diethyl hexyl phthalate

Full Material List

N/A

Identifiers

CAS (Single)	117-81-7
FEMA	N/A
EINECS	204-211-0
Synonyms	1,2- benzene dicarboxylic acid bis(2-ethyl hexyl) ester 1,2- benzenedicarboxylic acid bis(2-ethylhexyl) ester 1,2- benzenedicarboxylic acid, 1,2-bis(2-ethylhexyl) ester 1,2- benzenedicarboxylic acid, bis(2-ethylhexyl) ester bisoflex 81 caswell no. 392k DEHP di-(2-ethyl-hexyl) phthalate di-(2-ethylhexyl) phthalate di-2-ethylhexyl phthalate di-sec-octyl phthalate di(2-ethyl hexyl) phthalate di(2-ethyl-hexyl) phthalate di(2-ethylhexyl phthalate) di(2-ethylhexyl) phthalate di(2-ethylhexyl)phthalate diethylhexyl phthalate diethylhexylphthalate dioctyl phthalate (so called) sec- dioctyl phthalate dioctylpftalat ergoplast fdo ethyl hexyl phthalate bis(2- ethyl hexyl) 1,2-benzene dicarboxylate bis(2- ethyl hexyl) phthalate 2- ethylhexyl 2-[(2-ethylhexyl)oxycarbonyl]benzoate bis(2- ethylhexyl) benzene-1,2-dicarboxylate bis(2- ethylhexyl) phthalate bis-(2- ethylhexyl)phthalate bis(2- ethylhexyl)phthalate 2- ethylhexylphthalate fleximel hercoflex 260 sec- octyl phthalate phthalic acid bis(2-ethyl hexyl) ester phthalic acid bis(2-ethylhexyl ester) phthalic acid bis(2-ethylhexyl) ester phthalic acid bis(2-ethylhexyl)ester
JECFA Food Flavoring	N/A
JECFA Food Additive	N/A
DG SANTE Food Flavourings	N/A
DG SANTE Food Contact Materials	phthalic acid bis(2-ethylhexyl) ester
FDA UNII	C42K0PH13C
CoE Number	N/A
XlogP3-AA	7.40 (est)
Molecular Weight	390.56366
Molecular Formula	C24 H38 O4

Properties

Food Chemicals Codex Listed	No
Appearance	colorless clear oily liquid (est)
Assay	95.00 to 100.00
Specific Gravity	0.98400 to 0.98700 @ 20.00 °C.
Lbs/Gal (est)	8.197 to 8.222
Refractive Index	1.48500 to 1.48800 @ 20.00 Â°C.
Melting Point	-55.00 Â°C. @ 760.00 mm Hg
Boiling Point	384.00 Â°C. @ 760.00 mm Hg
Flash Point	405.00 Â°F. TCC ( 207.22 Â°C. )
Acid Value	N/A
Vapor Pressure	N/A
Vapor Density	N/A
logP (o/w)	7.6
Soluble In	water, 0.27 mg/L @ 25 °C (exp)
Occurrence	not found in nature

Organoleptic

Organoleptic Notes	Odor and/or flavor descriptions from others (if found).
Odor	N/A
Flavor	N/A

AInsights BETA

FlavScents AInsights Entry for Diethyl Hexyl Phthalate (CAS: 117-81-7)

1. Identity & Chemical Information

Common Name(s): Diethyl hexyl phthalate, DEHP
IUPAC Name: Bis(2-ethylhexyl) benzene-1,2-dicarboxylate
CAS Number: 117-81-7
FEMA Number: Not applicable
Other Identifiers: FL number not applicable, CoE number not applicable, IFRA reference not applicable
Molecular Formula: C24H38O4
Molecular Weight: 390.56 g/mol
Functional Groups and Structure–Odor Relevance: Diethyl hexyl phthalate is a phthalate ester, characterized by its ester functional group. It is primarily used as a plasticizer and does not have a significant odor profile relevant to flavor or fragrance applications.

Citation hooks: FlavScents; PubChem; FEMA

2. Sensory Profile

Diethyl hexyl phthalate is not typically used for its sensory properties in flavor or fragrance applications. It is primarily a plasticizer and does not contribute to odor or flavor profiles. Therefore, it lacks specific odor and flavor descriptors, and there are no established taste or odor thresholds.

