Diallyl phthalate
- CAS No.
- 131-17-9
- Chemical Name:
- Diallyl phthalate
- Synonyms
- DAP;Diallyl phthalate(DAP);DAP MonoMer;Dially Phthalate;DAP(Diallyl Phthalate);Dappu;daponr;Dapon R;dapon35;Dapon 35
- CBNumber:
- CB0246486
- Molecular Formula:
- C14H14O4
- Molecular Weight:
- 246.26
- MDL Number:
- MFCD00008646
- MOL File:
- 131-17-9.mol
- MSDS File:
- SDS
| Melting point | -70 °C |
|---|---|
| Boiling point | 165-167 °C/5 mmHg (lit.) |
| Density | 1.121 g/mL at 25 °C (lit.) |
| vapor density | 8.3 (vs air) |
| vapor pressure | 2.3 mm Hg ( 150 °C) |
| refractive index |
n |
| Flash point | >230 °F |
| storage temp. | Inert atmosphere,2-8°C |
| solubility | 0.18g/l |
| form | Liquid |
| color | Clear colorless to light yellow |
| Odor | mild odor |
| Water Solubility | 6 g/L (20 ºC) |
| Thermal Conductivity | 0.305 W/(m·K) |
| BRN | 1880877 |
| Henry's Law Constant | 3.5×101 mol/(m3Pa) at 25℃, Sa\cc (2005) |
| Major Application |
cleaning products cosmetics environmental food and beverages personal care |
| InChI | 1S/C14H14O4/c1-3-9-17-13(15)11-7-5-6-8-12(11)14(16)18-10-4-2/h3-8H,1-2,9-10H2 |
| InChIKey | QUDWYFHPNIMBFC-UHFFFAOYSA-N |
| SMILES | C=CCOC(=O)c1ccccc1C(=O)OCC=C |
| LogP | 3.23 at 20℃ |
| Toxicology and Carcinogenesis |
Toxicology and Carcinogenesis Studies of Diallylphthalate (CASRN 131-17-9) in F344/N Rats (Gavage Studies) Carcinogenesis Bioassay of Diallyl Phthalate (CASRN 131-17-9) in B6C3F1 Mice (Gavage Study) |
| FDA 21 CFR | 175.105; 176.170; 176.180 |
| Indirect Additives used in Food Contact Substances | DIALLYL PHTHALATE |
| CAS DataBase Reference | 131-17-9(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | F79L0UL6ST |
| NIST Chemistry Reference | 1,2-Benzenedicarboxylic acid, di-2-propenyl ester(131-17-9) |
| EPA Substance Registry System | Diallyl phthalate (131-17-9) |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() ![]() GHS07,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302+H332-H317-H410 | |||||||||
| Precautionary statements | P261-P273-P280-P301+P312-P302+P352-P304+P340+P312 | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | Xn,N | |||||||||
| Risk Statements | 22-50/53 | |||||||||
| Safety Statements | 24/25-60-61 | |||||||||
| RIDADR | UN 3082 9/PG 3 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | CZ4200000 | |||||||||
| F | 19 | |||||||||
| Autoignition Temperature | 725 °F | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 9 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29173400 | |||||||||
| Storage Class | 10 - Combustible liquids | |||||||||
| Hazard Classifications | Acute Tox. 4 Inhalation Acute Tox. 4 Oral Aquatic Acute 1 Aquatic Chronic 1 Skin Sens. 1B |
|||||||||
| Hazardous Substances Data | 131-17-9(Hazardous Substances Data) | |||||||||
| REACH Registrations | Active | |||||||||
| Limited Quantities | 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L) | |||||||||
| NFPA 704 |
|
Diallyl phthalate price More Price(37)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 269379 | Diallyl phthalate 97% | 131-17-9 | 250ml | $59.3 | 2026-04-30 | Buy |
| Sigma-Aldrich | 269379 | Diallyl phthalate 97% | 131-17-9 | 1l | $118 | 2026-04-30 | Buy |
| TCI Chemical | P0290 | Diallyl Phthalate >98.0%(GC) | 131-17-9 | 25mL | $22 | 2026-04-30 | Buy |
| TCI Chemical | P0290 | Diallyl Phthalate >98.0%(GC) | 131-17-9 | 500mL | $42 | 2026-04-30 | Buy |
| Usbiological | 522152 | DAP Purifiedbyimmunoaffinitychromatography. | 100ul | $736 | 2026-06-03 | Buy |
Diallyl phthalate Chemical Properties, Uses, Production
Description
Diallyl phthalate is a widely used crosslinking agent for unsaturated polyesters. Diallyl phthalate or diallyl phthalate polyester blends are used primarily as plasticizers and carriers for adding catalysts and pigments to polyesters and in molding, electrical parts, laminating compounds, and impregnation of metal castings. Rubber compounds, epoxy formulations, and polyurethane foams may also contain diallyl phthalate[1].
Chemical Properties
clear colourless to light yellow liquid
Uses
Diallyl Phthalate is used as a reagent in ring-closing ruthenium based reactions.
Application
Diallyl phthalate is an important monomer for the production of thermosetting molding compounds, which must have good dimensional stability and electrical properties, and be resistant to heat and solvents. Diallyl phthalate can be polymerized or copolymerized. This usually is done by dissolving the diallyl phthalate monomer in 2- propanol, adding 50% hydrogen peroxide at about 105 ℃, and precipitating the prepolymer from the cooled, viscous solution with excess 2- propanol. Copolymers containing diallyl phthalate are suitable for specialty coating and for embedding, especially in the production of electronic devices. For example, the moisture-sensitive epoxy compounds now used in light-emitting diode (LED) displays can be replaced by stable diallyl phthalate epoxy encapsulating resins. By adding inorganic materials to diallyl phthalate prepolymer compositions, reinforced thermosetting molding compounds can be obtained. Glass cloth or paper can be impregnated with a solution of prepolymer, monomer, and peroxide initiator. After removal of the solvent, the glass cloth or paper is cured to give the desired film-protected material, which is used for decoration, stain-resistant overlays for household articles, and furniture.
Preparation
Diallyl phthalate (DAP) is prepared by reaction of phthalic anhydride and allyl alcohol:

