Chemical Properties of Lactose (CAS 63-42-3)

Lactose

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/t3-,4-,5+,6+,7-,8-,9-,10-,11-,12+/m0/s1
InChI Key
GUBGYTABKSRVRQ-SDWOOCBUSA-N
Formula
C12H22O11
SMILES
OCC1OC(OC2C(CO)OC(O)C(O)C2O)C(O)C(O)C1O
Molecular Weight1
342.30
CAS
63-42-3
Other Names
  • (+)-Lactose
  • 4-(«beta»-D-Galactosido)-D-glucose
  • 4-O-.beta.-D-galactopyranosyl-D-glucose
  • AHL
  • Aletobiose
  • D-(+)-lactose
  • D-Glucose, 4-O-«beta»-D-galactopyranosyl-
  • D-Lactose
  • D-glucose, 4-(beta-d-galactosido)-
  • Fast-Flo Lactose
  • Fast-flo
  • Galactinum
  • Lactin
  • Lactin (carbohydrate)
  • Lactobiose
  • Lactose Fast-flo
  • Milk sugar
  • Osmolactan
  • Pharmatose 21
  • Saccharum lactin
  • Tablettose
  • Zeparox EP
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Physical Properties

Property Value Unit Source
ΔfusH° 68.92 kJ/mol Joback Calculated Property
log10WS [-0.24; -0.24]   Show Hide
log10WS -0.24 Aq. Solubility Prediction
log10WS -0.24 Estimated Solubility
logPoct/wat -5.397 Crippen Calculated Property
McVol 222.790 ml/mol McGowan Calculated Property
Tfus 469.88 K Relay (1.0) Calculated Property

Cheméo can also estimate Normal Boiling Point Temperature, Critical Temperature, Critical Pressure, Critical Volume, Enthalpy of formation at standard conditions, Enthalpy of vaporization at standard conditions, Standard Gibbs free energy of formation, Acentric Factor, Ionization energy for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,solid 417.60 J/mol×K 300.00 NIST

Correlations

Property Value Unit Temperature (K) Source
Cp,gas [352.07; 868.75] J/mol×K [273.00; 1000.00] Joback Predicted correlation Show Hide
EquationY = A + B·T + C·T² + D·T³ + E·T⁴
Y is Cp,gas in J/mol×K, T in K
Coefficient A1.07520e+01
Coefficient B1.37880e+00
Coefficient C-4.52200e-04
Coefficient D-6.86000e-08
Coefficient E0.00000e+00
Temperature range, min.273.00
Temperature range, max.1000.00
Cp,gas 352.07 J/mol×K 273.00 Calculated Property
Cp,gas 438.91 J/mol×K 353.78 Calculated Property
Cp,gas 518.90 J/mol×K 434.56 Calculated Property
Cp,gas 591.82 J/mol×K 515.33 Calculated Property
Cp,gas 657.45 J/mol×K 596.11 Calculated Property
Cp,gas 715.58 J/mol×K 676.89 Calculated Property
Cp,gas 766.00 J/mol×K 757.67 Calculated Property
Cp,gas 808.47 J/mol×K 838.44 Calculated Property
Cp,gas 842.80 J/mol×K 919.22 Calculated Property
Cp,gas 868.75 J/mol×K 1000.00 Calculated Property
Property Value Unit Temperature (K) Source
η [2.0238363e-08; 1.7651509e-11] Pa×s [767.77; 1248.87] Joback Predicted correlation Show Hide
EquationY = exp(A + B/T + C·ln(T) + D·T^E)
Y is η in Pa×s, T in K
Coefficient A-3.60023e+01
Coefficient B1.40399e+04
Coefficient C0.00000e+00
Coefficient D0.00000e+00
Coefficient E0.00000e+00
CommentLiquid phase. Joback/Reid (1987), valid from Tf to 0.7·Tc.
Temperature range, min.767.77
Temperature range, max.1248.87
η 2.0238363e-08 Pa×s 767.77 Calculated Property
η 6.1549854e-09 Pa×s 821.23 Calculated Property
η 2.1650324e-09 Pa×s 874.68 Calculated Property
η 8.5895437e-10 Pa×s 928.14 Calculated Property
η 3.7688150e-10 Pa×s 981.59 Calculated Property
η 1.8005011e-10 Pa×s 1035.05 Calculated Property
η 9.2489300e-11 Pa×s 1088.50 Calculated Property
η 5.0567817e-11 Pa×s 1141.96 Calculated Property
η 2.9181533e-11 Pa×s 1195.41 Calculated Property
η 1.7651509e-11 Pa×s 1248.87 Calculated Property

Similar Compounds

Maltose. ALPHA-D-(+)-LACTOSE. Cellobiose. D-cellobiose. «beta»-D-Glucopyranose, 4-O-«beta»-D-galactopyranosyl-. melibiose. D-glucose, 4,6-o-ethylidene. cyclohexapentylose. «beta»-D-Glucopyranose. «beta»-D-Glucopyranose. D-glucose anhydrous. «alpha»-D-Glucose. «alpha»-d-Galactopyranose. «alpha»-D-Glucopyranose. Hexopyranose.

Find more compounds similar to Lactose.

Mixtures

Sources

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