Diisopropyl Adipate (DIPA) CAS 6938-94-9

What Is Diisopropyl Adipate?

Diisopropyl adipate, commonly abbreviated as DIPA, is a clear, colorless specialty ester identified by CAS No. 6938-94-9. It is produced from adipic acid and isopropyl alcohol.

Its low viscosity, oil compatibility and spreading properties make it useful as an emollient, solvent, sensory modifier and plasticizer in personal-care and industrial formulations.

AOZUN supplies diisopropyl adipate for cosmetic and industrial applications, subject to specification and application confirmation.

Is Diisopropyl Adipate Organic or Inorganic?

Diisopropyl adipate is an organic compound belonging to the adipate ester family.

Commercially, it is primarily classified as a fine chemical and specialty ester. It may also be classified as an organic intermediate when used in further chemical processing.

Recommended website classification:

• Fine Chemicals

• Specialty Esters

• Cosmetic Ingredients

• Plasticizers

• Organic Intermediates

It should not automatically be classified as an API or pharmaceutical-grade excipient.

Diisopropyl Adipate Identification

The values above are reference data. Use the current specification and batch COA for product acceptance.

Typical Diisopropyl Adipate Specification

AOZUN’s currently published commercial specification is:

Additional parameters such as density, refractive index, odor and residual isopropanol may be available by agreement.

Which DIPA Specifications Should Buyers Compare?

Products with similar assay values may still differ in acidity, moisture, color, odor and residual impurities. These differences can affect formulation appearance, stability and sensory performance.

Assay

Confirm the minimum assay and analytical method. GC purity is commonly used for commercial DIPA.

Acid Value

Acid value may indicate residual adipic acid or product degradation. A low acid value is important for acid-sensitive formulations and consistent emulsion performance.

Moisture

Water content can affect anhydrous products, moisture-sensitive ingredients and long-term storage stability.

Color and Odor

Low color is important for clear or light-colored products. Personal-care and fragrance applications may also require an agreed odor standard.

Density and Refractive Index

These properties help confirm product identity and batch consistency.

What Is Diisopropyl Adipate Used For?

Personal-Care and Cosmetic Formulations

DIPA may function as a lightweight emollient and sensory modifier in:

• Lotions and creams

• Facial emulsions

• Body-care products

• Anhydrous serums

• After-shave products

• Hair serums

• Color cosmetics

It may improve spreading and reduce the heavy feel of selected oil-phase ingredients. Actual sensory performance should be confirmed in the finished formulation.

Sunscreen Formulations

DIPA may be evaluated as an oil-phase emollient and solvent for compatible organic UV filters.

Formulators must verify:

• UV-filter solubility

• Crystallization

• Emulsion stability

• Photostability

• Packaging compatibility

• Finished-product SPF and UVA performance

DIPA should not be described as increasing SPF without finished-product test data.

Color Cosmetics

Its low viscosity can support pigment wetting and product spreading in foundations, concealers, lip products and cream color cosmetics.

Performance depends on the pigment, surface treatment, dispersant system and other oils.

Hair and Nail Products

DIPA may be used as a solvent or plasticizer in compatible hair-styling and nail-coating systems. It can help modify film flexibility and reduce brittleness.

Compatibility with the selected resin or film-forming polymer must be tested.

Industrial Applications

Industrial uses may include:

• Specialty coatings

• Adhesives

• Polymer systems

• Flexible films

• Cleaning formulations

• Resin formulations

• Pigment dispersions

The buyer should evaluate process compatibility, migration, emissions and finished-material performance.

DIPA vs Other Adipate Esters

These ingredients are not direct one-to-one replacements. Substitution can change viscosity, solubility, sensory profile, film flexibility and emulsion stability.

Does DIPA Always Mean Diisopropyl Adipate?

No. DIPA may also refer to diisopropanolamine.

Always include the full product name and CAS number in quotations, purchase orders and technical documents.

How to Select the Right DIPA Grade

Before ordering, confirm:

1. Intended application

2. Required assay

3. Maximum acid value

4. Maximum moisture

5. Maximum color

6. Odor requirements

7. Density and refractive-index range

8. Residual impurity limits

9. Required packaging

10. Regulatory and documentation requirements

Cosmetic, food-related and pharmaceutical-related applications may require different specifications and quality documentation. A high assay alone does not establish regulatory suitability.

Packaging and Storage

AOZUN currently lists:

• 190 kg net weight per drum

• Approximately 15.2 MT per 20-foot container with pallets

Confirm the drum material, seal, pallet configuration and loading quantity before ordering.

Store diisopropyl adipate:

• In tightly closed original containers

• In a cool, dry and ventilated area

• Away from excessive heat and direct sunlight

• Away from strong oxidizing agents

• Protected from moisture and contamination

Use clean and compatible transfer equipment.

Safety and Transport

Users should follow the SDS supplied with the delivered product.

General precautions include:

• Avoid eye and prolonged skin contact.

• Provide ventilation during bulk transfer.

• Wear suitable gloves and eye protection.

• Prevent uncontrolled release into drains.

• Keep away from strong oxidizing agents.

• Dispose of waste according to local regulations.

Many commercial SDSs list diisopropyl adipate as not regulated as dangerous goods for ordinary road, sea or air transport. Confirm this using the current SDS and destination requirements.

What Documents Are Available?

Depending on the order and grade, buyers may request:

• Certificate of Analysis

• Safety Data Sheet

• Technical Data Sheet

• Product specification

• Batch traceability

• Country-of-origin information

• Regulatory inventory statement

• Packaging information

• Additional cosmetic or application-specific documents

Why Source Diisopropyl Adipate from AOZUN?

AOZUN supports international buyers with:

• Specification confirmation

• Representative COA review

• Sample availability

• Commercial packaging

• Export documentation

• Batch traceability

• International logistics coordination

Final suitability should be confirmed through formulation testing and regulatory review.

Frequently Asked Questions

What is the CAS number of diisopropyl adipate?

Its CAS number is 6938-94-9.

Is diisopropyl adipate organic or inorganic?

It is an organic adipate ester.

Is DIPA a fine chemical or an intermediate?

It is primarily a specialty ester and fine chemical. It can also serve as an organic intermediate.

Is DIPA soluble in water?

No. It is practically insoluble in water and is normally incorporated into the oil phase of a formulation.

What is the correct boiling point?

The atmospheric boiling point is approximately 251–253°C. The commonly quoted value of approximately 120°C applies under reduced pressure, around 6.5 mmHg.

Can DIPA be used in sunscreen?

It may be evaluated as an emollient or solvent for compatible UV filters. Solubility, crystallization, stability and finished-product performance must be tested.

Is DIPA a pharmaceutical API?

No. General commercial DIPA should not be classified as an API.

What is AOZUN’s typical DIPA purity?

AOZUN’s currently published specification lists an assay of at least 99.5%, subject to confirmation by the current specification and batch COA.

Request a Diisopropyl Adipate Quotation

Contact AOZUN for diisopropyl adipate, CAS No. 6938-94-9.

Please provide your application, required specification, quantity, packaging, destination and document requirements to receive an appropriate quotation.