Lactulose

CAS	4618-18-2
Structure
Synonyms	Caloryl
IUPAC Name	(2S,3R,4S,5R,6R)-2-[(2R,3S,4S,5R)-4,5-Dihydroxy-2,5-bis(hydroxymethyl)oxolan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol
Molecular Weight	342.3
Molecular Formula	C12H22O11
Canonical SMILES	C(C1C(C(C(C(O1)OC2C(OC(C2O)(CO)O)CO)O)O)O)O
InChI	InChI=1S/C12H22O11/c13-1-4-6(16)7(17)8(18)11(21-4)22-9-5(2-14)23-12(20,3-15)10(9)19/h4-11,13-20H,1-3H2/t4-,5-,6+,7+,8-,9-,10+,11+,12-/m1/s1
InChI Key	JCQLYHFGKNRPGE-FCVZTGTOSA-N
Boiling Point	397.76 °C
Melting Point	169 °C
Purity	99%
Density	1.32 g/cm³
Solubility	Freely soluble in water, sparingly soluble in methanol, practically insoluble in toluene
Appearance	White to almost white powder
Storage	Refrigerator
Exact Mass	342.11621151
Isomeric SMILES	C([C@@H]1[C@@H]([C@@H]([C@H]([C@@H](O1)O[C@@H]2[C@H](O[C@@]([C@H]2O)(CO)O)CO)O)O)O)O
Monoisotopic Mass	342.11621151
Physical State	Powder
Refractive Index	1.45-1.47
Topological Polar Surface Area	190 Ų