D-(+)-Galactose D-(+)-Galactose
Structural formula
| Business number | 01A7 |
|---|---|
| Molecular formula | C6H12O6 |
| Molecular weight | 180.16 |
| label |
Hydrolyzed lactose;, Lactoglucose, Dextrogalactose, Biochemical reagents |
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.
