L254

D-Lactose monohydrate

ACS reagent

• Synonym(s): β-D-Gal-(1→4)-D-Glc, 4-O-β-D-Galactopyranosyl-D-glucose, Milk sugar
• Empirical Formula (Hill Notation): C₁₂H₂₂O₁₁ · H₂O
• CAS Number: 64044-51-5
• Molecular Weight: 360.31
• Beilstein/REAXYS Number: 3768231
• EC Number: 200-559-2
• MDL number: MFCD00166994
• UNSPSC Code: 12352100
• PubChem Substance ID: 329817398
• NACRES: NA.21

Properties

• grade: ACS reagent
• Quality Level: 200
• form: powder
• optical activity: [α]22/D +52.4°, c = 4.5 in H₂O
• impurities: dextrose, passes test; sucrose, passes test; ≤0.005% insolubles; 4.0-6.0% water
• ign. residue: ≤0.03%
• mp: 219 °C (dec.)
• cation traces: Fe: ≤5 ppm; heavy metals: ≤5 ppm (by ICP)
• functional group: aldehyde; ether
• SMILES string: O.OC[C@@H](O)[C@@H](O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)[C@H](O)[C@@H](O)C=O
• InChI: 1S/C12H22O11.H2O/c13-1-4(16)7(18)11(5(17)2-14)23-12-10(21)9(20)8(19)6(3-15)22-12;/h1,4-12,14-21H,2-3H2;1H2/t4-,5+,6+,7+,8-,9-,10+,11+,12-;/m0./s1
• InChI key: HBDJFVFTHLOSDW-XBLONOLSSA-N

Description

Application

• Synthesis of lactose-based surfactants: Research by Enayati, Gong, and Abbaspourrad demonstrated the use of d-Lactose monohydrate in the synthesis of lactose lauryl ester, employing aluminosilicate zeolite as a catalyst. This study presents a method for producing non-ionic surfactants, highlighting d-Lactose monohydrate′s role in industrial and pharmaceutical applications (Enayati et al., 2019).

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)