1.0 2010-04-08 22:10:50 UTC 2025-11-19 00:26:51 UTC FDB013662 Gibberellin A39 Constituent of the seeds of Cucurbita pepo and Cucurbita maxima. Gibberellin A39 is found in winter squash, fruits, and japanese pumpkin. GA39 Gibberellin A39 C20H26O8 394.4156 394.162767808 5,11-dihydroxy-4-methyl-13-methylidenetetracyclo[10.2.1.0¹,⁹.0³,⁸]pentadecane-2,4,8-tricarboxylic acid 5,11-dihydroxy-4-methyl-13-methylidenetetracyclo[10.2.1.0¹,⁹.0³,⁸]pentadecane-2,4,8-tricarboxylic acid 57672-81-8 CC1(C2C(C(O)=O)C34CC(C(O)CC3C2(CCC1O)C(O)=O)C(=C)C4)C(O)=O InChI=1S/C20H26O8/c1-8-6-19-7-9(8)10(21)5-11(19)20(17(27)28)4-3-12(22)18(2,16(25)26)14(20)13(19)15(23)24/h9-14,21-22H,1,3-7H2,2H3,(H,23,24)(H,25,26)(H,27,28) LKLDZCIWUDJQCF-UHFFFAOYSA-N belongs to the class of organic compounds known as c20-gibberellin 20-carboxylic acids. These are c20-gibberellins with a carboxyl group at the 6-position. C20-gibberellin 20-carboxylic acids Organic compounds Lipids and lipid-like molecules Prenol lipids Diterpenoids logp 0.14 ALOGPS logs -1.82 ALOGPS solubility 5.99e+00 g/l ALOGPS logp 0.24 ChemAxon pka_strongest_acidic 3.58 ChemAxon pka_strongest_basic -0.87 ChemAxon iupac 5,11-dihydroxy-4-methyl-13-methylidenetetracyclo[10.2.1.0¹,⁹.0³,⁸]pentadecane-2,4,8-tricarboxylic acid ChemAxon average_mass 394.4156 ChemAxon mono_mass 394.162767808 ChemAxon smiles CC1(C2C(C(O)=O)C34CC(C(O)CC3C2(CCC1O)C(O)=O)C(=C)C4)C(O)=O ChemAxon formula C20H26O8 ChemAxon inchi InChI=1S/C20H26O8/c1-8-6-19-7-9(8)10(21)5-11(19)20(17(27)28)4-3-12(22)18(2,16(25)26)14(20)13(19)15(23)24/h9-14,21-22H,1,3-7H2,2H3,(H,23,24)(H,25,26)(H,27,28) ChemAxon inchikey LKLDZCIWUDJQCF-UHFFFAOYSA-N ChemAxon polar_surface_area 152.36 ChemAxon refractivity 93.83 ChemAxon polarizability 38.85 ChemAxon rotatable_bond_count 3 ChemAxon acceptor_count 8 ChemAxon donor_count 5 ChemAxon physiological_charge -3 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 98064 Specdb::MsMs 98065 Specdb::MsMs 98066 Specdb::MsMs 162897 Specdb::MsMs 162898 Specdb::MsMs 162899 Specdb::CMs 12570 Specdb::CMs 44155 HMDB35045 #<Reference:0x000055ce31786db0> Fruits Unknown generic Japanese pumpkin Type 1 specific Cucurbita maxima 3661 Winter squash Type 1 specific Cucurbita maxima 3661