Dipentaerythritol

Dipentaerythritol is an organic compound with the formula O[CH₂C(CH₂OH)₃]₂. The molecular structure can be described as the ether derivative of pentaerythritol. It is therefore a polyol, which are useful in the production of alkyd resins. The compound is a by product in the production of pentaerythritol but also can be prepared intentionally from the latter:^[1]

2 C(CH₂OH)₄ → O[CH₂C(CH₂OH)₃]₂ + H₂O

Dipentaerythritol

Names
IUPAC name 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol
Other names Dipentalide
Identifiers
CAS Number	126-58-9
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL3185131
ChemSpider	29085
ECHA InfoCard	100.004.359
EC Number	204-794-1
PubChem CID	31352
UNII	6699UJQ478
CompTox Dashboard (EPA)	DTXSID3027039
InChI InChI=1S/C10H22O7/c11-1-9(2-12,3-13)7-17-8-10(4-14,5-15)6-16/h11-16H,1-8H2 Key: TXBCBTDQIULDIA-UHFFFAOYSA-N
SMILES C(C(CO)(CO)COCC(CO)(CO)CO)O
Properties
Chemical formula	C10H22O7
Molar mass	254.279 g·mol−1
Appearance	white solid
Density	1.365 g/cm3
Melting point	222 °C (432 °F; 495 K)
Solubility in water	0.22 g/100 mL
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Several thousand tons are produced annually.

Further condensations are possible, yielding tripentaerythritol, etc.

Safety

The LD₅₀ is greater than 2000 mg/kg (rat, oral).

See also

• Trimethylolethane
• Trimethylolpropane