Catechol purple
Structural formula
| Business number | 0380 |
|---|---|
| Molecular formula | C19H14O7S |
| Molecular weight | 386.38 |
| label |
Catechol sulfonphthalein, catecholamine, dicatechol purple, O-diphenolsulfonphthalein, 3′,3′,4′-Trihydroxyfuchsone-2′-Sulfonic Acid, Pyrocatecholsulfonphthalein, indicator |
Numbering system
CAS number:115-41-3
MDL number:MFCD00005868
EINECS number:204-088-3
RTECS number:None
BRN number:353938
PubChem number:24898883
Physical property data
1. Characteristics: Red-brown crystalline powder
2. Density (g/mL, 25℃): Undetermined
3. Relative vapor density (g/mL,Air =1) Undetermined:
4. Melting point (ºC):185
5. Boiling point (ºC,Normal pressure): Undetermined
6. Boiling point (ºC,KPa)：Undetermined
7. Refractive index （n20/D）：Undetermined
8. Flashpoint (ºC): Undetermined
9. Specific optical rotation (ºC): Undetermined
10. Autoignition point or ignition temperature (ºC): Undetermined
11. Vapor pressure (mmHg,38ºC): Undetermined
12. Saturated vapor pressure (kPa, ºC): Undetermined
13. Heat of combustion (KJ/mol): Undetermined
14. Critical temperature (ºC): Not confirmedSPAN style=”FONT: 7pt ‘Times New Roman'”> Molar refractive index:95.43
2. Molar volume (m3/mol）：236.6
3. isotonic specific volume (90.2K):721.8
4. Surface Tension (dyne/cm):86.5
5. Polarizability（10-24cm3):37.83
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): None
2. Number of hydrogen bond donors: 4
3. Number of hydrogen bond acceptors: 7
4. Number of rotatable chemical bonds: 2
5. Number of tautomers: 27
6. Topological molecule polar surface area 133
7. Number of heavy atoms: 27
8. Surface charge: 0
9. Complexity: 619
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
Avoid contact with strong oxides.
Storage method
Stored in a cool, ventilated warehouse. Keep away from fire and heat sources. They should be stored separately from oxidants, etc. and avoid mixed storage. Equipped with corresponding varieties and quantities of
Firefighting equipment. The storage area should be equipped with emergency release equipment and suitable containment materials.
Synthesis method
It is derived from the reaction of o-benzoylsulfonimide and catechol.
Purpose
Used as a complex titration indicator.
“>Storage method
Stored in a cool, ventilated warehouse. Keep away from fire and heat sources. They should be stored separately from oxidants, etc. and avoid mixed storage. Equipped with corresponding varieties and quantities of
Firefighting equipment. The storage area should be equipped with emergency release equipment and suitable containment materials.
Synthesis method
It is derived from the reaction of o-benzoylsulfonimide and catechol.
Purpose
Used as a complex titration indicator.
