β-Lactose

CAS Registry Number®

5965-66-2

CAS Name

β-Lactose

Molecular Formula

C12H22O11

Molecular Mass

342.30

Cite this Page

β-Lactose.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   https://commonchemistry.cas.org/detail?cas_rn=5965-66-2 (retrieved 2025-04-14) (CAS RN: 5965-66-2).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    254 °C

  • Density (2)

    0.63 g/cm³

Source(s)

Other Names and Identifiers

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+/m1/s1

InChIKey

InChIKey=GUBGYTABKSRVRQ-DCSYEGIMSA-N

SMILES

O([C@@H]1[C@@H](CO)O[C@@H](O)[C@H](O)[C@H]1O)[C@@H]2O[C@H](CO)[C@H](O)[C@H](O)[C@H]2O

Canonical SMILES

OCC1OC(OC2C(O)C(O)C(O)OC2CO)C(O)C(O)C1O

Other Names for this Substance

  • β-D-Glucopyranose, 4-O-β-D-galactopyranosyl-
  • Lactose, β-
  • 4-O-β-D-Galactopyranosyl-β-D-glucopyranose
  • β-Lactose
  • β-D-Lactose

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