
structural formula
| business number | 0234 |
|---|---|
| molecular formula | c8h10o3 |
| molecular weight | 154.16 |
| label |
pyrogallol-1,3-dimethyl ether, pyrogallol-1,3-dimethyl ether, pyrogallol 1,3-dimethyl ether |
numbering system
cas number:91-10-1
mdl number:mfcd00064434
einecs number:202-041-1
rtecs number:sl0900000
brn number:1526871
pubchem number:24864183
physical property data
1. properties: white or colorless crystals with woody medicinal smell.
2. density (g/ml, 25/4℃): undetermined
3. relative vapor density (g/ml, air=1): undetermined
4. melting point (ºc): 52~56
5. boiling point (ºc, normal pressure): 261
6. boiling point (ºc, 5.2kpa): not available determined
7. refractive index: undetermined
8. flash point (ºc): 140
9. specific rotation (º): [α] d20 +153.9° (c=10, water)
10. autoignition point or ignition temperature (ºc): not determined
11. vapor pressure (kpa, 25ºc): not determined determined
12. saturated vapor pressure (kpa, 60ºc): undetermined
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
p>
17. explosion upper limit (%, v/v): undetermined
18. explosion lower limit (%, v/v): undetermined
19. dissolution properties: easily soluble in ether, soluble in ethanol, alkali solution, slightly soluble in water.
toxicological data
none
ecological data
none
molecular structure data
1. molar refractive index: 41.49
2. molar volume (cm3/mol): 135.8
3. isotonic specific volume (90.2k ): 335.6
4. surface tension (dyne/cm): 37.2
5. polarizability (10-24cm3): 16.44
compute chemical data
1. hydrophobic parameter calculation reference value (xlogp): 1.1
2. number of hydrogen bond donors: 1
3. number of hydrogen bond acceptors: 3
4. number of rotatable chemical bonds: 2
5. number of tautomers: 2
6. topological molecular polar surface area (tpsa): 38.7
p>
7. heavynumber of atoms: 11
8, surface charge: 0
9, complexity: 104
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
1. found in oriental tobacco leaves.
storage method
this product should be kept sealed.
synthesis method
1. tobacco: or, 26; prepared by reacting pyrogallol with methyl iodide in an alkali aqueous solution medium, or by demethylating pyrogallol in an alkali aqueous solution or ethanol.
purpose
used in organic synthesis.

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