3,4-Dihydro-2H-pyran-2-methanol
3,4-Dihydro-2H-pyran-2-methanol (CAS: 3749-36-8) is a heterocyclic organic compound with the molecular formula C6H10O2. This versatile molecule serves as a valuable building block in organic synthesis, particularly within the fields of chemical biology and heterocyclic chemistry. Its bifunctional nature allows it to participate in a variety of reactions, making it a useful linker or intermediate for more complex molecular architectures.
- IUPAC
- 2-Hydroxymethyl-3,4-dihydro-2H-pyran,3,4-Dihydro-2H-pyran-2-ylmethanol
- Synonyms
- 2-Hydroxymethyl-3,4-dihydro-2H-pyran3,4-Dihydro-2H-pyran-2-ylmethanol

Organic Synthesis Intermediate
3,4-Dihydro-2H-pyran-2-methanol is employed as a key intermediate in the synthesis of diverse organic compounds. Its structural features facilitate its incorporation into various reaction pathways.
Heterocyclic Chemistry
As a pyran derivative, this compound is utilized in the construction of complex heterocyclic systems. It serves as a valuable starting material for exploring novel pyran-based structures.
Chemical Biology Research
The molecule can be employed in chemical biology studies, potentially as a precursor for designing probes or modified molecules for biological investigations.
Building Block for Linkers
Its bifunctional nature makes it suitable for use as a linker in the synthesis of larger molecular constructs or for crosslinking applications in materials science.
| Molecular weight | 114.14 |
|---|---|
| Empirical formula | C6H10O2 |
| Assay | ≥98.5% (GC) |
| Boiling point | 92-93 °C/25 mmHg(lit.) |
| Density | 1.101 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.478(lit.)n20/D 1.479 |
| Storage temperature | 2-8°C |

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 | 89 °C / 192.2 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 3,4-Dihydro-2H-pyran-2-methanol used for?
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3,4-Dihydro-2H-pyran-2-methanol is primarily used as a building block and intermediate in organic synthesis, chemical biology, and heterocyclic chemistry.
What is the CAS number and chemical formula for 3,4-Dihydro-2H-pyran-2-methanol?
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The CAS number is 3749-36-8, and the molecular formula is C6H10O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,4-Dihydro-2H-pyran-2-methanol with an assay of ≥98.5% (GC). This is a research/technical grade, and TSS does not represent it as USP, BP, or EP.
What are the main safety hazards associated with 3,4-Dihydro-2H-pyran-2-methanol?
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This compound is classified with a Warning signal word, with 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, is recommended.
How is 3,4-Dihydro-2H-pyran-2-methanol shipped?
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Shipments are handled according to regulations, including NA 1993 / PGIII. Storage is recommended at 2-8°C.
How can I request a sample or quote for 3,4-Dihydro-2H-pyran-2-methanol?
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To request a sample or a quote, please contact the TSS sales team through our website or by phone.
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