2,4-Pentadienoic acid
2,4-Pentadienoic acid (CAS 626-99-3), with the linear formula CH <sub>2</sub>=CHCH=CHCOOH and a molecular weight of 98.10 g/mol, is a valuable organic building block. This carboxylic acid finds application in specialised chemical synthesis, including the preparation of chiral propargyl esters and the formation of 1-acylamino-1,3-dienes via a modified Curtius procedure. It is supplied as a technical grade material with a purity of ≥97.0% (T).
- IUPAC
- 1,3-Butadiene-1-carboxylic acid
- Synonyms
- CH2=CHCH=CHCOOH1,3-Butadiene-1-carboxylic acid
Synthesis of Chiral Propargyl Esters
2,4-Pentadienoic acid serves as a precursor in the synthesis of chiral propargyl esters, contributing to the development of complex organic molecules with specific stereochemistry.
Preparation of 1-Acylamino-1,3-dienes
This compound is utilised in a modified Curtius procedure for the preparation of <i>trans</i> 1-acylamino-1,3-dienes, a class of compounds important in organic synthesis.
Organic Building Block
As a C5 carboxylic acid, 2,4-Pentadienoic acid functions as a versatile building block in various organic synthesis pathways, enabling the construction of larger molecular frameworks.
| Molecular weight | 98.10 |
|---|---|
| Linear formula | CH2=CHCH=CHCOOH |
| Assay | ≥97.0% (T) |
| Solubility | 1 M NaOH: soluble0.5 g/10 mL, clear, brown |
| Storage temperature | −20°C |
| Contains / stabiliser | hydroquinone as stabilizer |
| Application | 2,4-Pentadienoic acid was used in preparation of chiral propargylester1. It was also used in the preparation of trans 1-N-acylamino-1,3-dienes via modified Curtius procedure2. |
| Melting point | 69-72 °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 2,4-Pentadienoic acid used for?
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2,4-Pentadienoic acid is used in organic synthesis, specifically for preparing chiral propargyl esters and <i>trans</i> 1-acylamino-1,3-dienes. It also serves as a general organic building block.
What are the CAS number and formula for 2,4-Pentadienoic acid?
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The CAS number for 2,4-Pentadienoic acid is 626-99-3. Its linear formula is CH <sub>2</sub>=CHCH=CHCOOH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,4-Pentadienoic acid with a minimum assay of ≥97.0% (T). This is a technical/research grade material, and TSS does not represent it as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety and handling precautions for 2,4-Pentadienoic acid?
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2,4-Pentadienoic acid requires careful handling. Appropriate personal protective equipment, including eyeshields and gloves, should be worn. A type N95 (US) or type P1 (EN143) respirator filter is recommended. It is classified under WGK Germany 3, indicating a high hazard potential.
How is 2,4-Pentadienoic acid packaged and exported?
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2,4-Pentadienoic acid is stored at −20°C and contains hydroquinone as a stabiliser. TSS ensures appropriate packaging for safe domestic and international export, adhering to all relevant regulations.
How can I request a quote or sample for 2,4-Pentadienoic acid?
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To request a quote or a sample of 2,4-Pentadienoic acid, please contact our sales department via the website or by phone. Our team will be pleased to assist you with your chemical requirements.
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