Methyl (R)-3-aminobutyrate p-toluenesulfonate salt
Methyl (R)-3-aminobutyrate p-toluenesulfonate salt (CAS 409081-18-1) is a chiral organic building block with the molecular formula C5H11NO2 · C7H8O3S. This compound is primarily utilised in asymmetric synthesis and general chemical synthesis. Its specific stereochemistry makes it valuable for creating enantiomerically pure compounds, particularly in pharmaceutical and fine chemical research and development. Tech Serve Solutions supplies this chemical with a high level of purity for demanding synthetic applications.

Chiral Synthesis
Serves as a crucial chiral building block in asymmetric synthesis. Its defined stereochemistry is leveraged to construct enantiomerically pure molecules, essential for pharmaceuticals and complex organic compounds.
Pharmaceutical Intermediates
Used in the synthesis pathways for developing new active pharmaceutical ingredients (APIs). Its structure allows for the precise introduction of chirality during drug discovery and development.
Organic Synthesis Reagent
Acts as a versatile reagent in general organic synthesis. It is employed in various chemical transformations where a chiral amine derivative is required for specific molecular architectures.
| Molecular weight | 289.35 |
|---|---|
| Empirical formula | C5H11NO2 · C7H8O3S |
| Assay | ≥97.5% (GC) |
| Grade | produced by BASF |
| Optical purity | optical purity: ≥97.5% |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Flash point | >100 °C / >212 °F |
|---|---|
| Transport (UN / ADR) | UN 3261 8 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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 Methyl (R)-3-aminobutyrate p-toluenesulfonate salt used for?
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Methyl (R)-3-aminobutyrate p-toluenesulfonate salt is primarily used as a chiral building block in asymmetric synthesis and for the development of pharmaceutical intermediates and other complex organic molecules.
What are the CAS number and formula for this compound?
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The CAS number is 409081-18-1 and the molecular formula is C5H11NO2 · C7H8O3S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical produced by BASF with an assay of ≥97.5% (GC) and optical purity of ≥97.5%. It is not represented as USP, BP, or EP grade.
How should Methyl (R)-3-aminobutyrate p-toluenesulfonate salt be handled?
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This compound is classified as Danger, causing severe skin burns and eye damage (H314). Always use appropriate personal protective equipment, including gloves, eye protection, and protective clothing (P280). In case of contact, rinse cautiously with water for several minutes and seek immediate medical attention (P305 + P351 + P338-P310).
How is this chemical shipped and exported?
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This chemical is shipped under UN 3261, Class 8, Packing Group III regulations. Tech Serve Solutions is experienced in global export, adhering to all relevant shipping and customs requirements.
How can I request a sample or quote?
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To request a sample or obtain a quotation for Methyl (R)-3-aminobutyrate p-toluenesulfonate salt, please contact our sales team through the website or by phone.
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