
structural formula
| business number | 07as |
|---|---|
| molecular formula | c5h8n2o2 |
| molecular weight | 128.13 |
| label |
5,6-dihydrothymine, 5,6-dihydro-5-methyluracil, 5,6-dihydro-5-methyl-2,4-dihydroxypyrimidine, 5,6-dihydro-5-methyluracil, nucleic acid |
numbering system
cas number:696-04-8
mdl number:mfcd00023159
einecs number:211-787-7
rtecs number:none
brn number:81983
pubchem number:24857735
physical property data
1. characteristics: white solid.
2. density (g/ml,25/4℃): undetermined
3. relative vapor density (g/ml,air=1): undetermined
4. melting point (ºc): 263-266
5. boiling point (ºc,normal pressure): undetermined
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/logarial value of the partition coefficient of water: undetermined
17. explosion upper limit (%,v/v): undetermined
18. lower explosion limit (%,v/v): undetermined
19. solubility: undetermined .
toxicological data
none yet
ecological data
usually not harmful to water, do not discharge materials into the surrounding environment without government permission.
molecular structure data
1. molar refractive index: 30.11
2. molar volume(m3/ mol):111.5
3. isotonic ratio(90.2k):265.4
4. surface tension(dyne/cm):32.1
5. dielectric constant:
6. dipole moment(10 -24cm3):
7. polarizability: 11.93
compute chemical data
1. reference value for hydrophobic parameter calculation (xlogp): -0.6
2. number of hydrogen bond donors: 2
3. number of hydrogen bond acceptors: 2
p>
4. number of rotatable chemical bonds: 0
5. number of tautomers: 8
6. topological molecule polar surface area 58.2
7. number of heavy atoms: 9
8. surface charge: 0
9. complexity: 155
10. number of isotope atoms: 0
11. determine the number of atomic stereocenters: 0
12. uncertain number of atomic stereocenters: 1
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
keep away from oxides, heat and open flames.
storage method
store in an airtight container and place store in a cool, dry place. store away from oxidizing agents.
synthesis method
purpose
none yet

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