4-Methylvaleric acid
4-Methylvaleric acid (CAS 646-07-1), a carboxylic acid with the molecular formula C6H12O2 and a molecular weight of 116.16 g/mol, is a valuable organic building block. It is primarily utilised in chemical synthesis. Available at 99% purity, this compound serves as a key intermediate for various research and development applications.
- IUPAC
- 4-Methylpentanoic acid,Isocaproic acid
- Synonyms
- Isocaproic acid4-Methylpentanoic acid

Asymmetric Synthesis
4-Methylvaleric acid has been employed in the asymmetric synthesis of complex organic molecules, such as chiral auxiliaries. Its structure lends itself to stereoselective reactions in organic chemistry research.
Organic Building Block
As a versatile C6 carboxylic acid, it functions as a fundamental building block in organic synthesis. It can be incorporated into larger molecules to introduce specific structural features or functionalities.
Intermediate in Chemical Synthesis
The compound serves as an intermediate in the synthesis of various chemical entities. Its reactivity as a carboxylic acid allows for common transformations like esterification or amidation.
| Molecular weight | 116.16 |
|---|---|
| Linear formula | (CH3)2CHCH2CH2CO2H |
| Assay | 99% |
| Boiling point | 199-201 °C(lit.) |
| Density | 0.923 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.414(lit.) |
| Application | 4-Methylvaleric acid has been used in asymmetric synthesis of (4S)-4-isopropyl-3-[(2′S)-2′,4′-dimethyl-valeryl)]-2-oxazolidinone1. |

Hazard statements
- H311Toxic in contact with skin
- H315Causes skin irritation
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P312Call a POISON CENTER if you feel unwell
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 97 °C / 206.6 °F |
| Transport (UN / ADR) | UN 2810 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 21-38 |
| Safety statements (S) | 36/37 |
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-Methylvaleric acid primarily used for?
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4-Methylvaleric acid is primarily used as an organic building block and an intermediate in chemical synthesis, notably in applications such as asymmetric synthesis.
What is the CAS number and molecular formula for 4-Methylvaleric acid?
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The CAS number for 4-Methylvaleric acid is 646-07-1, and its molecular formula is C6H12O2.
What grade and purity does Tech Serve Solutions supply for 4-Methylvaleric acid?
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Tech Serve Solutions supplies 4-Methylvaleric acid with an assay of 99% purity. This is typically considered a technical or research grade, and TSS does not represent it as USP, BP, or EP grade.
How should 4-Methylvaleric acid be handled safely?
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4-Methylvaleric acid is classified with GHS06 symbol and 'Danger' signal word, with hazards including H311 (Toxic in contact with skin) and H315 (Causes skin irritation). Appropriate personal protective equipment, such as gloves, eyeshields, and a suitable respirator, should be used. Refer to the safety data sheet for comprehensive handling guidelines.
How is 4-Methylvaleric acid packed, shipped, and exported?
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Tech Serve Solutions, as a specialist global supplier and exporter, ensures that 4-Methylvaleric acid is packed and shipped in compliance with all relevant international regulations for hazardous materials (UN 2810, 6.1 / PGIII).
How can I request a sample or quote for 4-Methylvaleric acid?
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To request a sample or a quote for 4-Methylvaleric acid, please contact the TSS sales department through our website or by phone, providing your specific requirements.
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