Diundecyl phthalate
- CAS NO.：3648-20-2
- Empirical Formula: C30H50O4
- Molecular Weight: 474.72
- MDL number: MFCD00043729
- EINECS: 222-884-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 01:18:08
What is Diundecyl phthalate?
Chemical properties
Pale Yellow Oil
The Uses of Diundecyl phthalate
Diundecyl Phthalate is a phthalate diester and has been investigated for its toxicology in male rats for risk assessment.
Production Methods
DUP is manufactured by the reaction of phthalic anhydride with undecanol in the presence of an acid catalyst.
General Description
Oily colorless odorless liquid. Less dense than water.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Diundecyl phthalate reacts with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by interaction with caustic solutions. Flammable hydrogen is generated by mixing with alkali metals and hydrides. Can generate electrostatic charges [Handling Chemicals Safely, 1980. p. 250].
Health Hazard
Produces no ill effects at normal temperatures but may give off irritating vapor at high temperature.
Fire Hazard
Diundecyl phthalate is probably combustible.
Flammability and Explosibility
Not classified
Properties of Diundecyl phthalate
| Melting point: | 2°C |
| Boiling point: | 523 °C(lit.) |
| Density | 0.95 g/mL at 25 °C(lit.) |
| vapor pressure | 0Pa at 20℃ |
| refractive index | n20/D 1.48(lit.) |
| Flash point: | 241 °C |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Chloroform (Slightly), Ethyl Acetate (Slightly) |
| form | Oil |
| color | Colourless to Pale Yellow |
| Water Solubility | 11.7mg/L at 20℃ |
| NIST Chemistry Reference | 1,2-Benzenedicarboxylic acid, diundecyl ester(3648-20-2) |
| EPA Substance Registry System | Diundecyl phthalate (3648-20-2) |
Safety information for Diundecyl phthalate
| Signal word | Danger |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H361:Reproductive toxicity H372:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P201:Obtain special instructions before use. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P312:Call a POISON CENTER or doctor/physician if you feel unwell. P391:Collect spillage. Hazardous to the aquatic environment P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P501:Dispose of contents/container to..… |
Computed Descriptors for Diundecyl phthalate
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