Lactose

Base Information

• Chemical Name: Lactose
• CAS No.: 63-42-3
• Deprecated CAS: 1336-90-9,35396-14-6,73824-63-2,89466-76-2,200734-90-3,36570-80-6,1065027-17-9,396716-09-9
• Molecular Formula: C12H22O11
• Molecular Weight: 342.3
• Hs Code.: 17021100
• UNII: 3SY5LH9PMK
• Nikkaji Number: J353.435I
• Wikidata: Q76149967
• Mol file: 63-42-3.mol

Synonyms:4-O-beta-D-Galactopyranosyl-D-glucose;D-Glucose, 4-O-beta-D-galactopyranosyl-;Galactinum;Fast-flo Lactose;

Chemical Property of Lactose

Chemical Property:

• Appearance/Colour: white crystals or powder
• Vapor Pressure: 1.08E-20mmHg at 25°C
• Melting Point: 222.8 °C
• Refractive Index: 1.652
• Boiling Point: 667.9 °C at 760 mmHg
• PKA: 12.39±0.20(Predicted)
• Flash Point: 357.8 °C
• PSA: 197.37000
• Density: 1.76 g/cm³
• LogP: -5.55460
• Storage Temp.: 2-8°C
• Solubility.: Freely but slowly soluble in water, practically insoluble in ethanol (96 per cent).
• Water Solubility.: 5-10 g/100 mL at 20 ºC
• XLogP3: -5
• Hydrogen Bond Donor Count: 8
• Hydrogen Bond Acceptor Count: 11
• Rotatable Bond Count: 8
• Exact Mass: 342.11621151
• Heavy Atom Count: 23
• Complexity: 367

Purity/Quality:

99% ^*data from raw suppliers

Lactose, anhydrous ^*data from reagent suppliers

Safty Information:

• Safety Statements: 24/25

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Canonical SMILES: C(C1C(C(C(C(O1)OC(C(CO)O)C(C(C=O)O)O)O)O)O)O
• Isomeric SMILES: C([C@@H]1[C@@H]([C@@H]([C@H]([C@@H](O1)O[C@H]([C@@H](CO)O)[C@@H]([C@H](C=O)O)O)O)O)O)O
• Uses: A disaccharide sugar present in milk. Lactose is a disaccharide carbohydrate that occurs in mammalian milk except that of the whale and the hippopotamus. it is princi- pally obtained as a cows’ milk derivative. it is also termed milk sugar and it is a reducing sugar consisting of glucose and galactose. its most common commercial form is alpha-monohydrate, with the beta-anhydride form available to a lesser extent. all forms in solution will equilibrate to a beta:alpha ratio of 62.25:37.75 at 0°c. it is about one-sixth as sweet as sugar and is less soluble. it functions as a flow agent, humectant, crystallization control agent, and sweetener. it is used in baked goods for flavor, browning, and tenderizing and in dry mixes as an anticaking agent. D-Lactose is used for the culture of lactic acid metabolizing bacteria, lactic acid bacteria. D-Lactose is used to identify and characterized galectins.

Technology Process of Lactose

There total 8 articles about Lactose which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

meso-erythritol (909878-64-4,10030-58-7,188346-77-2,149-32-6) + L-Tartaric acid (87-69-4,138508-61-9) → (+)-proto-quercitol (488-73-3) + Sucrose (57-50-1) + D-(+)-lactose (63-42-3)

Guidance literature:

Reference yield:

acetic acid (64-19-7,77671-22-8) + 2′-fucosyllactose (41263-94-9) → L-Fucose (2438-80-4,478518-52-4) + D-(+)-lactose (63-42-3)

Guidance literature:

Reference yield:

hydrogenchloride (7647-01-0,15364-23-5) + 2′-fucosyllactose (41263-94-9) → L-Fucose (2438-80-4,478518-52-4) + D-(+)-lactose (63-42-3)

Guidance literature:

upstream raw materials:

β-D-glucose

(E)-3-Ureido-but-2-enoic acid ethyl ester

acetic acid

2′-fucosyllactose

Downstream raw materials:

2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1→4)-1,2,6-tri-O-benzoyl-β-D-glucopyranose

4-(4-(tert-butyl)phenyl)-3-(trifluoromethyl)-4H-1,2,4-triazole

carbon monoxide

hydrogen