2-Ethylbutyric acid
2-Ethylbutyric acid (CAS: 88-09-5), with the linear formula (C2H5)2CHCO2H, is a carboxylic acid with a molecular weight of 116.16 g/mol. This organic compound serves as a valuable building block in chemical synthesis. It is frequently employed as an internal standard for the quantification of volatile fatty acids (VFAs) in wastewater analysis and in the determination of free and total fatty acids in milk products via HPLC.
- IUPAC
- Diethylacetic acid
- Synonyms
- Diethylacetic acid
Internal Standard for Volatile Fatty Acid Analysis
2-Ethylbutyric acid is utilised as an internal standard in the accurate determination of volatile fatty acids (VFAs) present in wastewater samples from constructed wetlands.
Fatty Acid Determination in Dairy Products
This compound is applied in the analysis of both free and total fatty acids in milk and various dairy products. Its use in conjunction with HPLC and direct derivatisation enables precise quantification.
Organic Synthesis Building Block
As a member of the carboxylic acid family, 2-Ethylbutyric acid functions as a versatile building block in various organic synthesis pathways.
| Molecular weight | 116.16 |
|---|---|
| Linear formula | (C2H5)2CHCO2H |
| Assay | 99% |
| Boiling point | 99-101 °C/18 mmHg(lit.) |
| Density | 0.92 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.413(lit.) |
| Vapour pressure | 0.08 mmHg (20 °C) |
| Melting point | −16-−13 °C(lit.) |
| Application | 2-Ethylbutyric acid is used as the internal standard for determining volatile fatty acids (VFAs) in wastewater from the constructed wetlands1. It is used in the determination of both free and fatty acids in milk and milk products by HPLC method with direct derivatisation2. |
Hazard statements
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 87 °C / 188.6 °F |
| Transport (UN / ADR) | UN 2810 6.1 / PGIII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 21-36/37/38 |
| Safety statements (S) | 26-36 |
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-Ethylbutyric acid used for?
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2-Ethylbutyric acid is used as an internal standard for determining volatile fatty acids (VFAs) in wastewater and for the analysis of free and total fatty acids in milk and dairy products by HPLC. It also serves as a building block in chemical synthesis.
What is the CAS number and formula for 2-Ethylbutyric acid?
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The CAS number for 2-Ethylbutyric acid is 88-09-5, and its linear formula is (C2H5)2CHCO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Ethylbutyric acid with a minimum assay of 99%. We do not represent this product as USP, BP, or EP grade.
How should 2-Ethylbutyric acid be handled safely?
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2-Ethylbutyric acid is harmful if swallowed, causes skin irritation, serious eye irritation, and may cause respiratory irritation (H312-H315-H319-H335). Always use appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, and handle in a well-ventilated area.
How is 2-Ethylbutyric acid packed and shipped?
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2-Ethylbutyric acid is classified under UN 2810, Class 6.1, Packing Group III. It is packaged and shipped in compliance with relevant transport regulations for hazardous materials.
How can I request a quote or sample?
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To request a quote or a sample of 2-Ethylbutyric acid, please contact our sales team through the website or by phone.
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