64044-51-5

Basic information

• Product Name: D-Lactose monohydrate
• Synonyms: Lactose, D(+)-, Monohydrate;LACTOSE extrapure AR;β-D-Gal-(1-4)-D-Glc, 4-O-β-D-Galactopyranosyl-D-glucose, Lactosum monohydricum, Milk sugar;β-D-Gal-(1-4)-D-Glc, 4-O-β-D-Galactopyranosyl-D-glucose, Milk sugar;Lactose, Monohydrate, Powder, Reagent;^a-D-Lactose monohydrate, ACS;alpha-D-Lactose monohydrate, ACS;D-Lactose monohydrate,β-D-Gal-(1→4)-D-Glc, 4-O-β-D-Galactopyranosyl-D-glucose, Lactosum monohydricum, Milk sugar
• CAS NO: 64044-51-5
• Molecular Formula: C12H24O12
• Molecular Weight: 360.31
• EINECS: 200-559-2
• Product Categories: Oligosaccharides;medicine excipents
• Mol File: 64044-51-5.mol
• Article Data: 0

Chemical Properties

• Melting Point: ~215 °C (dec.)
• Boiling Point: 841.4 °C at 760 mmHg
• Flash Point: 462.7 °C
• Appearance: White/Crystalline
• Density: 1.525
• Vapor Pressure: 0mmHg at 25°C
• Refractive Index: 1.652
• Storage Temp.: 2-8°C
• Solubility: H2O: 0.1 g/mL, clear, colorless
• Water Solubility: Soluble in water (warm) (0.1 g/mL), and ethanol (very slightly soluble). Insoluble in chloroform, and ether.
• Stability: Stable. Incompatible with strong oxidizing agents.
• Merck: 14,5343
• BRN: 3768231
• CAS DataBase Reference: D-Lactose monohydrate(CAS DataBase Reference)
• NIST Chemistry Reference: D-Lactose monohydrate(64044-51-5)
• EPA Substance Registry System: D-Lactose monohydrate(64044-51-5)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36-24/25
• WGK Germany: 3
• RTECS: OD9625000
• F: 3
• TSCA: Yes
• Hazardous Substances Data: 64044-51-5(Hazardous Substances Data)

Usage

Uses

Different sources of media describe the Uses of 64044-51-5 differently. You can refer to the following data:
1. mosquito-repellent
2. [a]22 +52.4°, c = 4.5 in H2O
3. D-Lactose monohydrate can be used as chromatographic adsorbent.

General Description

Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Biochem/physiol Actions

Lactose is a dissacharide formed by the condensation of one galactose and one glucose molecule. Lactose is the major sugar in the milk of most species, typically present between 2-8%. The enzyme lactase hydrolyzes lactose to its constituent monosaccharides. In neonates, glucose released via the action of lactase is a major energy source.

InChI:InChI=1/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