structural formula

business number	0259
molecular formula	c12h8n2
molecular weight	180.21
label	anthracene, dibenzo[b,e]pyrazine

• numbering system
• physical property data
• toxicological data
• ecological data
• molecular structure data
• computing chemical data
• more
  • properties and stability
  • storage method
  • synthesis method
  • purpose

numbering system

cas number:92-82-0

mdl number:mfcd00005023

einecs number:202-193-9

rtecs number:sg1360000

brn number:126500

pubchem number:24887204

physical property data

1. character:colorless or light yellow needle-shaped crystal

2. density (g/ml,25/4℃): undetermined

3. relative vapor density (g/ml,air=1): undetermined

4. melting point (ºc): 171

5. boiling point (ºc,normal pressure):360℃ or above

6. boiling point (ºc,5.2kpa): undetermined

7. refractive index: undetermined

8. flash point (ºc): undetermined

9. specific optical 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): undetermined

14. critical temperature (ºc): undetermined

15. critical pressure (kpa): undetermined

16. oil and water (octanol/log value of water) partition coefficient: undetermined

17. explosion limit (%,v/v): undetermined

18. lower explosion limit (%,v/v): undetermined

19. solubility:almost insoluble in water, slightly soluble in ethanol, ether and benzene, soluble in inorganic acids to form a yellow to red solution.

toxicological data

none

ecological data

none

molecular structure data

1. molar refractive index: 58.12

2. molar volume (m³/mol):144.1

3. isotonic specific volume (90.2k):403.2

4. surface tension (dyne/cm):61.2

5. polarizability（10^-24cm³): 23.04

compute chemical data

1. reference value for hydrophobic parameter calculation (xlogp): none

2. number of hydrogen bond donors: 0

3. number of hydrogen bond acceptors: 2

4. number of rotatable chemical bonds: 0

5. number of tautomers: none

6. topological molecule polar surface area 25.8

7. number of heavy atoms: 14

8. surface charge: 0

9. complexity: 163

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

storage method

this product should be kept sealed, cool and dry.

synthesis method

aniline vapor can be passed through a red heat pipe, or o-phenylenediamine and catechol can be heated in the pipe, or 2-it is obtained by distillation of aminodiphenylamine and lead monoxide.

purpose

mainly used in dyes, medicines, organic synthesis intermediates and biochemicals research.

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