L-Alanyl-L-1-aminoethylphosphonic acid
L-Alanyl-L-1-aminoethylphosphonic acid (CAS 60668-24-8) is an antibacterial agent and a dipeptide mimetic. It functions by interfering with bacterial cell wall synthesis, making it a valuable selection agent for isolating specific bacteria, notably Salmonella. Supplied by TSS, this chemical is primarily used in research and biochemical applications.
- IUPAC
- (S)-Alanyl-(R)-1-aminoethylphosphonic acid,Alafosfalin,Alaphosphin
- Synonyms
- (S)-Alanyl-(R)-1-aminoethylphosphonic acidAlafosfalinAlaphosphin

Bacterial Isolation
Utilised as a selection agent for the isolation of Salmonella species from various samples.
Antibacterial Research
Acts as a dipeptide mimetic antibacterial agent, inhibiting bacterial cell wall synthesis for research purposes.
| Molecular weight | 196.14 |
|---|---|
| Empirical formula | C5H13N2O4P |
| Assay | ≥98.0% (T) |
| Optical activity | [α]20/D −45±2°, c = 1% in H2O |
| Storage temperature | 2-8°C |
| Application | Alaphosphin is used as a selection agent for isolation of Salmonella and as a dipeptide mimetic antibacterial agent. |

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 L-Alanyl-L-1-aminoethylphosphonic acid used for?
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This compound is primarily used as a selection agent for isolating Salmonella and as a dipeptide mimetic antibacterial agent in research settings.
What are the CAS number and formula for L-Alanyl-L-1-aminoethylphosphonic acid?
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The CAS number is 60668-24-8, and its empirical formula is C5H13N2O4P.
What is the purity or grade of this chemical?
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The chemical is supplied with an assay of ≥98.0% (T) and is suitable for research and biochemical applications. It is not represented as USP, BP, EP, or other pharmacopoeia grades.
What are the primary hazards associated with L-Alanyl-L-1-aminoethylphosphonic acid?
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Based on GHS classification, it is labelled as a Warning with hazard statement H302, indicating it is harmful if swallowed. Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be used.
How is L-Alanyl-L-1-aminoethylphosphonic acid shipped and stored?
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This product requires storage at 2-8°C. TSS handles the export of chemicals, adhering to all relevant shipping regulations.
How can I request a quote for L-Alanyl-L-1-aminoethylphosphonic acid?
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To request a quote, please contact our sales team via the website or by calling our customer service number, referencing CAS 60668-24-8.
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