General Description
Clear pale-yellow liquid. Odorless.
Air & Water Reactions
Incompatible with water and oxygen. Should be stored air tight, with inhibitor, to prevent polymerization reaction .
Reactivity Profile
Diallyl phthalate can react with oxidizers. Diallyl phthalate can also react with acids and alkalis. Diallyl phthalate is incompatible with water and oxygen.
Fire Hazard
Diallyl phthalate is combustible.
Flammability and Explosibility
Not classified
Safety Profile
Suspected carcinogen with experimental carcinogenic data. Moderately toxic by ingestion, skin contact, intraperitoneal, and subcutaneous routes. An eye irritant. Mutation data reported. Combustible when exposed to heat or flame; can react with oxidzing materials. To fight fire, use CO2 or dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALLYL COMPOUNDS and ESTERS.
Carcinogenicity
In the 103-week study referred
to previously, a slight increase in MNCL was seen in
female rats treated with 50 or 100 mg/kg/day of DAP. MNCL
occurs in F344 control rats at a high incidence; however, the
incidence of 51% in female rats at the high dose level was
above historical control data for the laboratory (29%). No
significant increases in tumor incidences were seen in male
rats. Based on this study, DAP was considered to have
demonstrated equivocal evidence for carcinogenicity in
female F344 rats according to the NTP.
In male and female B6C3F1 mice receiving 300 mg/kg of
DAP by gavage for 103 weeks (5 days/week), the incidence
of forestomach papillomas was significantly greater than that
of controls. Because of the rarity of forestomach
papillomas in control B6C3F1 mice and the concomitant
observation of dose-related forestomach hyperplasia, the
development of these tumors was considered to be test
substance related. Compared to controls, a slight increase
in the incidence of lymphomas was observed in males
receiving 300 mg/kg/day of DAP. Because the increase
was not statistically significant compared to historical control
data, this effect was not considered to be test substance
related.
Toxics Screening Level
The initial risk screening level (IRSL) for diallyl phthalate is 0.1 μg/m3 based on an annual averaging time.
References
[1] NTP Carcinogenesis Bioassay of Diallyl Phthalate (CAS No. 131-17-9) in B6C3F1 Mice (Gavage Study). (1983). National Toxicology Program Technical Report Series, 242, 1–96.
Diallyl phthalate Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shouguang Nuomeng Chemical Co Ltd. | 0536-5399456 13869682027 | holly@nuomengchem.com | China | 47 | 58 |
| Shandong Vantage Specialty Chemicals Biotechnology Co., Ltd. | 13396369453 18678026865 | sdfantai@163.com | China | 904 | 58 |
| Hubei Hengjie Chemical Co., Ltd | 15623078521; 15623078521 | 1836463726@qq.com | China | 3578 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 18930552037 | 3bsc@sina.com | China | 15813 | 69 |
| future industrial shanghai co., ltd | 400-0066400 13621662912 | sales@jonln.com | China | 1989 | 65 |
| HanerChem | 020-82488509,13928734585 | China | 41 | 55 | |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
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View Latest Price from Diallyl phthalate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-10-18 | Diallyl phthalate
131-17-9
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
![]() |
2026-09-02 | Diallyl phthalate
131-17-9
|
$1.00-122.00 | 1KG | 99% | Henan Fengda Chemical Co., Ltd | ||
![]() |
2026-08-25 | Diallyl phthalate, DAP monomer
131-17-9
|
$3500.00 | 1KG | 99.5% | 120 tons per month | Shouguang Nuomeng Chemical Co Ltd. |
-

- Diallyl phthalate
131-17-9
- 0.99
- RongNa Biotechnology Co.,Ltd
-

- Diallyl phthalate
131-17-9
- $1.00-122.00
- 99%
- Henan Fengda Chemical Co., Ltd
-

- Diallyl phthalate, DAP monomer
131-17-9
- $3500.00
- 99.5%
- Shouguang Nuomeng Chemical Co Ltd.









