Dioctyl sebacate
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Names
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IUPAC name
Bis(2-ethylhexyl) decanedioate
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Systematic IUPAC name
[Heptane-3-yl-(-3-methane-1,1-diyl)-] decanedioate
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Other names
Di(2-ethylhexyl) sebacate, Proviplast 1988, dioctyl sebacate (archaic)
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Identifiers
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ChemSpider
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ECHA InfoCard
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100.004.145
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UNII
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InChI=1S/C26H50O4/c1-5-9-17-23(7-3)21-29-25(27)19-15-13-11-12-14-16-20-26(28)30-22-24(8-4)18-10-6-2/h23-24H,5-22H2,1-4H3 YKey: VJHINFRRDQUWOJ-UHFFFAOYSA-N YInChI=1/C26H50O4/c1-5-9-17-23(7-3)21-29-25(27)19-15-13-11-12-14-16-20-26(28)30-22-24(8-4)18-10-6-2/h23-24H,5-22H2,1-4H3 Key: VJHINFRRDQUWOJ-UHFFFAOYAA
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CCCCC(CC)COC(=O)CCCCCCCCC(=O)OCC(CC)CCCC
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Properties
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C26H50O4
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Molar mass
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426.682 g·mol−1
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Density
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0.9 of water
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Melting point
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−48 °C (−54 °F; 225 K)
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Boiling point
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256 °C (493 °F; 529 K) at 0.7 kPa
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none
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Vapor pressure
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0.000024 Pa at 37 °C
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Hazards
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Occupational safety and health (OHS/OSH):
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Main hazards
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reacts with oxidants
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Flash point
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210 °C (410 °F; 483 K) open cup
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Lethal dose or concentration (LD, LC):
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5 g/kg (rat, orally)
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound
Dioctyl sebacate (also di(2-ethylhexyl) sebacate, commonly abbreviated as DOS, DEHS, and BEHS) is an organic compound which is the diester of sebacic acid and 2-ethylhexanol.
It is an oily colorless liquid and is used as a plasticizer, including in the explosive C4.[1] It has also found use in Dot 5 brake fluid, in ester-based engine oils and additives, as seed particle for particle image velocimetry (PIV) and as a model compound that forms stable aerosols.
References
- ^ Handbook of Thermal Analysis and Calorimetry. Elsevier. 2018.