1. Reference value for hydrophobic parameter calculation (XlogP): None<\/P><\/p>\n
2. Number of hydrogen bond donors: 1<\/p>\n
3. Number of hydrogen bond acceptors: 3<\/p>\n
4. Number of rotatable chemical bonds: 0<\/p>\n
5. Number of tautomers: 5<\/p>\n
6. ExtensionThe polar surface area of \u200b\u200bthe molecule is 46.5<\/p>\n
7. Number of heavy atoms: 12<\/p>\n
8. Surface charge: 0<\/p>\n
9. Complexity: 222<\/p>\n
10. Number of isotope atoms: 0<\/p>\n
11. Number of determined atomic stereocenters: 0<\/p>\n
12. Number of uncertain atomic stereocenters: 0<\/p>\n
13. Determine the number of stereocenters of chemical bonds: 0<\/p>\n
14. Uncertain number of stereocenters of chemical bonds: 0<\/p>\n
15. Number of covalent bond units: 1<\/p>\n<\/p>\n
Properties and stability<\/h2>\n
\n None\n <\/p>\n
Storage method<\/h2>\n
\n
This product should be stored in a sealed, cool and dry place. <\/SPAN><\/SPAN><\/P>\n <\/p>\n
Synthesis method<\/h2>\n
\n By<\/SPAN>2<\/SPAN>,<\/SPAN>4-<\/SPAN>Dihydroxyacetophenone and malic acid in the presence of sulfuric acid<\/SPAN>90-130<\/SPAN>\u2103 Condensation removes the acetyl group to obtain umbelliferone. <\/SPAN>\n <\/p>\n