4-Chloro-D-phenylalanine
4-Chloro-D-phenylalanine (CAS: 14091-08-8) is a modified amino acid with the molecular formula C9H10ClNO2 and a molecular weight of 199.63 g/mol. This compound serves as a valuable building block in organic synthesis and biochemical research. It is primarily utilised in the development of novel compounds and as a tool for investigating biochemical pathways, offering specific reactivity due to its chlorinated phenylalanine structure.
- IUPAC
- D-PCP,D-PCPA
- Synonyms
- D-PCPD-PCPA

Organic Synthesis
Utilised as a chiral building block in the synthesis of complex organic molecules. Its structure allows for specific derivatisation and incorporation into larger target compounds.
Biochemical Research
Employed as a research chemical to probe enzyme mechanisms and metabolic pathways. It can act as an inhibitor or substrate analogue in biochemical studies.
Peptide Chemistry
Incorporated into peptides to modify their properties, such as stability, binding affinity, or conformational characteristics. This aids in the design of novel peptidomimetics.
| Molecular weight | 199.63 |
|---|---|
| Empirical formula | C9H10ClNO2 |
| Storage temperature | −20°C |

Hazard statements
- H301Toxic if swallowed
- H317May cause an allergic skin reaction
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25-43 |
| Safety statements (S) | 36/37-45 |
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 4-Chloro-D-phenylalanine used for?
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4-Chloro-D-phenylalanine is used in organic synthesis as a chiral building block and in biochemical research to study enzyme mechanisms and metabolic pathways.
What is the CAS number and formula for 4-Chloro-D-phenylalanine?
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The CAS number is 14091-08-8 and the empirical formula is C9H10ClNO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Chloro-D-phenylalanine with a purity of 98%. TSS does not represent this product as USP, BP, or EP grade.
How should 4-Chloro-D-phenylalanine be handled?
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Handle with extreme care. It is toxic if swallowed and may cause an allergic skin reaction. Wear appropriate personal protective equipment, including eyeshields, face shields, gloves, and a P2 respirator, and ensure adequate ventilation.
Is 4-Chloro-D-phenylalanine a controlled substance?
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The provided data does not indicate that 4-Chloro-D-phenylalanine is a scheduled or controlled substance.
How is 4-Chloro-D-phenylalanine packed and shipped?
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This compound is shipped as UN 2811, Class 6.1, Packing Group III, adhering to strict international regulations for hazardous materials.
How can I request a sample or quote?
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Please contact our sales team via the website or by phone to request a sample or a formal quotation for 4-Chloro-D-phenylalanine.
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