Tris(2,3-dibromopropyl) phosphate

Tris(2,3-dibromopropyl) phosphate ("tris") is a chemical once widely used as a flame retardant in plastics and textiles.

Tris(2,3-dibromopropyl) phosphate

Names
Preferred IUPAC name Tris(2,3-dibromopropyl) phosphate
Other names Fyrol HB 32 Tris
Identifiers
CAS Number	126-72-7 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:82282
ChemSpider	29089
ECHA InfoCard	100.004.364
PubChem CID	31356
UNII	X7O89N7ZY0 Y
CompTox Dashboard (EPA)	DTXSID5021413
InChI InChI=1S/C9H15Br6O4P/c10-1-7(13)4-17-20(16,18-5-8(14)2-11)19-6-9(15)3-12/h7-9H,1-6H2
SMILES BrCC(Br)COP(=O)(OCC(Br)CBr)OCC(Br)CBr
Properties
Chemical formula	C9H15Br6O4P
Molar mass	697.613 g·mol−1
Appearance	Viscous pale yellow liquid
Density	2.24 g/cm3[1]
Solubility in water	Insoluble[1]
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Carcinogenic, use restricted
Flash point	> 110 °C (230 °F)[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Safety and regulation

Tris is mutagenic^[2] and listed as an IARC Group 2A carcinogen.^[3] It is one of the chemicals covered by the Rotterdam Convention. In the United States, the Consumer Product Safety Commission banned the sale of children's garments containing tris in 1977.^[4] This regulatory change came about as a result of the research of Bruce Ames and Arlene Blum.^[5]

See also

• Tris(1,3-dichloro-2-propyl)phosphate
• Tris(2-chloroethyl) phosphate