3-Methyl-4-pentenoic acid

CAS 1879-03-4CH2=CHCH(CH3)CH2CO2HChemical Synthesis

3-Methyl-4-pentenoic acid (CAS 1879-03-4) is a carboxylic acid with the linear formula CH2=CHCH(CH3)CH2CO2H and a molecular weight of 114.14 g/mol. This organic building block is primarily utilised in chemical synthesis. With a density of 0.94 g/mL at 25 °C and a boiling point of 75-76 °C/4 mmHg, it serves as a versatile intermediate in various research and development applications.

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3-Methyl-4-pentenoic acid (CH2=CHCH(CH3)CH2CO2H) — chemical structure, CAS 1879-03-4; Chemistry, fine chemical supplied by Tech Serve Solutions

Building BlocksCarbonyl CompoundsCarboxylic AcidsChemical Synthesis

01 /Applications

Organic Synthesis Intermediate

3-Methyl-4-pentenoic acid is employed as a key intermediate in the synthesis of more complex organic molecules. Its functional groups allow for a range of chemical transformations, making it valuable in research laboratories.

Building Block for Fine Chemicals

As a C6 carboxylic acid, it acts as a fundamental building block in the creation of various fine chemicals. Its structure offers specific reactivity for targeted synthetic pathways.

Research and Development

This compound is utilized in academic and industrial research settings for exploring new synthetic methodologies and developing novel chemical entities. Its availability supports R&D projects requiring specific structural motifs.

02 /Properties

Molecular weight	114.14
Linear formula	CH2=CHCH(CH3)CH2CO2H
Assay	97%
Boiling point	75-76 °C/4 mmHg(lit.)
Density	0.94 g/mL at 25 °C(lit.)
Refractive index	n20/D 1.429(lit.)

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

Danger

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

Protective equipment	Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point	93 °C / 199.4 °F
Transport (UN / ADR)	UN 3265 8 / PGII
Water hazard class (WGK, DE)	3
Hazard codes (EU)	C
Risk statements (R)	34
Safety statements (S)	23-26-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

1879-03-4

MDL number

MFCD03427129

PubChem substance

24879305

05 /Quality & supply

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.

06 /Frequently asked questions

What is 3-Methyl-4-pentenoic acid used for?

3-Methyl-4-pentenoic acid is primarily used as an intermediate in organic synthesis and as a building block for fine chemicals in research and development applications.

What are the CAS number and formula for 3-Methyl-4-pentenoic acid?

The CAS number for 3-Methyl-4-pentenoic acid is 1879-03-4, and its linear formula is CH2=CHCH(CH3)CH2CO2H.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies 3-Methyl-4-pentenoic acid with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.

How should 3-Methyl-4-pentenoic acid be handled safely?

3-Methyl-4-pentenoic acid is classified as Danger (GHS05), with hazard statement H314 (Causes severe skin burns and eye damage). Appropriate personal protective equipment including faceshields, gloves, goggles, and suitable respirators must be used during handling.