Structural formula
Business number | 02HJ |
---|---|
Molecular formula | C7H5NO4 |
Molecular weight | 167.12 |
label |
2,5-pyridinedicarboxylic acid, 2,5-Dipyridinecarboxylic acid, Pyridine-2,5-dicarboxylic acid, Picolinic acid, 2,5-pyridinedicarboxylic acid, Pyridine2,5-dicarboxylate, 2,5-Lutidinic acid, 2,5-Pyridinecarboxylic acid, 2,5-Pyridinedicarboxylic acid, isocinchomeric acid, Isocinchomeronic acid, Rarechem al bo 2394, Pyridine-2,5-dicarboxylic acid |
Numbering system
CAS number:100-26-5
MDL number:MFCD00006297
EINECS number:202-834-2
RTECS number:None
BRN number:131697
PubChem number:24888040
Physical property data
1. Properties: light brown leaf-like or prismatic crystals.
2. Density (g/mL, 20℃): Undetermined
3. Relative vapor density (g/mL, air=1): Undetermined
4 . Melting point (ºC): 2545. Boiling point (ºC, normal pressure): Undetermined
6. Boiling point (ºC, 0.6mmHg): Undetermined
7. Refractive index: Undetermined
8. Flash point (ºC): Undetermined
9. Specific rotation (º): Undetermined
10. Autoignition point or ignition temperature (ºC) : Undetermined
11. Vapor pressure (mmHg, 20ºC): Undetermined
12. Saturated vapor pressure (kPa, ºC): Undetermined
13 . Heat of combustion (KJ/mol): Undetermined
14. Critical temperature (ºC): Undetermined
15. Critical pressure (KPa): Undetermined
16. Logarithmic value of oil-water (octanol/water) partition coefficient: Undetermined
17. Explosion upper limit (%, V/V): Undetermined
18. Explosion Lower limit (%, V/V): Undetermined
19. Solubility: Slightly soluble in boiling water and boiling ethanol, almost insoluble in cold water, ethanol, ether and benzene.
Toxicological data
None yet
Ecological data
This substance is slightly hazardous to water.
Molecular structure data
1. Molar refractive index: 38.20
2. Molar volume (cm3/mol): 107.7
3. Isotonic ratio�� (90.2K): 325.6
4. Surface tension (dyne/cm): 83.5
5. Dielectric constant:
6. Dipole moment (10-24cm3):
7. Polarizability: 15.14
Compute chemical data
1. Hydrophobic parameter calculation reference value (XlogP): 0.2
2. Number of hydrogen bond donors: 2
3. Number of hydrogen bond acceptors: 5
4. Number of rotatable chemical bonds: 2
5. Number of tautomers:
6. Topological molecular polar surface area (TPSA): 87.5
7. Number of heavy atoms: 12
8. Surface charge: 0
9. Complexity: 204
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 Number: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 1
Properties and stability
Avoid contact with strong oxidizing agents.
Storage method
Store in a cool, ventilated warehouse. Keep away from fire and heat sources. should be kept away from oxidizer, do not store together. Equipped with the appropriate variety and quantity of fire equipment. Suitable materials should be available in the storage area to contain spills.
Synthesis method
None yet
Purpose
Manufacture of niacin. Intermediates such as pesticides and fuels.