2-Hydroxy-1,4-naphthoquinone 2-Hydroxy-1,4-naphthoquinone
Structural formula
| Business number | 01U8 |
|---|---|
| Molecular formula | C10H6O3 |
| Molecular weight | 174.15 |
| label |
2-Hydroxy-p-naphthoquinone, 2-Hydroxy-p-naphthoquinone, Lawsone, Natural Orange 6 |
Numbering system
CAS number:83-72-7
MDL number:MFCD00001678
EINECS number:201-496-3
RTECS number:QL8200000
BRN number:1565260
PubChem number:24895653
Physical property data
1. Characteristics: bright yellow prismatic crystals.
2. Density (g/mL,25/4℃): Undetermined
3. Relative vapor density (g/mL,air=1): Undetermined
4. Melting point (ºC): 195-196℃(decomposition)
5. Boiling point (ºC,Normal pressure): Undetermined
6. Boiling point (ºC,5.2kPa): Undetermined
7. Refractive Index: Undetermined
8. Flashpoint (ºC): Undetermined
9. Specific optical rotation (º): Undetermined
10. Autoignition point or ignition temperature (ºC): Undetermined
11. Vapor pressure (kPa,25ºC): Undetermined
Ecological data
None yet
Molecular structure data
1. Molar refractive index: 44.49
2. Molar volume (m3/mol）：117.5
3. isotonic specific volume (90.2K):343.8
4. Surface Tension (dyne/cm):73.2
5. Polarizability（10-24cm3):17.63
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): 0.9
2. Number of hydrogen bond donors: 1
3. Number of hydrogen bond acceptors: 3
4. Number of rotatable chemical bonds: 0
5. Number of tautomers: 3
6. Topological molecule polar surface area 54.4
7. Number of heavy atoms: 13
8. Surface charge: 0
9. Complexity: 291
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
None yet
Storage method
This product should be sealed and stored in a cool, dry place.
Synthesis method
Will1,2-Naphthoquinone -4-Ammonium sulfonate and sulfur react in methanol to obtain methoxynaphthalene Quinone is then hydrolyzed with sodium hydroxide to obtain2-hydroxy-1,4-Naphthoquinone. Yield58-65%.
Purpose
Hair dye, fungicide .
Number of stereocenters: 0
12. Uncertain number of stereocenters of atoms: 0
13. Determined number of stereocenters of chemical bonds: 0
14. Uncertain number of stereocenters of chemical bonds: 0
15. Number of covalent bond units: 1
Properties and stability
None yet
Storage method
This product should be sealed and stored in a cool, dry place.
Synthesis method
Will1,2-Naphthoquinone -4-Ammonium sulfonate and sulfur react in methanol to obtain methoxynaphthalene Quinone is then hydrolyzed with sodium hydroxide to obtain2-hydroxy-1,4-Naphthoquinone. Yield58-65%.
Purpose
Hair dye, fungicide .