Chemical Properties of ALPHA-D-(+)-LACTOSE (CAS 14641-93-1)

ALPHA-D-(+)-LACTOSE

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InChI
InChI=1S/C12H22O11/c13-1-3-5(15)6(16)9(19)12(22-3)23-10-4(2-14)21-11(20)8(18)7(10)17/h3-20H,1-2H2
InChI Key
GUBGYTABKSRVRQ-UHFFFAOYSA-N
Formula
C12H22O11
SMILES
OCC1OC(OC2C(CO)OC(O)C(O)C2O)C(O)C(O)C1O
Molecular Weight1
342.30
CAS
14641-93-1
Other Names
  • 4-O-«beta»-D-galactopyranosyl-«alpha»-D-glucopyranose
  • «alpha»-lactose
Sources

Physical Properties

Property Value Unit Source
Δf -1334.42 kJ/mol Joback Calculated Property
Δfgas -1959.15 kJ/mol Joback Calculated Property
Δfus 68.92 kJ/mol Joback Calculated Property
Δvap 185.55 kJ/mol Joback Calculated Property
logPoct/wat -5.40 Crippen Calculated Property
Pc 4311.22 kPa Joback Calculated Property
Tboil 1289.46 K Joback Calculated Property
Tc 1783.82 K Joback Calculated Property
Tfus 767.77 K Joback Calculated Property
Vc 0.78 m3/kg-mol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas 889.71 J/mol×K 1289.46 Joback Calculated Property
η 0.00 Pa×s 1289.46 Joback Calculated Property
ΔfusH 75.20 kJ/mol 496.2 NIST

Molecular Descriptors

Joback and Reid Groups
-O- (nonring) 1
-O- (ring) 2
>CH- (ring) 10
-CH2- 2
-OH (alcohol) 8

Similar Compounds

D-Glucose, 4-O-«alpha»-D-glucopyranosyl-, hydrate (1:1). «alpha»-D-Glucopyranose, 4-O-«beta»-D-galactopyranosyl-, hydrate (1:1). Cellobiose. «beta»-D-Glucopyranose, 4-O-«beta»-D-galactopyranosyl-. D-cellobiose. Maltose. Lactose monohydrate. Lactose. .alpha.-Cyclodextrin. D-(+)-maltose. Alpha-d-melibiose, monohydrate. Maltotetraose, permethyl. Maltotriose, permethyl. D-glucose, 4,6-o-ethylidene. «beta»-D-Glucopyranoside, 1-(2-butyl), permethylated, # 2.

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