Description

Gibberellic acid (GA3) is a naturally occurring plant hormone belonging to the gibberellin family, widely recognized for its role in regulating growth and developmental processes in plants. With the molecular formula C₁₉H₂₂O₆ and CAS number 77-06-5, this compound is a key tool in agricultural and horticultural research. Its IUPAC name, (1R,2R,5S,8S,9S,10R,11S,12S)-5,12-dihydroxy-11-methyl-6-methylidene-16-oxo-15-oxapentacyclo[9.3.2.1^5,8.0^1,10.0^2,8], reflects its complex pentacyclic diterpenoid structure. Gibberellic acid is highly soluble in ethanol and methanol but sparingly soluble in water, making it suitable for various formulation applications. Available in high-purity grades, our Gibberellic acid is ideal for laboratory use, plant physiology studies, and commercial crop enhancement.

Properties

• CAS Number: 77-06-5
• Complexity: 772
• IUPAC Name: (1R,2R,5S,8S,9S,10R,11S,12S)-5,12-dihydroxy-11-methyl-6-methylene-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadec-13-ene-9-carboxylic acid
• InChI: InChI=1S/C19H22O6/c1-9-7-17-8-18(9,24)5-3-10(17)19-6-4-11(20)16(2,15(23)25-19)13(19)12(17)14(21)22/h4,6,10-13,20,24H,1,3,5,7-8H2,2H3,(H,21,22)/t10-,11+,12-,13-,16-,17+,18+,19-/m1/s1
• InChI Key: IXORZMNAPKEEDV-OBDJNFEBSA-N
• LogP: log Kow = 0.24
• Exact Mass: 346.14163842
• Molecular Formula: C19H22O6
• Molecular Weight: 346.4
• SMILES: C[C@@]12[C@H](C=C[C@@]3([C@@H]1[C@@H]([C@]45[C@H]3CC[C@](C4)(C(=C)C5)O)C(=O)O)OC2=O)O
• Topological: 104
• Monoisotopic Mass: 346.14163842
• Physical Description: Gibberellic acid is a white powder.
• Color/Form: Crystals from ethyl acetate
• Odor: Odorless
• Melting Point: 451 to 455 °F
• Solubility: Slightly soluble
• Density: Bulk density = 600 mg/ml at 28 °C
• Stability/Shelf Life: Dry gibberellic acid is stable at room temp.
• Dissociation Constants: pKa = 4.0
• Synonyms: GIBBERELLIC ACID, Gibberellin A3, Berelex, Brellin, Gibberellin X, Gib-Tabs, Gib-Sol, Gibberellic acid GA3, Cekugib, Gibreskol, Grocel, Pro-Gibb, Pro-Gibb Plus, Gibberellins A4A7, Gibrescol, Gibefol, Regulex, Ryzup, Gibberellinsaeure, Activol GA, Pgr-iv, Acide gibberellique, Activol, GA3, Caswell No. 467, Gibbrel, CHEBI:28833, gibberellin 3, UNII-BU0A7MWB6L, BU0A7MWB6L, NCI-C55823, CCRIS 4820, HSDB 712, DTXSID0020656, AI3-52922, EINECS 201-001-0, NSC 14190, NSC-14190, EPA Pesticide Chemical Code 043801, BRN 0054346, GA [Plant Growth Regulator], Gibberellic acid [BSI:ISO], DTXCID40656, 5-18-09-00269 (Beilstein Handbook Reference), 2,4a,7-Trihydroxy-1-methyl-8-methylenegibb-3-ene-1,10-dicarboxylic