Molekula
2,3-Butanediol
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
2,3-Butanediol is a colorless, viscous liquid used as a chemical intermediate in the production of polymers, solvents, and pharmaceuticals. It is also employed in the synthesis of fine chemicals and as a fermentation product in biotechnology. Other applications include resin manufacture, dissolving dyes, serving as a blending agent, and crosslinking naphthalene-1,5-diisocyanate in certain hard-rubber products. CAS: 513-85-9, Molecular Formula: C4H10O2, Molecular Weight: 90.12 g/mol, Storage: Ambient, Signal Word: None. Molekula supplies 2,3-Butanediol 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 — £75.70 per pack ex VAT · £90.84 inc. VAT
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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 | Colourless liquid |
| Refractive Index | 1.434 - 1.440 |
| Specific Gravity | 1.001 - 1.005 |
| Assay | >99% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 85 °C |
| Transport Class | Not regulated |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Nearly colorless, crystalline solid or liquid |
| Odour | Odorless |
| Melting Point | 19 °C |
| Boiling Point | 182 °C at 760 mmHg |
| Water Solubility | Miscible with water |
| Solubility (other solvents) | Easily soluble in low molecular mass alcohols and ketones |
| Vapour Pressure | 0.243 mmHg at 25 °C |
| Refractive Index | 1.438 |
| pKa | pKa = 14.9 |
| log P (octanol/water) | -0.92 |
Source: PubChem CID 262 (HSDB, Human Metabolome Database (HMDB))
Identification
| Property | Value |
|---|---|
| SKU | 18486659 |
| CAS Number | 513-85-9 |
| IUPAC Name | butane-2,3-diol |
| EC Number | 208-173-6 |
| Molecular Formula | CH3CH(OH)CH(OH)CH3 |
| Molecular Weight | 90.12 |
| Exact Mass | 90.0681 |
| SMILES | CC(C(C)O)O |
| InChIKey | OWBTYPJTUOEWEK-UHFFFAOYSA-N |
| InChI | InChI=1S/C4H10O2/c1-3(5)4(2)6/h3-6H,1-2H3 |
| PubChem CID | 262 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 2905.39.9000 |
| Tariff Code | 2905399590 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P403 Store in a well-ventilated place
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
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
- 2,3-Butanediol, (R*,R*)-(.+/-.)-
- 2,3-butylene glycol
- 2,3-Dihydroxybutane
- Butane-2,3-diol
- Dimethylene glycol
- Dimethylethylene glycol
- DL-2,3-Butanediol
- Omega-butylene glycol
- Pseudobutylene glycol
- Sym-dimethylethylene glycol
Frequently asked questions
What is 2,3-Butanediol used for?
2,3-Butanediol is used as a chemical intermediate in the synthesis of pharmaceuticals, polymers, and solvents, and as a precursor in the production of 1,3-butadiene.
What is the chemical formula and molecular weight of 2,3-Butanediol?
The formula is CH3CH(OH)CH(OH)CH3 and the molecular weight is 90.12 g/mol.
How should 2,3-Butanediol be stored?
It should be stored at ambient temperature, protected from moisture and contamination.
What grade of 2,3-Butanediol does Molekula supply?
Molekula supplies 2,3-Butanediol in technical grade; custom grades available upon request.
Can Molekula supply 2,3-Butanediol in bulk?
Yes, Molekula can supply 2,3-Butanediol in bulk quantities; please contact sales for details.
What documentation comes with a purchase of 2,3-Butanediol?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation available upon request.
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.