CAS 63-42-3: (+)-Lactose

Description: (+)-Lactose, also known as beta-lactose, is a disaccharide sugar composed of one molecule of glucose and one molecule of galactose linked by a β(1→4) glycosidic bond. It is commonly found in milk and dairy products, serving as a primary carbohydrate source in these foods. This compound is a white, crystalline solid that is soluble in water, exhibiting a slightly sweet taste. Lactose is classified as a reducing sugar due to its free aldehyde group, which can participate in redox reactions. It is important in various biochemical processes, including energy metabolism in certain organisms. In humans, lactose is broken down by the enzyme lactase into its constituent monosaccharides for absorption; however, some individuals may experience lactose intolerance due to insufficient lactase production. Additionally, lactose has applications in the food industry, pharmaceuticals, and as a prebiotic, promoting the growth of beneficial gut bacteria. Its molecular formula is C12H22O11, and it has a specific rotation of +52.5°, indicating its optical activity.

Formula: C₁₂H₂₂O₁₁

InChI: InChI=1S/C12H22O11/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/t4-,5+,6+,7+,8-,9-,10+,11+,12-/m0/s1

InChI key: InChIKey=DKXNBNKWCZZMJT-JVCRWLNRSA-N

SMILES: O=CC(O)C(O)C(OC1OC(CO)C(O)C(O)C1O)C(O)CO

Synonyms:

• (+)-Lactose
• (2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-[(2R,3S,4R,5R,6R)-4,5,6-trihydroxy-2-(hydroxymethyl)tetrahydropyran-3-yl]oxy-tetrahydropyran-3,4,5-triol
• 4-(beta-D-Galactosido)-D-glucose
• 4-O-beta-D-Galactopyranosyl-D-glucose
• 4-O-beta-D-galactopyranosyl-D-glucopyranose
• 4-O-beta-D-galactopyranosyl-beta-D-glucopyranose
• 4-O-β-<span class="text-smallcaps">D</smallcap>-Galactopyranosyl-<smallcap>D</span>-glucose
• 4-O-β-D-Galactopyranosyl-D-glucose
• <span class="text-smallcaps">D</smallcap>-Glucose, 4-O-β-<smallcap>D</span>-galactopyranosyl-
• <span class="text-smallcaps">D</span>-(+)-Lactose
• AHL
• Ai3-08876
• Aletobiose
• America Grand Lactose
• Brn 0093796
• D-Glucose, 4-O-B-D-Galactopyranosyl-
• D-Glucose, 4-O-beta-D-galactopyranosyl-
• DCl 11
• Dairylac 80
• Dcl 15
• Dilactose
• DuraLacH
• Fast-flo
• Fast-flo Lactose
• FlowLac
• Flowlac 100
• Galactinum
• GranuLac
• Granulac 140
• Granulac 140M
• Granulac 70
• Hilmar 5030
• Hilmar Extra Fine
• Hilmar Fine Graind
• Inhalac 250
• Inhalac 70
• Lactin
• Lactin (carbohydrate)
• Lactobiose
• Lactohale 100
• Lactohale 200
• Lactohale 300
• Lactopure Refined Powder
• Lactosa
• Lactose Anhydrous
• Lactose DCL 11
• Lactose DCL 21
• Lactose Edible 90
• Lactose Fast-flo
• Lactose Nf, Anhydrous
• Lactose anhydride
• Le-Pro Lac 451
• Leprino 100
• Milk sugar
• Nonpareil 107
• Osmolactan
• Pharmatosa DCL 21
• Pharmatose 21
• Pharmatose 325M
• Pharmatose 450M
• Pharmatose DCL 15
• PrenoLakt
• Prismalac
• Respitose MC 001
• Respitose ML 001
• Respitose ML 003
• Respitose ML 006
• Respitose SV 001
• Respitose SV 003
• Respitose SV 010
• Saccharum lactin
• Sachelac
• Sorbalac 400
• Sorbolac 400
• Spherolac
• Super-Tab
• SuperTab 11SD
• SuperTab 21AN
• Tablettose
• Tablettose 100
• Tablettose 70
• Tablettose 80
• Variolac 960
• Zeparox EP