acid 1,4a-lactone, Gibb-3-ene-1,10-dicarboxylic acid, 2,4a,7-trihydroxy-1-methyl-8-methylene-, 1,4a-lactone, (1alpha,2beta,4aalpha,4bbeta,10beta)-2,4a,7-Trihydroxy-1-methyl-8-methylenegibb-3-ene-1,10-dicarboxylic acid 1,4a-lactone, (3S,3aR,4S,4aS,7S,9aR,9bR,12S)-7,12-Dihydroxy-3-methyl-6-methylene-2-oxoperhydro-4a,7-methano-9b,3-propenoazuleno(1,2-b)furan-4-carboxylic acid, (3S,3aS,4S,4aS,6S,8aR,8bR,11S)-6,11-dihydroxy-3-methyl-12-methylene-2-oxo-4a,6-ethano-3,8b-prop-1-enoperhydroindeno(1,2-b)furan-4-carboxylic acid, (3S,3aS,4S,4aS,6S,8aS,8bS,11S)-6,11-Dihydroxy-3-methyl-12-methylene-2-oxo-4a,6-ethano-3,8b-prop-1-enoperhydroindeno(1,2-b)furan-4-carboxylic acid, (3S,3aS,4S,4aS,7S,9aR,9bR,12S)-7,12-Dihydroxy-3-methyl-6-methylene-2-oxoperhydro-4a,7-methano-9b,3-propeno(1,2-b)furan-4-carboxylic acid, 2beta,4aalpha,7-Trihydroxy-1beta-methyl-8-methylene-4aalpha,4bbeta-gibb-3-ene-1alpha,10beta-dicarboxylic acid 1,4a-lactone, 2beta,4alpha,7-Trihydroxy-1-methyl-8-methylene-4aalpha,4bbeta-gibb-3-ene-1alpha,10beta-dicarboxylic acid 1,4a-lactone, 2beta,4alpha,7-Trihydroxy-1-methylene-4aalpha,4bbeta-gibb-3-ene-1alpha,10beta-dicarboxylic acid 1,4a-lactone, 2,4alpha,7-Trihydroxy-1-methyl-8-methylenegibb-3-ene-1,10 beta-dicarboxylic acid 1,4alpha-lactone, GA (Plant Growth Regulator), GIBBERELLIC ACID (USP-RS), GIBBERELLIC ACID [USP-RS], GA3 gibberellin, (3S,3aS,4S,4aS,6S,8aR,8bR,11S)-6,11-Dihydroxy-3-methyl-12-methylene-2-oxo-4a,6-ethano-3,8b-prop-1-enoperhydroindeno[1,2-b]furan-4-carboxylic acid, 2beta,7alpha-dihydroxy-1beta-methyl-8-methylidene-13-oxo-4a,1alpha-epoxymethano-4aalpha,4bbeta-gibb-3-ene-10beta-carboxylic acid, GA(3) gibberellin, Ralex, Pro-Vide, Release LC, (1R,2R,5S,8S,9S,10R,11S,12S)-5,12-dihydroxy-11-methyl-6-methylidene-16-oxo-15-oxapentacyclo(9.3.2.1(5,8).0(1,10).0(2,8))heptadec-13-ene-9-carboxylic acid, (1R,2R,5S,8S,9S,10R,11S,12S)-5,12-dihydroxy-11-methyl-6-methylidene-16-oxo-15-oxapentacyclo[9.3.2.1(5,8).0(1,10).0(2,8)]heptadec-13-ene-9-carboxylic acid, (+)-Gibberellin A3, USEPA/OPP Pesticide Code: 043801, TU 64-3-103-75, 2,4A,7-TRIHYDROXY-1-METHYL-8-METHYLENEGIBB-3-ENE-1,10-CARBOXYLIC ACID 1,4-LACTONE, 2,4a,7-Trihydroxy-1-methyl-8-methylenegibb-3-ene-1,10-carboxylic acid 1-4-lactone, (3S,3aR,4S,4aS,7S,9aR,9bR,12S)-7,12-Dihydroxy-3-methyl-6-methylene-2-oxoperhydro-4a,7-methano-9b,3-propenoazuleno, (3S,3aS,4S,4aS,6S,8aS,8bS,11S)-6,11-Dihydroxy-3-methyl-12-methylene-2-oxo-4a,6-ethano-3,8b-prop-1-enoperhydroindeno, (3S,3aS,4S,4aS,7S,9aR,9bR,12S)-7,12-Dihydroxy-3-methyl-6-methylene-2-oxoperhydro-4a,7-methano-9b,3-propeno, 