L-(−)-α-Amino-ε-caprolactam hydrochloride
L-(−)-α-Amino-ε-caprolactam hydrochloride (CAS: 26081-07-2), with the molecular formula C6H12N2O · HCl and a molecular weight of 164.63 g/mol, is a chiral building block. It is primarily utilised in asymmetric synthesis and chemical synthesis. This compound serves as a valuable intermediate for creating complex chiral molecules, making it an important reagent in organic chemistry research and development.
- IUPAC
- (S)-3-Amino-hexahydro-2-azepinone hydrochloride,L-Lysine lactam hydrochloride
- Synonyms
- (S)-3-Amino-hexahydro-2-azepinone hydrochlorideL-Lysine lactam hydrochloride

Chiral Building Block
This compound acts as a fundamental chiral synthon for the construction of enantiomerically pure molecules in organic synthesis. Its defined stereochemistry allows for precise control in the development of complex chiral architectures.
Asymmetric Synthesis
L-(−)-α-Amino-ε-caprolactam hydrochloride is employed as a chiral auxiliary or precursor in asymmetric synthesis. It enables the stereoselective formation of new chiral centres, which is critical in the production of pharmaceuticals and fine chemicals.
Chemical Synthesis Intermediate
Its unique structure makes it a versatile intermediate in various chemical synthesis pathways. It can be readily transformed into other functionalised molecules, facilitating the development of novel chemical entities.
| Molecular weight | 164.63 |
|---|---|
| Empirical formula | C6H12N2O · HCl |
| Assay | ≥97.0% (AT) |
| Optical activity | [α]20/D −27±2°, c = 1% in H2O |
| Optical purity | enantiomeric ratio: ≥99:1 (HPLC) |
| Storage temperature | 2-8°C |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 L-(−)-α-Amino-ε-caprolactam hydrochloride used for?
+
L-(−)-α-Amino-ε-caprolactam hydrochloride is primarily used as a chiral building block in asymmetric synthesis and as a versatile intermediate in chemical synthesis.
What is the CAS number and molecular formula for L-(−)-α-Amino-ε-caprolactam hydrochloride?
+
The CAS number is 26081-07-2, and the molecular formula is C6H12N2O · HCl.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies L-(−)-α-Amino-ε-caprolactam hydrochloride with an assay of ≥97.0% (AT). This product is intended for research and chemical synthesis purposes and is not supplied as USP, BP, EP, or any other pharmacopoeia grade.
How should L-(−)-α-Amino-ε-caprolactam hydrochloride be handled and stored?
+
This compound requires careful handling. Protective equipment including eyeshields and gloves should be worn. It should be stored at refrigeration temperatures of 2-8°C. Refer to the Safety Data Sheet for comprehensive handling information.
Is L-(−)-α-Amino-ε-caprolactam hydrochloride a controlled substance?
+
The provided data does not indicate that L-(−)-α-Amino-ε-caprolactam hydrochloride (CAS: 26081-07-2) is a controlled substance.
How is L-(−)-α-Amino-ε-caprolactam hydrochloride shipped?
+
Tech Serve Solutions is a global supplier and exporter of fine chemicals, pharmaceutical intermediates, and laboratory reagents. Products are packed and shipped according to international regulations for chemical transport.
How can I request a sample or quote for L-(−)-α-Amino-ε-caprolactam hydrochloride?
+
To request a sample or a quote for L-(−)-α-Amino-ε-caprolactam hydrochloride, please contact our sales department through the TSS website or by phone.
▶ 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