Citation hooks: FlavScents; peer-reviewed sensory literature

3. Natural Occurrence & Formation

Diethyl hexyl phthalate is a synthetic compound and does not occur naturally. It is produced industrially through the esterification of phthalic anhydride with 2-ethylhexanol. As a synthetic chemical, it does not qualify for "natural flavor" or "natural fragrance" designations.

Citation hooks: FlavScents; food chemistry literature; EFSA/JECFA monographs

4. Use in Flavors

Diethyl hexyl phthalate is not used in flavor applications due to its primary role as a plasticizer. It does not contribute to flavor systems and is not present in food or beverages at any ppm levels for flavor purposes. Its stability considerations are more relevant to its use in materials rather than consumables.

Citation hooks: FlavScents; FEMA GRAS documentation; formulation literature

5. Use in Fragrances

Similarly, diethyl hexyl phthalate is not used in fragrance formulations. Its role as a plasticizer means it is more relevant to the production of flexible plastics rather than contributing to fragrance profiles. It does not have a volatility profile that would contribute to top, middle, or base notes in perfumery.

Citation hooks: FlavScents; IFRA; fragrance chemistry texts

6. Regulatory Status (Regional Overview)

United States: Diethyl hexyl phthalate is not approved for use as a flavor or fragrance ingredient. It is regulated by the FDA primarily as a plasticizer.
European Union: Under Regulation (EC) No 1334/2008, it is not listed as a flavoring substance. Its use is restricted in materials that come into contact with food.
United Kingdom: Post-Brexit, the UK aligns with EU regulations regarding the use of diethyl hexyl phthalate.
Asia: In countries like Japan and China, DEHP is regulated for use in materials rather than as a flavor or fragrance ingredient.
Latin America: Similar to other regions, DEHP is not used in flavors or fragrances and is regulated as a plasticizer.

Citation hooks: FEMA; EFSA; national authority publications

7. Toxicology, Safety & Exposure Considerations

Oral Exposure: Diethyl hexyl phthalate is not intended for oral consumption. It is not used in food products, and its ADI or MSDI is not applicable for flavor use.
Dermal Exposure: In fragrance applications, DEHP is not used due to potential irritation and sensitization concerns. It is not relevant to IFRA guidelines for fragrance safety.
Inhalation Exposure: As a volatile compound, occupational exposure considerations are more relevant in industrial settings where DEHP is used as a plasticizer.

Citation hooks: EFSA; FEMA; PubChem; toxicology literature

8. Practical Insights for Formulators

Diethyl hexyl phthalate is not valuable for flavor or fragrance formulators due to its lack of sensory properties. Its primary use as a plasticizer means it is more relevant to material scientists and engineers. Formulators should be aware of its regulatory restrictions and potential health concerns when used in materials that may come into contact with food or skin.

Citation hooks: FlavScents; industry practice

9. Confidence & Data Quality Notes

The data regarding diethyl hexyl phthalate's use in flavors and fragrances is well-established, primarily indicating its non-use in these applications. Regulatory and safety data are robust, focusing on its role as a plasticizer. There are no significant data gaps regarding its sensory properties, as it is not used for such purposes.

Citation hooks: FlavScents

QA Check

All required sections 1–9 are present
"Citation hooks:" line is present under each section
Flavor section includes ppm ranges (not applicable for DEHP)
Toxicology section covers oral, dermal, inhalation
Regulatory section mentions US, EU, UK, Asia, Latin America
If complex natural material: includes section 5a (not applicable for DEHP)

About FlavScents AInsights (Disclosure)
FlavScents AInsights integrates information from authoritative government, scientific, academic, and industry sources to provide applied, exposure-aware insight into flavor and fragrance materials. Data are drawn from regulatory bodies, expert safety panels, peer-reviewed literature, public chemical databases, and long-standing professional practice within the flavor and fragrance community. Where explicit published values exist, they are reported directly; where gaps remain, AInsights reflects widely accepted industry-typical practice derived from convergent sensory behavior, historical commercial use, regulatory non-objection, and expert consensus. All such information is clearly labeled to distinguish documented data from professional guidance or informed estimation, with the goal of offering transparent, practical, and scientifically responsible context for researchers, formulators, and regulatory specialists. This section is generated using advanced computational language modeling to synthesize and structure information from established scientific and regulatory knowledge bases, with the intent of supporting—not replacing—expert review and judgment.

Generated 2026-03-21 09:45:03 GMT (p2)

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