2,4-dihydroxypteridine

structural formula

• 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:487-21-8

mdl number:mfcd00066250

einecs number:207-652-7

rtecs number:uo3416000

brn number:157503

pubchem number:24896337

physical property data

1. character: yellow

2. density (g/ m³,25/4℃): undetermined

3. relative vapor density (g/cm³,air=1): undetermined

4. melting point (ºc):300

5. boiling point (ºc,normal pressure): undetermined

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

7. refractive index: undetermined

8. flash point (ºf): undetermined

9. specific optical rotation (º): undetermined

10. autoignition point or ignition temperature (ºc): undetermined

11. vapor pressure (kpa,25ºc): undetermined

12. saturation 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: soluble in water

toxicological data

acute toxicity: rat intraperitoneal ld50: >400mg/kg, no details other than 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:40.22

2、 molar volume（m³/mol): 93.3

3、 isotonic specific volume（90.2k）：317.7

4、 surface tension（3.0 dyne/cm span>):134.4

5、 polarizability(0.5 10^-24cm³):15.94

compute chemical data

1. reference value for hydrophobic parameter calculation (xlogp): -1

2. number of hydrogen bond donors: 2

3. number of hydrogen bond acceptors: 4

4. number of rotatable chemical bonds: 0

5. number of tautomers: 12

6. topological molecular polar surface area 84

7. number of heavy atoms: 12

8. surface charge: 0

9. complexity: 230

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

use and store according to specifications, no decomposition will occur, and avoid contact with oxides

storage method

save sealed and placed in a ventilated, dry environment

synthesis method

none yet

purpose

none yet

resource:allhdi.com