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.
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