4-Pyridoxic Acid 4-Pyridoxic Acid
Structural formula
| Business number | 01T6 |
|---|---|
| Molecular formula | C8H9NO4 |
| Molecular weight | 183.16 |
| label |
2-Methyl-3-hydroxy-4-carboxy-3-hydroxymethylpyridine, 3-hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridinecarboxylic acid, 2-Methyl-3-hydroxy-4-carboxy-5-hydroxymethylpyridine, 3-Hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridinecarboxylic acid |
Numbering system
CAS number:82-82-6
MDL number:MFCD00006334
EINECS number:201-440-8
RTECS number:NS1800000
BRN number:None
PubChem number:24899046
Physical property data
1. Character: wedge-shaped crystal
2. Density (g/mL,25/4℃)：1.72
3. Relative vapor density (g/mL ,Air=1): Unsure
4. Melting point (ºC): 247 ～248
5. Boiling point (ºC,Normal pressure): Unsure
6. Boiling point (ºC,5.2kPa): Unsure
7. Refractive index: Uncertain
8. Flashpoint (ºC): Unsure
9. Specific optical rotation (º): Unsure
10. Autoignition point or ignition temperature (ºC): Unsure
11. Vapor pressure (kPa,25ºC): Unsure
12. �/SPAN> 2. Molar volume (m3/mol）：123.7 3. isotonic specific volume (90.2K):369.7 4. Surface Tension (dyne/cm):79.8 5. Polarizability（10-24cm3):17.61
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): 0.1
2. Number of hydrogen bond donors: 3
3. Number of hydrogen bond acceptors: 5
4. Number of rotatable chemical bonds: 2
5. Number of tautomers: 4
6. Topological molecule polar surface area 90.6
7. Number of heavy atoms: 13
8. Surface charge: 0
9. Complexity: 197
10. Number of isotope atoms: 0
11. Determine the number of atomic stereocenters: 0
12. Uncertain number of atomic stereocenters: 0
13. Determine the number of chemical bond stereocenters: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 1
Properties and stability
has unique blue fluorescence,pH3～4 is the largest when , the fluorescence disappears when reacting with bisulfite, and returns to the original fluorescence intensity when reacting with hydrogen peroxide.
Storage method
Should be sealed in0℃The following is stored dry. SPAN>
Synthesis method
None
Purpose
Organic synthesis. Biochemical research.
ILY: Arial”>pH3～4 is the largest and reacts with bisulfite to fluoresce disappears, and reacts with hydrogen peroxide to return to the original fluorescence intensity.
Storage method
Should be sealed in0℃The following is stored dry. SPAN>
Synthesis method
None
Purpose
Organic synthesis. Biochemical research.
