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White, crystalline powder that reacts readily with organic acids. Pentaerythritol is used to make alkyd resins, rosin esters, and other compounds that are used in synthetic resins, adhesives, paints, and varnishes.

Synonyms and Related Terms

PE; tetramethylolmethane; monopentaerythritol; pentaresin; tetrakis(hydroxymethyl)methane; 2,2-bis-(hydroxymethyl)-1,3-propanediol

Chemical structure


Other Properties

Soluble in water, ethanol, glycerol, ethylene glycol, formamide.

Insoluble in acetone, benzene, carbon tetrachloride, ether, ligroin.

Composition C(CH2OH)4
CAS 115-77-5
Melting Point 262
Density 1.399
Molecular Weight mol. wt. = 136.15
Refractive Index 1.54-1.56
Boiling Point 276

Hazards and Safety

Combustible. Flash point = 4 C. Contact may cause irritation

Fisher Scientific: MSDS

Sources Checked for Data in Record

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7245
  • Guy Weismantel, Paint Handbook, McGraw-Hill Book Company, New York, 1981

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