Bis-tris propane

Bis-tris propane
Names
	Preferred IUPAC name 2,2′-[Propane-1,3-diylbis(azanediyl)]bis[2-(hydroxymethyl)propane-1,3-diol]
	Other names 2,2'-(Propane-1,3-diyldiimino)bis[2-(hydroxymethyl)propane-1,3-diol]
Identifiers
CAS Number	64431-96-5 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	1786109
ChEBI	CHEBI:40947 ;
ChEMBL	ChEMBL63859 ;
ChemSpider	111383 ;
DrugBank	DB02676 ;
ECHA InfoCard	100.058.981
EC Number	264-899-3;
Gmelin Reference	1734507
MeSH	1,3-bis(tris(hydroxymethyl)methylamino)propane
PubChem CID	125132;
UNII	N5YD0CS4DO ;
CompTox Dashboard (EPA)	DTXSID30894116 ;
	InChI InChI=1S/C11H26N2O6/c14-4-10(5-15,6-16)12-2-1-3-13-11(7-17,8-18)9-19/h12-19H,1-9H2 Key: HHKZCCWKTZRCCL-UHFFFAOYSA-N ;
	SMILES OCC(CO)(CO)NCCCNC(CO)(CO)CO;
Properties
Chemical formula	C11H26N2O6
Molar mass	282.337 g·mol−1
Appearance	White crystals
Melting point	164 to 165 °C (327 to 329 °F; 437 to 438 K)
log P	−2.794
Related compounds
Related compounds	Daminozide; Octopine; Nopaline; Pantetheine;
	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

Bis-tris propane, or 1,3-bis(tris(hydroxymethyl)methylamino)propane, also known as BTP, is a chemical substance that is used in buffer solutions. It is a white to off-white crystalline powder that is soluble in water. It has a wide buffering range, from 6 to 9.5 due to its two pK_a values which are close in value. This buffer is primarily used in biochemistry and molecular biology.