TBHQ does Molekula supply?
Molekula supplies TBHQ with a minimum assay of 99% and defined impurity limits, including hydroquinone at 0.5% max, t-butyl-benzoquinone at 0.2% max, 2,5-di-t-butylhydroquinone at 0.2% max, heavy metals (Pb) at 0.001% max and arsenic at 0.0003% max.
Can Molekula supply tert-Butylhydroquinone in bulk quantities?
Yes, Molekula can supply TBHQ in bulk quantities (drums, totes, or custom packaging) for large-scale industrial or commercial use.
What documentation comes with an order of TBHQ?
Each order includes a Certificate of Analysis (CoA), Safety Data Sheet (SDS), and batch-specific documentation for traceability and compliance.
Where can I buy tert-Butylhydroquinone?
Directly from Molekula, which lists tert-Butylhydroquinone in 100 g and 500 g packs from £38.40 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Is tert-Butylhydroquinone dangerous goods for shipping?
Yes. tert-Butylhydroquinone ships as dangerous goods: UN3077, class 9, packing group III.
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.