2,4 alpha,7-trihydroxy-1-methyl-8-methylenegibb-3-ene-1,10 beta-dicarboxylic acid 1,4 alpha-lactone, 2,4alpha,7-TRIHYDROXY-1-METHYL-8-METHYLENEGIBB-3-ENE-1,10-DICARBOXYLIC ACID 1,4-alpha-LACTONE, 201-001-0, 2Beta,4aAlpha,7-trihydroxy-1Beta-methyl-8-methylene-4aAlpha,4bBeta-gibb-3-ene-1alpha,10Beta-dicarboxylic acid 1-4a lactone, 2Beta,4Alpha,7-Trihydroxy-1-methyl-8-methylene-4aAlpha,4bBeta-gibb-3-ene-1alpha, 10beta-dicarboxylic acid 1,4a-lactone, 3S,3aS,4S, 4aS,6S,8aR,8bR,11S)-6,11-dihydroxy-3-methyl-12-methylene-2-oxo-4a,6-ethano-3, 8b-prop-l-enoperhydroindeno-(1,2-b)furan-4-carboxylic acid, 4A,1-(EPOXYMETHANO)-7,9A-METHANOBENZ(A)AZULENE, GIBB-3-ENE-1,10-DICARBOXYLIC ACID DERIV., 77-06-5, Gibberellin, (+)-Gibberellic Acid, Gibberelic acid, Gibb-3-ene-1,10-dicarboxylic acid, 2,4a,7-trihydroxy-1-methyl-8-methylene-, 1,4a-lactone, (1alpha,2beta,4aalpha,4bbeta,10beta)-, MFCD00079329, Acide gibberellique [ISO-French], GIBBERELLIC ACID, 90%, NCGC00091033-01, Gibberellic acid 100 microg/mL in Acetonitrile, Gibberellate, GIBERELLIN, Gibberelate, Gibberelin, Gibberillate, Gibberellic acid [ISO:BSI], NSC14190, NSC19450, Gibberillic acid, Gibb-tabs, Gibberellic A3, 4psb, 2,7-Trihydroxy-1-methyl-8-methylenegibb-3-ene-1,10-carboxylic acid 1-4-lactone, CAS-77-06-5, Gibberellin (GA), (1S,2S,4aR,4bR,7S,9aS,10S,10aR)-2,7-dihydroxy-1-methyl-8-methylene-13-oxo-1,2,4b,5,6,7,8,9,10,10a-decahydro-4a,1-(epoxymethano)-7,9a-methanobenzo[a]azulene-10-carboxylic acid, Gibb-3-ene-1, 2,4a,7-trihydroxy-1-methyl-8-methylene-, 1,4a-lactone, (1.alpha.,2.beta.,4a.alpha.,4b.beta.,10.beta.)-, Gibb-3-ene-1,10-dicarboxylic acid, 2,4a,7-trihydroxy-1-methyl-8-methylene-, 1,4a-lactone, (1.alpha.,2.beta.,4a.alpha.,4b.beta.,10.beta.)-, Gibberellin A3;GA3, GIBERILLIC ACID, Spectrum_000628, 4q0k, SpecPlus_000148, 2b-Hydroxygibberellin 1, GibberellinsA currencyure, PS49_SUPELCO, Prestwick0_000965, Prestwick1_000965, Prestwick2_000965, Prestwick3_000965, Spectrum2_000311, Spectrum3_001301, Spectrum4_001444, Spectrum5_000027, gibberellic acid (ga-3), bmse000317, SCHEMBL15577, BSPBio_000969, BSPBio_002961, KBioGR_001927, KBioSS_001108, MLS001055447, MLS002154076, DivK1c_006244, G7645_SIGMA, GIBBERELLIC ACID [MI], SPBio_000302, SPBio_002890, GIBBERELLIC ACID [ISO], BPBio1_001067, MEGxm0_000440, GIBBERELLIC ACID [HSDB], CHEMBL1232952, ACon0_000224, ACon1_000551, BCBcMAP01_000012, KBio1_001188, KBio2_001108, KBio2_003676, KBio2_006244, KBio3_002181, HMS1571A11, HMS2098A11, HMS2231J16, HMS3039M06, HY-N1964, Tox21_202052, Tox21_303023, BDBM50561592, GEO-04261, MD-920, NSC-19450, s4766, AKOS024464812, AKOS025310145, CCG-208472, DB07814, FG30500, SMP1_000136, NCGC00091033-02, NCGC00091033-03, NCGC00091033-04, NCGC00091033-05, NCGC00091033-06, NCGC00091033-07, NCGC00091033-09, NCGC00256446-01, NCGC00259601-01, AS-14216, NCI60_000922, SMR000686070, SMR001233386, AB00513979, CS-0018282, A11801, Gibberellin, 80% gibberellin A3 basis (TLC), Gibberellic acid 1000 microg/mL in Acetonitrile, EN300-19631964, Q411138, Gibberellic acid, 90% gibberellin A3 basis (HPLC), Gibberellic acid, PESTANAL(R), analytical standard, BRD-K92758126-001-05-5, BRD-K92758126-001-06-3, BRD-K92758126-001-17-0, BRD-K92758126-001-18-8, 6F94D8A8-3230-4AB5-93C1-46F5E84FE343, Gibberellic Acid, Pharmaceutical Secondary Standard; Certified Reference Material, (1.ALPHA.,2.BETA.,4A.ALPHA.,4B.BETA.,10.BETA.)-2,4A,7-TRIHYDROXY-1-METHYL-8-METHYLENEGIBB-3-ENE-1,10-DICARBOXYLIC ACID 1,4A-LACTONE, (1R,2R,5S,8S,9S,10R,11S,12S)-5,12-dihydroxy-11-methyl-6-methylidene-16-oxo-15-oxapentacyclo[9.3.2.1^{5,8}.0^{1,10}.0^{2,8}]heptadec-13-ene-9-carboxylic acid, (1R,2R,5S,8S,9S,10R,11S,12S)-5,12-dihydroxy-11-methyl-6-methylidene-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadec-13-ene-9-carboxylic acid, (1S,2S,4aR,4bR,7S,9aS,10S,10aR)-2,7-dihydroxy-1-methyl-8-methylidene-13-oxo-1,2,4b,5,6,7,8,9,10,10a-decahydro-4a,1-(epoxymethano)-7,9a-methanobenzo[a]azulene-10-carboxylic acid, 2,4.ALPHA.,7-TRIHYDROXY-1-METHYL-8-METHYLENEGIBB-3-ENE-1,10-DICARBOXYLIC ACID 1,4-.ALPHA.-LACTONE, Gibberellic acid, plant cell culture tested, BioReagent, >=90% gibberellin A3 basis (of total gibberellins.)

Application

Gibberellic acid is extensively used in agriculture to promote seed germination, stem elongation, and fruit setting. It is applied to break dormancy in seeds and buds, enhancing uniform germination in crops like barley and oats. In horticulture, GA3 is employed to increase fruit size, particularly in seedless grapes, and to improve yield in citrus and other fruit trees. Researchers also utilize it to study plant hormone signaling pathways and developmental biology.

Safety and Hazards

GHS Hazard Statements

• H319 (61.3%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H412 (41.4%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P264+P265, P273, P280, P305+P351+P338, P337+P317, and P501

Hazard Classes and Categories

• Eye Irrit. 2 (61.3%)
• Aquatic Chronic 3 (41.4%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.