Plasticizers
REACH
Dimethyl phthalate
CAS Number
131-11-3
EC Number
205-011-6
Abbreviation
DMP
What is Dimethyl phthalate?
Dimethyl phthalate (CAS 131-11-3), commonly sourced as DMP, is a phthalate ester plasticizer and solvent.
Where is Dimethyl phthalate used?
- Plastics processing: plasticizer for cellulose acetate and cellulose acetate butyrate, improving flexibility in film, sheet, and molded components
- Personal care: solvent and fixative in nail lacquers and hair sprays, supporting film formation and fragrance retention
- Printing inks and coatings: solvent carrier aiding pigment dispersion and resin dissolution in nitrocellulose-based systems
- It also functions as a UV stabilizer in certain polymer formulations.
Commercial specifications
- Clear, low-viscosity liquid in drum and IBC quantities
- Technical grade, purity typically 99% or above
- Bulk tanker supply from major producers
Other Names (Synonyms)
DMP|Dimethyl ester of 1,2-benzenedicarboxylic acid|Avolin|Mipax|Palatinol M|Solvanom|Solvarone|Fermine
What are the physical properties of Dimethyl phthalate?
Melting Point 5.5 °C
Boiling Point 283.7 °C @ Press: 760 Torr
Density 1.189 g/cm³ @ Temp: 25 °C
Flash Point 295 °F
Appearance colourless oily liquid
Color Clear
Odor sl. aromatic odor
Form Liquid
Water Solubility <0.1 g/100 mL at 20 ºC
Vapor Pressure 0.008 hPa (20 °C)
Refractive Index n 20/D 1.515(lit.)
pH 7 (H2O, 20℃)
Log P 1.54 at 25℃
How is Dimethyl phthalate classified and handled safely? Learn More
Danger
GHS02· Flammable GHS05· Corrosive GHS07· Irritant GHS09· Environmental Hazard
Hazard Statements
H242 Heating may cause a fire
H302 Harmful if swallowed
H314 Causes severe skin burns and eye damage
H317 May cause an allergic skin reaction
Precautionary Statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P234 Keep only in original packaging.
P235 Keep cool.
P240 Ground and bond container and receiving equipment.
Which trade and regulatory codes apply to Dimethyl phthalate?
HS Code 29173490
UN Number 3082
Storage Class 10 - Combustible liquids
WGK (Germany) 1