2,2,4,4-Tetramethyl-1,3-cyclobutanediol

2,2,4,4-Tetramethyl-1,3-cyclobutanediol
	cis- (left) and trans-2,2,4,4-Tetramethyl-1,3-cyclobutanediol (right)
Names
	Preferred IUPAC name 2,2,4,4-Tetramethylcyclobutane-1,3-diol
	Other names 1,1,3,3-Tetramethyl-2,4-cyclobutanediol
Identifiers
CAS Number	3010-96-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	68858 ;
ECHA InfoCard	100.019.219
PubChem CID	76382;
UNII	9T56625HW3 ;
CompTox Dashboard (EPA)	DTXSID9044908 ;
	InChI InChI=1S/C8H16O2/c1-7(2)5(9)8(3,4)6(7)10/h5-6,9-10H,1-4H3 Key: FQXGHZNSUOHCLO-UHFFFAOYSA-N ; InChI=1/C8H16O2/c1-7(2)5(9)8(3,4)6(7)10/h5-6,9-10H,1-4H3 Key: FQXGHZNSUOHCLO-UHFFFAOYAA;
	SMILES OC1C(C)(C)C(O)C1(C)C;
Properties
Chemical formula	C8H16O2
Molar mass	144.214 g·mol−1
Appearance	Crystalline white solid (powder)
Melting point	126 to 134 °C (259 to 273 °F; 399 to 407 K)
Boiling point	210 to 215 °C (410 to 419 °F; 483 to 488 K)
Hazards
Flash point	51 °C (124 °F; 324 K)
Safety data sheet (SDS)	[1]
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

2,2,4,4-Tetramethyl-1,3-cyclobutanediol (CBDO) is an aliphatic diol. This diol is produced as a mixture of cis- and trans-isomers, depending on the relative stereochemistry of the hydroxyl groups. It is used as a monomer for the synthesis of polymeric materials, usually as an alternative to bisphenol A (BPA). CBDO is used in the production of tritan copolyester which is used as a BPA-free replacement for polycarbonate.