Molekula
Methyl thiobutyrate
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
Methyl thiobutyrate is a sulfur-containing ester used in fragrance and flavor formulations for its fruity, sulfurous aroma. It is available in pure form with a molecular weight of 118.2 g/mol, CAS number 2432-51-1, and molecular formula C5H10OS. Stored at ambient temperatures, it carries a warning signal word because it is a flammable liquid and vapour (H226). Molekula supplies Methyl thiobutyrate 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
| Property | Value |
|---|---|
| Appearance | Clear, colourless liquid |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 34 °C |
| Transport Class | 3 |
| Packing Group | III |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Boiling Point | 142 to 143 °C at 757 mmHg |
Source: PubChem CID 62444 (Human Metabolome Database (HMDB))
Identification
| Property | Value |
|---|---|
| SKU | 90036583 |
| CAS Number | 2432-51-1 |
| IUPAC Name | S-methyl butanethioate |
| EC Number | 219-407-1 |
| Molecular Formula | C5H10OS |
| Molecular Weight | 118.2 |
| Exact Mass | 118.0452 |
| SMILES | CCCC(=O)SC |
| InChIKey | GRLJIIJNZJVMGP-UHFFFAOYSA-N |
| InChI | InChI=1S/C5H10OS/c1-3-4-5(6)7-2/h3-4H2,1-2H3 |
| PubChem CID | 62444 |
| UN Number | UN1993 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2930.90.9251 |
| Tariff Code | 2930909599 |
Safety & GHS
-
Flammable
GHS02
Hazard statements
- H226 Flammable liquid and vapour
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P240 Ground/bond container and receiving equipment
- P241 Use explosion-proof electrical/ventilating/lighting equipment
- P242 Use only non-sparking tools
- P243 Take precautionary measures against static discharge
- P280 Wear protective gloves/protective clothing/eye protection/face protection
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
- 1-(methylsulfanyl)butan-1-one
- BUTANETHIOIC ACID, S-METHYL ESTER
- Butyric acid, thio-, S-methyl ester
- FEMA No. 3310
- Methanethiol butyrate
- Methanethiol n-butyrate
- Methyl thiolbutyrate
- S-Methyl butanethioate
- s-Methyl thiobutanoate
- S-Methyl thiobutyrate
Frequently asked questions
What is methyl thiobutyrate used for?
Methyl thiobutyrate is primarily used as a flavoring agent in food and fragrance applications due to its fruity, sulfurous aroma.
What is the chemical formula and molecular weight of methyl thiobutyrate?
The chemical formula is C5H10OS and the molecular weight is 118.2 g/mol.
How should methyl thiobutyrate be stored?
It should be stored at ambient temperature, away from light and moisture, in a tightly closed container.
What grade of methyl thiobutyrate does Molekula supply?
Molekula supplies methyl thiobutyrate in technical grade, suitable for industrial and research applications.
Can Molekula supply methyl thiobutyrate in bulk?
Yes, Molekula can supply methyl thiobutyrate in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a purchase of methyl thiobutyrate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.