Valeroyl chloride
Valeroyl chloride (CAS: 638-29-9), with the linear formula CH3(CH2)3COCl and a molecular weight of 120.58 g/mol, is an acid halide used as a chemical intermediate. It is a key building block in organic synthesis. This reactive compound is supplied by Tech Serve Solutions with an assay of 98%, suitable for research and development purposes. TSS ensures adherence to stringent quality controls for this vital reagent.

Organic Synthesis Reagent
Valeroyl chloride serves as a versatile acylating agent in organic synthesis. It is employed in the introduction of the valeroyl group (CH3(CH2)3CO-) into various organic molecules, facilitating the creation of esters, amides, and other functionalized compounds.
Pharmaceutical Intermediate
This compound acts as a crucial intermediate in the synthesis pathways of certain pharmaceutical active ingredients (APIs). Its reactivity allows for the controlled formation of complex molecular structures required in drug development.
Building Block for Specialty Chemicals
As an organic building block, valeroyl chloride is utilised in the production of various specialty chemicals. It enables the precise construction of molecular frameworks for applications in materials science and fine chemical manufacturing.
| Molecular weight | 120.58 |
|---|---|
| Linear formula | CH3(CH2)3COCl |
| Assay | 98% |
| Boiling point | 125-127 °C(lit.) |
| Density | 1.016 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.42(lit.) |



Hazard statements
- H226Flammable liquid and vapour
- H314Causes severe skin burns and eye damage
- H331Toxic if inhaled
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- 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 | 32 °C / 89.6 °F |
| Transport (UN / ADR) | UN 2502 3(8) / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 10-20-35 |
| Safety statements (S) | 26-36/37/39-45 |
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 Valeroyl chloride (CAS 638-29-9) used for?
+
Valeroyl chloride is primarily used as a reagent in organic synthesis for acylation reactions, acting as a building block for pharmaceuticals and specialty chemicals. Its CAS number is 638-29-9 and its linear formula is CH3(CH2)3COCl.
What is the CAS number and formula for Valeroyl chloride?
+
The CAS number for Valeroyl chloride is 638-29-9 and its linear formula is CH3(CH2)3COCl.
What grade and purity does Tech Serve Solutions supply for Valeroyl chloride?
+
Tech Serve Solutions supplies Valeroyl chloride with an assay of 98%. TSS does not represent this product as USP, BP, EP, or any pharmacopoeia grade.
How is Valeroyl chloride handled and what are the safety considerations?
+
Valeroyl chloride is a flammable liquid and vapour (H226), causes severe skin burns and eye damage (H314), and is toxic if inhaled (H331). It requires handling with appropriate personal protective equipment, including respirators, gloves, and eye protection, in well-ventilated areas. Always consult the Safety Data Sheet (SDS) for comprehensive handling guidelines.
How is Valeroyl chloride packed, shipped, and exported by TSS?
+
Valeroyl chloride is packed in compliance with international shipping regulations for hazardous materials. As a global supplier, TSS exports this chemical worldwide, adhering to all relevant transport and customs requirements.
How can I request a sample or quote for Valeroyl chloride?
+
To request a sample or a quote for Valeroyl chloride, please use the contact form on our website or contact our sales department directly. Provide your details and the required quantity for prompt assistance.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis