(S)-6-Chloromethyl-5,6-dihydro-pyran-2-one
(S)-6-Chloromethyl-5,6-dihydro-pyran-2-one (CAS: 135999-61-0) is a chiral heterocyclic compound with the molecular formula C6H7ClO2 and a molecular weight of 146.57 g/mol. This pyran derivative serves as a valuable building block in asymmetric synthesis and general chemical synthesis. Its specific stereochemistry makes it particularly useful for constructing complex chiral molecules. Tech Serve Solutions supplies this compound for research and development purposes.
- Synonyms
- C6H7ClO2

Chiral Building Block
Utilised in organic synthesis for the introduction of specific chiral centres within target molecules. Its defined stereochemistry is critical for applications requiring enantiomeric purity.
Heterocyclic Synthesis
Serves as a precursor or intermediate in the synthesis of various pyran-based heterocyclic compounds. These structures are common motifs in pharmaceuticals and natural products.
Asymmetric Synthesis
Plays a key role in stereoselective reactions, enabling the creation of enantiomerically enriched compounds. Essential for the development of chiral drugs and advanced materials.
| Molecular weight | 146.57 |
|---|---|
| Empirical formula | C6H7ClO2 |
| Assay | ≥98.0% |
| Optical activity | [α]/D −162.0±2.0, c = 0.5 in chloroform |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
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 (S)-6-Chloromethyl-5,6-dihydro-pyran-2-one used for?
+
(S)-6-Chloromethyl-5,6-dihydro-pyran-2-one is primarily used as a chiral building block and intermediate in asymmetric synthesis and general chemical synthesis.
What is the CAS number and chemical formula for (S)-6-Chloromethyl-5,6-dihydro-pyran-2-one?
+
The CAS number is 135999-61-0 and the empirical formula is C6H7ClO2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies (S)-6-Chloromethyl-5,6-dihydro-pyran-2-one with an assay of ≥98.0%. This is a technical/research grade material and TSS does not represent it as USP, BP, or EP grade.
How should (S)-6-Chloromethyl-5,6-dihydro-pyran-2-one be handled safely?
+
Based on GHS classifications, this compound is harmful if swallowed (H302). Appropriate personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Handle in a well-ventilated area.
How is (S)-6-Chloromethyl-5,6-dihydro-pyran-2-one packed, shipped, and exported?
+
As a global supplier and exporter of fine chemicals, Tech Serve Solutions ensures secure and compliant packaging for international shipment. Specific details for this product will be confirmed upon order.
How can I request a sample or a quote for (S)-6-Chloromethyl-5,6-dihydro-pyran-2-one?
+
To request a sample or a quote, please contact our sales team through the website or by phone, providing the product name and CAS number (135999-61-0).
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis