Specialty Additives Available to Source

Diisononyl Phthalate (DINP)

CAS 28553-12-0 · MF C26H42O4 · MW 418.6 g/mol

Diisononyl Phthalate (DINP) is a phthalate ester plasticizer that provides lubrication and plasticization properties in industrial formulations. This chemical additive is primarily utilized in the plastics and polymers industry to enhance flexibility and processability of polymer systems. With a molecular weight of 418.6 g/mol and density of 0.98, DINP offers…

SDS / TDS Download
CAS Number
28553-12-0
Molecular Formula
C26H42O4
Molecular Weight
418.6 g/mol
Material Family
Specialty Additives
Functional Roles
Physical Properties
physical_description
Di-isononyl phthalate is an oily colorless liquid with a slight ester odor. Denser than water. Insoluble in water. (USCG, 1999)
color/form
Colorless liquid
boiling_point
172 u00b0F at 760 mmHg (USCG, 1999)
melting_point
-48 u00b0C
flash_point
greater than 200 u00b0F (NTP, 1992)
solubility
Soluble in acetone, methanol, benzene, ethyl ether
density
Relative density (water = 1): 0.98
vapor_pressure
Vapor pressure, Pa at 20 u00b0C:
logp
8.8
stability/shelf_life
Stable under recommended storage conditions.
autoignition_temperature
380 u00b0C
decomposition
When heated to decomposition it emits acrid smoke and irritating vapors.
viscosity
500 cST at 0 u00b0C; 102 cST at 20 u00b0C; 37 cSt at 37.8 u00b0C; 6 cSt at 100 u00b0C
refractive_index
Index of refraction: 1.486 at 20 u00b0C/D
collision_cross_section
313.44 u00e2u201eu00abu00c2u00b2 [2M+Na]+
kovats_retention_index
2649
other_experimental_properties
... Resistance to migration from polymers, low temperature flexibility ... compatibility with polar polymers and additives over a wide range of compositions. /Phthalate esters/
GHS / SDS Safety Danger
Health Hazard
  • H351: Suspected of causing cancer [Warning Carcinogenicity]
  • Reported as not meeting GHS hazard criteria by 895 of 901 companies (only 0.7% companies provided GHS information). For more detailed information, please visit ECHA C&L website.
  • H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]
  • Not Classified
  • H360: May damage fertility or the unborn child [Danger Reproductive toxicity]
Chemical Identity
CAS Number28553-12-0
IUPAC Namebis(7-methyloctyl) benzene-1,2-dicarboxylate
InChI KeyHBGGXOJOCNVPFY-UHFFFAOYSA-N
PubChem CID 590836
INCI NameDIISONONYL PHTHALATE
Synonyms & Trade Names
DIISONONYL PHTHALATE Diisononylphthalate DINP bis(7-methyloctyl) benzene-1,2-dicarboxylate Enj 2065 Sansocizer DINP Vestinol NN Jayflex DINP Vestinol 9 Phthalisocizer DINP 1,2-Benzenedicarboxylic acid, diisononyl ester Baylectrol 4200 di-isononyl phthalate Witamol 150 Phthalic acid, diisononyl ester
Full Description

Diisononyl Phthalate (DINP) is a phthalate ester plasticizer that provides lubrication and plasticization properties in industrial formulations. This chemical additive is primarily utilized in the plastics and polymers industry to enhance flexibility and processability of polymer systems. With a molecular weight of 418.6 g/mol and density of 0.98, DINP offers reliable performance characteristics for specialty additive applications.