3-(Methylthio)-1-propanol
3-(Methylthio)-1-propanol (CAS 505-10-2), a sulfur-containing organic compound with the formula CH3S(CH2)3OH and a molecular weight of 106.19 g/mol, serves as a valuable building block in chemical synthesis. Its structure, featuring both a thioether and a primary alcohol functional group, allows for diverse reactivity. This compound is primarily utilised in organic synthesis and as a reagent in various chemical research and development applications.
- IUPAC
- Methionol
- Synonyms
- Methionol

Organic Synthesis Intermediate
Utilised as a versatile building block in the synthesis of more complex organic molecules. Its bifunctional nature allows for selective reactions at either the alcohol or thioether moiety.
Reagent in Chemical Research
Employed in laboratory settings for research and development purposes, particularly in studies involving sulfur-containing compounds or functional group transformations.
Pharmaceutical Intermediate
May be used in the development pathways for certain pharmaceutical compounds, leveraging its specific structural features for targeted synthesis.
| Molecular weight | 106.19 |
|---|---|
| Linear formula | CH3S(CH2)3OH |
| Assay | 98% |
| Boiling point | 89-90 °C/13 mmHg(lit.) |
| Density | 1.03 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.49(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 91 °C / 195.8 °F |
| Transport (UN / ADR) | UN 3334 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36/37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 3-(Methylthio)-1-propanol primarily used for?
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3-(Methylthio)-1-propanol is primarily used as a building block in organic synthesis and as a reagent in chemical research and development applications.
What is the CAS number and chemical formula for 3-(Methylthio)-1-propanol?
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The CAS number is 505-10-2 and the chemical formula is CH3S(CH2)3OH.
What grade and purity does Tech Serve Solutions supply for 3-(Methylthio)-1-propanol?
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Tech Serve Solutions supplies 3-(Methylthio)-1-propanol with an assay of 98%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeial grades.
What are the main safety hazards associated with 3-(Methylthio)-1-propanol?
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3-(Methylthio)-1-propanol is classified with Warning signal word and carries hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Appropriate personal protective equipment, including eyeshields and gloves, should be used, and handling should occur in a well-ventilated area or with respiratory protection.
How is 3-(Methylthio)-1-propanol packed, shipped, and exported?
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3-(Methylthio)-1-propanol is carefully packaged to ensure safe transit and is available for export globally by Tech Serve Solutions, adhering to all necessary regulations.
How can I request a sample or quote for 3-(Methylthio)-1-propanol?
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To request a sample or a quote for 3-(Methylthio)-1-propanol, please contact the Tech Serve Solutions sales team through our website or by phone.
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