4-Isopropylbenzoic acid
4-Isopropylbenzoic acid (CAS 536-66-3) is a white crystalline solid with the molecular formula (CH3)2CHC6H4CO2H and a molecular weight of 164.20 g/mol. This organic compound functions as a valuable building block in chemical synthesis. It is particularly utilised in the creation of novel organotin carboxylates and other complex organic molecules. Tech Serve Solutions supplies 4-Isopropylbenzoic acid with an assay of ≥98%.
- IUPAC
- Cumic acid,Cuminic acid
- Synonyms
- Cumic acidCuminic acid

Synthesis of Organotin Carboxylates
4-Isopropylbenzoic acid is employed in the synthesis of triorganotin carboxylates, featuring methyl, butyl, and phenyl substituents on the tin atom. This application allows for detailed spectroscopic and thermal characterisation of the resulting compounds.
Organic Synthesis Intermediate
As a functionalised aromatic carboxylic acid, it serves as a versatile intermediate in broader organic synthesis pathways. Its structure is amenable to various chemical transformations for the construction of more complex molecules.
Research and Development
This compound is suitable for research and development purposes in academic and industrial laboratories exploring new chemical entities and reaction methodologies.
| Molecular weight | 164.20 |
|---|---|
| Linear formula | (CH3)2CHC6H4CO2H |
| Assay | ≥98% |
| Solubility | alcohol: soluble(lit.)diethyl ether: soluble(lit.)sulfuric acid: soluble(lit.)water: slightly soluble(lit.) |
| Application | 4-Isopropylbenzoic acid (cuminic acid) was used in the synthesis of three new triorganotin carboxylates bearing methyl, butyl and phenyl substituents at tin, respectively. The products were fully characterized by spectroscopic and thermal techniques, with regard to the coordination number of tin atom, in solution and in the solid state1. |
| Melting point | 117-120 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 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 4-Isopropylbenzoic acid used for?
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4-Isopropylbenzoic acid is used as a building block in organic synthesis, notably for the preparation of triorganotin carboxylates and other complex organic molecules in research and development.
What is the CAS number and formula for 4-Isopropylbenzoic acid?
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The CAS number for 4-Isopropylbenzoic acid is 536-66-3, and its linear formula is (CH3)2CHC6H4CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Isopropylbenzoic acid with a minimum assay of ≥98%. We do not represent this product as USP, BP, or EP grade.
What are the safety and handling precautions for 4-Isopropylbenzoic acid?
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4-Isopropylbenzoic acid is a warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Ensure adequate ventilation.
How is 4-Isopropylbenzoic acid packed, shipped, and exported?
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Tech Serve Solutions exports fine chemicals globally. Products are carefully packed according to international shipping regulations to ensure safe transit. Specific packaging details are available upon request.
How can I request a quote or sample for 4-Isopropylbenzoic acid?
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To request a quote or sample of 4-Isopropylbenzoic acid, please contact our sales department through the website or by phone. Our team will be pleased to assist you.
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