(−)-Menthyloxyacetic acid
(−)-Menthyloxyacetic acid (CAS: 40248-63-3), with the molecular formula C12H22O3 and a molecular weight of 214.30 g/mol, is a chiral carboxylic acid derivative. Its optically active nature makes it valuable in asymmetric synthesis and as a building block for complex organic molecules. Available from Tech Serve Solutions, this compound is primarily used in chemical research and development.
- IUPAC
- (−)-Menthyl carboxymethyl ether

Chiral Building Block
As an optically active compound, (–)-Menthyloxyacetic acid serves as a key chiral building block in the synthesis of enantiomerically pure compounds. Its defined stereochemistry is crucial for constructing complex molecules with specific spatial arrangements.
Asymmetric Synthesis
This chemical is utilized in asymmetric synthesis methodologies. It can act as a chiral auxiliary or precursor, enabling the stereoselective formation of new chiral centers in organic reactions.
Organic Synthesis Reagent
It is employed as a reagent in general organic synthesis for the preparation of various derivatives. Its carboxylic acid functionality allows for diverse chemical transformations.
| Molecular weight | 214.30 |
|---|---|
| Empirical formula | C12H22O3 |
| Assay | ≥98.0% (sum of enantiomers, GC) |
| Boiling point | 163-164 °C/10 mmHg(lit.) |
| Density | 1.01 g/mL at 20 °C(lit.) |
| Refractive index | n20/D 1.4672(lit.) |
| Optical activity | [α]20/D −93±3°, c = 10% in ethanol |
| Melting point | 52-55 °C(lit.) |
| Optical purity | enantiomeric ratio: ≥98.25:1.75 (GC) |

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 | 113 °C / 235.4 °F |
| 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 (–)-Menthyloxyacetic acid used for?
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(–)-Menthyloxyacetic acid is primarily used as a chiral building block and reagent in asymmetric synthesis and general organic synthesis for research and development purposes.
What is the CAS number and chemical formula for (–)-Menthyloxyacetic acid?
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The CAS number for (–)-Menthyloxyacetic acid is 40248-63-3, and its chemical formula is C12H22O3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (–)-Menthyloxyacetic acid with an assay of ≥98.0% (sum of enantiomers, GC). We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should (–)-Menthyloxyacetic acid be handled safely?
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Handle (–)-Menthyloxyacetic acid with appropriate personal protective equipment, including eyeshields and gloves. Ensure adequate ventilation and avoid breathing dust or vapours. Refer to the Safety Data Sheet for full handling and hazard information, as it is classified with hazards H315, H319, and H335.
How is (–)-Menthyloxyacetic acid packed, shipped, and exported?
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(–)-Menthyloxyacetic acid is carefully packed to ensure safe transport and is available for global export by Tech Serve Solutions.
How can I request a sample or quote for (–)-Menthyloxyacetic acid?
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To request a sample or a quote for (–)-Menthyloxyacetic acid, please contact our sales department through the TSS website or by phone.
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