Molekula
trans-2,3-Dibromo-2-buten-1,4-diol
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
trans-2,3-Dibromo-2-buten-1,4-diol is an organic dibromo diol compound used as a brominated building block in organic synthesis and as a reactive flame-retardant intermediate. It appears as a white to off-white crystalline solid with a CAS number of 3234-02-4, molecular formula C4H6Br2O2, and a molecular weight of 245.90 g/mol. Store at ambient temperatures, handling with care due to its hazardous nature (Signal word: Danger). Molekula supplies trans-2,3-Dibromo-2-buten-1,4-diol 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
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.
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100 g — £59.80 per pack ex VAT · £71.76 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Melting Point | 112 - 116 Deg C |
| Loss on Drying | <0.1% |
| Assay | >98.5% |
| Residue on Ignition | <0.02% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 22602629 |
| CAS Number | 3234-02-4 |
| IUPAC Name | (E)-2,3-dibromobut-2-ene-1,4-diol |
| EC Number | 244-313-2 |
| Molecular Formula | C4H6Br2O2 |
| Molecular Weight | 245.90 |
| Exact Mass | 245.8714 |
| SMILES | C(/C(=C(/CO)\Br)/Br)O |
| InChIKey | MELXIJRBKWTTJH-ONEGZZNKSA-N |
| InChI | InChI=1S/C4H6Br2O2/c5-3(1-7)4(6)2-8/h7-8H,1-2H2/b4-3+ |
| PubChem CID | 641240 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| Tariff Code | 2905590090 |
Safety & GHS
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Toxic
GHS06
-
Health Hazard
GHS07
Hazard statements
- H301 Toxic if swallowed
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
Precautionary statements
- P260 Do not breathe 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
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- 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, Finnish, 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
- (2E)-2,3-Dibromo-2-butene-1,4-diol
- (2E)-2,3-dibromobut-2-ene-1,4-diol
- (E)-2,3-Dibromo-2-butene-1,4-diol
- 2-Butene-1,4-diol, 2,3-dibromo-
- 2-butene-1,4-diol, 2,3-dibromo-, (2E)-
- 2-Butene-1,4-diol, 2,3-dibromo-, (E)-
- 2,3-Dibromo-2-butene-1,4-diol, (E)-
- 2,3-DIBROMO-2-BUTENE-1,4-DIOL, TRANS-
- trans-2,3-Dibromo-1,4-dihydroxy-2-butene
- trans-2,3-Dibromo-2-butene-1,4-diol
Frequently asked questions
What is trans-2,3-Dibromo-2-buten-1,4-diol commonly used for?
This compound is primarily used as a precursor in organic synthesis, including the preparation of pharmaceutical intermediates, agrochemicals, and specialty polymers.
What is the chemical formula and molecular weight of trans-2,3-Dibromo-2-buten-1,4-diol?
The chemical formula is **C₄H₆Br₂O₂**, and the molecular weight is **245.90 g/mol**.
How should trans-2,3-Dibromo-2-buten-1,4-diol be stored?
Store in a tightly sealed container at **ambient temperature**, away from incompatible substances and moisture.
What grades or purities of trans-2,3-Dibromo-2-buten-1,4-diol does Molekula supply?
Molekula supplies this compound in **technical and research-grade purities**, typically ≥95% purity unless otherwise specified.
Can Molekula supply trans-2,3-Dibromo-2-buten-1,4-diol in bulk quantities?
Yes, we can provide bulk quantities upon request, subject to availability and minimum order quantities (MOQs).
What documentation comes with an order of trans-2,3-Dibromo-2-buten-1,4-diol?
Each order includes a **Certificate of Analysis (CoA)**, Safety Data Sheet (SDS), and a product specification sheet.
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