D-(+)-Lactose Monohydrate

CAS: 63-42-364044-51-5

• Formula: C₁₂H₂₂O₁₁·H₂O
• Purity: >98.0%(HPLC)
• Color and Shape: White powder to crystal
• Molecular weight: 360.32

LACTOSE (ANHYDROUS) CRS

CAS: 63-42-3

• Formula: C₁₂H₂₂O₁₁
• Molecular weight: 342.2965

Anhydrous Lactose (A Mixture of α and β anomers)

CAS: 63-42-3

Lactose and lactose syrup, containing by weight 99% or more lactose, expressed as anhydrous lactose, …

• Formula: C₁₂H₂₂O₁₁
• Color and Shape: White Off-White Powder
• Molecular weight: 342.11621

Lactose

CAS: 63-42-3

Lactose is a disaccharide derived from galactose and glucose that is found in milk.

• Formula: C₁₂H₂₂O₁₁
• Purity: 99.63%
• Color and Shape: White Crystals Or Powder
• Molecular weight: 342.3

4-O-β-D-Galactopyranosyl-D-glucose

CAS: 63-42-3

• Formula: C₁₂H₂₂O₁₁
• Purity: 98%
• Color and Shape: Solid
• Molecular weight: 342.29648000000003

Lactose

CAS: 63-42-3

• Purity: ≥98%
• Molecular weight: 342.3g/mol

Lactose (Mixture of α and β Isomers)

CAS: 63-42-3

• Formula: C₁₂H₂₂O₁₁
• Color and Shape: White To Off-White Solid
• Molecular weight: 342.30

Lactose, anhydrous

CAS: 63-42-3

• Formula: C₁₂H₂₂O₁₁
• Purity: ≥ 99.0%
• Color and Shape: White to off-white powder
• Molecular weight: 342.30

Lactose

CAS: 63-42-3

• Purity: 98%
• Molecular weight: 342.3g/mol

D-Lactose 1000 µg/mL in Water

CAS: 63-42-3

• Formula: C₁₂H₂₂O₁₁
• Color and Shape: Single Solution
• Molecular weight: 342.30

α-D-Lactose, monohydrate, 99.5+%

CAS: 5989-81-1 63-42-3

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …

• Formula: C₁₂H₂₄O₁₂
• Purity: 99.5+%
• Color and Shape: Crystalline powder, White to almost white
• Molecular weight: 360.31

D-Lactose

CAS: 63-42-3

• Formula: C₁₂H₂₂O₁₁
• Color and Shape: Neat
• Molecular weight: 342.30

Lactose, anhydrous, Ph. Eur., USP grade

CAS: 63-42-3

• Formula: C₁₂H₂₂O₁₁
• Purity: ≥ 99.5% (alpha + beta)
• Color and Shape: White or almost white crystalline powder
• Molecular weight: 342.30

Human Chorionic Gonadotrophin RS

CAS: 63-42-39002-61-3

• Color and Shape: White

Anhydrous Lactose for Identification RS

CAS: 63-42-3

• Color and Shape: White Solid Crystals Or Powder

D-Lactose Anhydrous

CAS: 63-42-3

• Formula: C₁₂H₂₂O₁₁
• Color and Shape: Neat
• Molecular weight: 342.30

Lactose - anhydrous

CAS: 63-42-3

Anhydrous lactose is an excipient, filler, diluent, and bulking agent in a wide variety of …

• Formula: C₁₂H₂₂O₁₁
• Purity: Min. 98 Area-%
• Color and Shape: Powder
• Molecular weight: 342.3 g/mol

[UL-13C6gal]Lactose

CAS: 63-42-364044-51-5

Applications Labelled Lactose (monohydrate, L114000), which is used in the synthesis of casing for various …

• Formula: C₆₁₃C₆H₂₂O₁₁
• Color and Shape: White Powder
• Molecular weight: 348.25