D-(+)-Galactose D-(+)-Galactose

Structural formula

• Numbering system
• Physical property data
• Toxicological data
• Ecological data
• Molecular structure data
• Computing chemical data
• More
  • Properties and Stability
  • Storage method
  • Synthesis method
  • Purpose

Numbering system

CAS number:59-23-4

MDL number:MFCD00151230

EINECS number:200-416-4

RTECS number:LW5490000

BRN number:1724619

PubChem number:24895021

Physical property data

1. Properties: White crystal or powder. Odorless. Slightly sweet.

2. Density (g/mL, 25/4℃): Undetermined

3. Relative vapor density (g/mL, air=1): Undetermined

4. Melting point (ºC): 167℃, 118~120℃ (monohydrate)

5. Boiling point (ºC, normal pressure): Undetermined

6 . Boiling point (ºC, 5.2kPa): Not determined

7. Refractive index: Not determined

8. Flash point (ºC): Not determined

9 .     Specific rotation (º): α-D-galactose+150.7°→80.2° (water), β-D-galactose+52.8°→80.2° (water)

10. Autoignition point Or ignition temperature (ºC): not determined

11. Vapor pressure (kPa, 25ºC): not determined

12. Saturated vapor pressure (kPa, 60ºC): not determined

13. Heat of combustion (KJ/mol): Undetermined

14. Critical temperature (ºC): Undetermined

15. Critical pressure (KPa): Undetermined

16. Log value of oil-water (octanol/water) partition coefficient: Undetermined

17. Explosion upper limit (%, V/V): Undetermined

18. Lower explosion limit (%, V/V): Undetermined

19. Solubility: Easily soluble in water, soluble in pyridine, slightly soluble in ethanol and glycerin.

Toxicological data

1. Reproductive toxicity: Oral TDLo of female rats: 240mg/kg, conception takes 11-22 days; Oral TDLo of female rats: 188mg/kg, conception takes 8-10 days; Oral TDLo of female rats: 40mg/kg, Conception occurs after 1-22 days; oral TDLo for female rats: 475mg/kg, conception occurs after 3-22 days; TDLo for female rats orally: 1000mg/kg, conception occurs after 3-22 days; TCLo for female mice orally: 1260mg/kg , conception occurs after 1-21 days; oral TCLo for female mice: 630mg/kg, conception occurs after 1-2 days; oral TCLo for female mice: 16500mg/kg, conception occurs after 8-12 days; TDLo for female mice orally: 840mg/ kg, mated 14 days ago

Ecological data

None yet

Molecular structure data

1. Molar refractive index: 37.25

2. Molar volume (cm³/mol): 104.0

3. Isotonic specific volume (90.2K): 312.7

4. Surface tension (dyne/cm): 81.7

5. Polarizability (10^-24cm³): 14.76

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): -2.6

2. Number of hydrogen bond donors: 5

3. Number of hydrogen bond acceptors: 6

4. Number of rotatable chemical bonds: 1

5. Number of tautomers:

6. Topological molecular polar surface area (TPSA): 110

7. Number of heavy atoms: 12

8. Surface charge: 0

9. Complexity: 151

10. Isotopic atoms Quantity: 0

11. Determine the number of atomic stereocenters: 4

12. Uncertain number of atomic stereocenters: 0

13. Determine chemical bond positions Number of stereocenters: 0

14. Number of uncertain chemical bond stereocenters: 0

15. Number of covalent bond units: 1

Properties and stability

Stable under normal temperature and pressure

Storage method

This product should be kept sealed and dry. ​​​

Synthesis method

1. Lactose can be hydrolyzed into D(+)-galactose in acidic medium, then dissolved in water, and then crystallized with ethanol to obtain pure product.

Purpose

1. Liver function test. Biological culture. Biochemical research. Organic Synthesis.