Vinati Organics Ltd is the largest manufacturer of Iso Butyl Benzene (CAS No. 538-93-2) in the World.


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General Information and Properties

Iso butyl benzene or IBB is a colourless chemical compound with the molecular formula C10H14. It has a specific gravity of around 0.852. Another name for Iso Butyl benzene or IBB is 2-methyl-1-phenylpropene. It is manufactured out of toluene, propylene, potassium carbonate, sodium among other chemicals.

Chemical Properties:
Appearance: Clear, colourless liquid
CAS Number: 538-93-2
Density: 0.852 g/cm3
Melting Point: -51 °C
Molar Mass: 144.22 g/mol
IUPAC Name: 2-Methylpropylbenzene
Physical State: Liquid (at room temperature)
Solubility: Soluble in ether, alcohol, benzene and ethanol. It is insoluble in water.
Other synonyms: 2-Methyl-1-phenylpropane, Isobutylbenzene,99% 1-Phenylisobutane, isobutyl benzene (2-methyl propyl)-benzene

Product Name: Iso Butyl Benzene

Molecular formula C10H14



    IBB is a basic raw material, used in the pharmaceutical and perfumery industries. We have a record purity level of 99.8%,vis-à-vis the prevailing international standard of 99.5%.



    IBB (CAS No. 538-93-2) is a basic raw material used in the pharmaceutical and perfumery industry.

    Vinati Organics Limited is the largest manufacturer of Iso butyl benzene in the world with some of the highest purities necessary for the pharmaceutical industry. It is a basic raw material for manufacturing Ibuprofen, an anti-inflammatory analgesic bulk drug, widely used across the US, Europe and Asia

    Industry ApplicationsRelevance
    It is used in the pharmaceutical industryIt is a basic raw material for manufacturing Ibuprofen, an anti-inflammatory analgesic bulk drug, widely used across the US, Europe and Asia.


    How is it manufactured?

    The production of IBB involves the reaction of toluene with propylene in the presence of a sodium/potassium alloy (NaK2) catalyst. A mixture of IBB and NBB (n-butylene) is then produced with IBB predominating. This reaction is performed batch-wise using a mixture of fresh and recycled catalyst phases.

    It is reasonable to assume that pure iso butyl benzene will be produced through this reaction as the unit operations for this process design do not differ greatly from current commercial practice.

    Industry Applications

    • IBB is widely used as a basic raw material in the manufacture of various pharmaceutical and perfume products. Ibuprofen- an analgesic, anti-inflammatory, over the counter painkiller uses iso butyl benzene as one of the main ingredients. 4-isobutylacetophenone is an intermediate formed during the production of ibuprofen- is prepared by the acylation of isobutyl benzene 538-93-2.
    • IBB is often used as a speciality solvent and as a solid acid catalyst for the acylation of aromatic substances.
    • The smell of iso butyl benzene is a fruity, sweet and cherry-like odour with a balsamic nuance. This characteristic has made it a basic raw material for the perfume industry across the globe.


    Vinati Organics is one of the topmost iso butyl benzene manufacturers and suppliers in India. We supply organic IBB to a broad range of industrial markets including personal care, chemical industry coating markets and even households. The organic IBB by Vinati Organics is offered at a very competitive price with a record purity of 99.8% which is very close to the prevailing international standards of 99.5%.

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