Dibutyl Phthalate

Other Trading Names:

  • DBP

CAS Number: 84-74-2

HS Code: 29173910

Types of Packaging:

  • 200kg/drum
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Availability: In stock
Dibutyl Phthalate

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Colorless Transparent oily liquid



Content (GC)

≥99.5 %



Acid Value


Color (APHA)


Flash Point


Chemical Description

  • Dibutyl phthalate (DBP) is a colorless, oily liquid that belongs to the class of phthalate esters, specifically a diester of phthalic acid.
  • The chemical formula of dibutyl phthalate is C16H22O4, and its molecular weight is approximately 278.35 g/mol.
  • DBP is synthesized through the esterification of phthalic anhydride with n-butanol in the presence of a catalyst.
  • It is commonly used as a plasticizer, a substance added to plastics to increase their flexibility, transparency, durability, and longevity.
  • Dibutyl phthalate is widely utilized in the manufacture of flexible plastics such as polyvinyl chloride (PVC) and cellulose plastics.
  • It also finds applications in the formulation of adhesives, sealants, and printing inks, where it helps improve workability and adhesion properties.
  • In cosmetics and personal care products, DBP is used as a solvent and fixative in perfumes and as a plasticizer in nail polishes to enhance the product's spreadability and durability.
  • DBP exhibits low volatility and high stability, making it suitable for use in various industrial and consumer applications.
  • The compound is also employed as a component in explosive formulations, where it acts as a plasticizer to increase the flexibility of the explosive material.
  • In laboratory settings, dibutyl phthalate serves as a standard substance in chromatographic analyses and as a plasticizer in polymer research.
  • Despite its widespread use, dibutyl phthalate is a subject of regulatory scrutiny due to its potential health and environmental impacts.
  • DBP can be absorbed through the skin, inhaled, or ingested, leading to possible adverse effects such as endocrine disruption and reproductive toxicity.
  • The compound is classified as a priority substance under the European Union's REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) regulation.
  • Dibutyl phthalate is also included in the list of chemicals subject to Proposition 65 in California, which requires businesses to provide warnings about significant exposures to chemicals that cause cancer, birth defects, or other reproductive harm.
  • Environmental concerns related to DBP include its persistence and potential to bioaccumulate in aquatic and terrestrial ecosystems, posing risks to wildlife.
  • Efforts to find safer alternatives to dibutyl phthalate in various applications are ongoing, with research focusing on developing non-phthalate plasticizers with similar performance characteristics.
  • Proper handling and disposal of DBP are essential to minimize its environmental and health impacts, and safety guidelines should be followed to reduce exposure risks.
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Dibutyl Phthalate