Tween 20

Catalog	DGS9005645
CAS	9005-64-5
Synonyms	Polysorbate 20; Polyethylene glycol sorbitan monolaurate
IUPAC Name	2-[2-[3,4-bis(2-hydroxyethoxy)oxolan-2-yl]-2-(2-hydroxyethoxy)ethoxy]ethyl dodecanoate
Molecular Weight	1228
Molecular Formula	C58H114O26
InChI	InChI=1S/C26H50O10/c1-2-3-4-5-6-7-8-9-10-11-24(30)34-19-18-31-20-22(32-15-12-27)26-25(35-17-14-29)23(21-36-26)33-16-13-28/h22-23,25-29H,2-21H2,1H3
InChI Key	HMFKFHLTUCJZJO-UHFFFAOYSA-N
Boiling Point	>100 °C
Melting Point	22 °C
Flash Point	275 °C
Density	1.11 g/mL at 20 °C
Solubility	Soluble in ethanol (50 mg/mL), DMSO (50 mg/mL)
Appearance	Viscous amber liquid
Cloud Point	76 ºC
Complexity	507
Critical Micelle Concentration	~ 0.06 mM (25ºC)
EC Number	500-018-3
Exact Mass	522.34039779
Formal Charge	0
Heavy Atom Count	36
Hydrogen Bond Acceptor Count	10
Hydrogen Bond Donor Count	3
Isomeric SMILES	CCCCCCCCCCCC(=O)OCCOCC(C1C(C(CO1)OCCO)OCCO)OCCO
Monoisotopic Mass	522.34039779
pH	6-8 (50 g/L in H₂O, 20 °C)
Rotatable Bond Count	26
Storage Conditions	Room temperature
Topological Polar Surface Area	133 Ų
XLogP3-AA	2.5