structural formula
business number | 053m |
---|---|
molecular formula | c7h8o2 |
molecular weight | 124.14 |
label |
3-methylcatechol, 2,3-dihydroxytoluene, 1,2-dihydroxy-3-methylbenzene |
numbering system
cas number:488-17-5
mdl number:mfcd00016435
einecs number:207-672-6
rtecs number:ux1910000
brn number:774602
pubchem number:24896838
physical property data
1. properties: brown crystalline powder
2. density (g/m3, 25/4℃): undetermined
3 . relative vapor density (g/cm3, air=1): 0.024
4. melting point (ºc): 65~68
5. boiling point (ºc, normal pressure): 241
6. boiling point (ºc, 5.2kpa): undetermined
7. refractive index: undetermined
8. flash point (ºc): 140
9. specific rotation (º): undetermined
10. autoignition point or ignition temperature (ºc): undetermined
11. vapor pressure (kpa, 25ºc): undetermined
12. saturated vapor pressure (kpa, 60ºc): undetermined
13. heat of combustion (kj/mol ): 49.7
14. critical temperature (ºc): undetermined
15. critical pressure (kpa): undetermined
16. oil and water (octanol /water) logarithmic value of the distribution coefficient: 1.34
17. explosion upper limit (%, v/v): undetermined
18. explosion lower limit (%, v/v): undetermined
19. solubility: slightly soluble in water
toxicological data
acute toxicity: mouse intravenous ld50: 56mg/kg, no details except lethal dose;
ecological data
this substance may be harmful to the environment, and special attention should be paid to water bodies.
molecular structure data
1. molar refractive index: 34.84
2. molar volume (cm3/mol): 102.5
3. isotonic specific volume (90.2k ): 274.9
4. surface tension (dyne/cm): 51.6
5. polarizability (10-24cm3): 13.81
compute chemical data
1. reference value for hydrophobic parameter calculation (xlogp): none
2. number of hydrogen bond donors: 2
3. number of hydrogen bond acceptors: 2
4. number of rotatable chemical bonds: 0
5. number of tautomers: 19
6. topological molecule polar surface area 40.5
7. number of heavy atoms: 9
8. surface charge: 0
9. complexity: 92.9
10. number of isotope atomsamount: 0
11. determine the number of atomic stereocenters: 0
12. uncertain number of atomic stereocenters: 0
13. determine the chemical bond position number of stereocenters: 0
14. number of uncertain chemical bond stereocenters: 0
15. number of covalent bond units: 1
properties and stability
1. use and store according to specifications. it will not decompose and avoid contact with oxides.
2. exist in smoke.
storage method
seal and store in a ventilated, dry environment
synthesis method
none
purpose
none