Cas no 561-56-8 (GIBBERELLIN A5)

Gibberellin A5 (GA5) is a plant growth regulator belonging to the gibberellin family, a class of diterpenoid compounds that influence developmental processes such as stem elongation, seed germination, and flowering. GA5 is distinguished by its specific activity in modulating plant growth and development, particularly in species where other gibberellins may exhibit limited efficacy. Its molecular structure allows for targeted interactions with gibberellin receptors, enabling precise regulation of physiological responses. GA5 is used in agricultural and horticultural research to study plant morphogenesis and improve crop yields. Its stability and bioactivity make it a valuable tool for controlled growth experiments and biotechnological applications.
GIBBERELLIN A5 structure
GIBBERELLIN A5 structure
Product Name:GIBBERELLIN A5
CAS No:561-56-8
MF:C19H22O5
MW:330.374986171722
CID:1058178
PubChem ID:443464
Update Time:2025-05-27

GIBBERELLIN A5 Chemical and Physical Properties

Names and Identifiers

    • GIBBERELLIN A5
    • 4a,1-(epoxymethano)-7,9a-methanobenz[a]azulene-10-carboxylic acid, 1,4,4b,5,6,7,8,9,10,10a-decahydro-7-hydroxy-1-methyl-8-methylene-13-oxo-, (1R,4aR,4bR,7S,9aS,10S,10aR)-
    • SCHEMBL2304063
    • 7alpha-hydroxy-1beta-methyl-8-methylidene-13-oxo-4a,1alpha-epoxymethano-4aalpha,4bbeta-gibb-3-ene-10beta-carboxylic acid
    • CS-0163640
    • CHEBI:29598
    • (1 alpha,4a alpha,4b beta,10 beta)-4a,7-Dihydroxy-1-methyl-8-methylenegibb-2-ene-1,10-dicarboxylic acid,1,4a-Lactone
    • Q27110166
    • 561-56-8
    • HY-N9418
    • (1R,2R,5S,8S,9S,10R,11R)-5-hydroxy-11-methyl-6-methylidene-16-oxo-15-oxapentacyclo[9.3.2.1(5,8).0(1,10).0(2,8)]heptadec-12-ene-9-carboxylic acid
    • GA5
    • DTXSID40332094
    • LMPR0104170028
    • (1R,2R,5S,8S,9S,10R)-5-hydroxy-11-methyl-6-methylidene-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadec-12-ene-9-carboxylic acid
    • Gibberellin A5
    • DA-53554
    • G90957
    • Inchi： 1S/C19H22O5/c1-10-8-17-9-18(10,23)7-4-11(17)19-6-3-5-16(2,15(22)24-19)13(19)12(17)14(20)21/h3,5,11-13,23H,1,4,6-9H2,2H3,(H,20,21)/t11-,12-,13-,16?,17+,18+,19-/m1/s1
    • InChI Key： ZOWHLBOPCIHIHW-LUGKBOQRSA-N
    • SMILES： O1C(C2(C)C=CC[C@]31[C@@H]2[C@H](C(=O)O)[C@]12CC(=C)[C@](CC[C@H]13)(C2)O)=O

Computed Properties

  • Exact Mass: 330.147
  • Monoisotopic Mass: 330.147
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 2
  • Hydrogen Bond Acceptor Count: 5
  • Heavy Atom Count: 24
  • Rotatable Bond Count: 1
  • Complexity: 740
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 6
  • Undefined Atom Stereocenter Count : 1
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • XLogP3: 1.2
  • Topological Polar Surface Area: 83.8?2

Experimental Properties

  • Density: 1.41
  • Melting Point: 255 - 257°C
  • Boiling Point: 573.8°C at 760 mmHg
  • Flash Point: 211.3°C
  • Refractive Index: 1.639
  • Solubility: DMSO (Slightly), Ethanol (Slightly), Methanol (Slightly)
  • Vapor Pressure: 0.0±3.6 mmHg at 25°C

GIBBERELLIN A5 Security Information

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GIBBERELLIN A5 Related Literature

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Additional information on GIBBERELLIN A5

Comprehensive Guide to GIBBERELLIN A5 (CAS No. 561-56-8): Properties, Applications, and Research Insights

GIBBERELLIN A5 (CAS No. 561-56-8) is a naturally occurring plant hormone belonging to the gibberellin family, a class of diterpenoid compounds critical for regulating plant growth and development. As one of over 130 identified gibberellins, GIBBERELLIN A5 plays a specialized role in processes such as stem elongation, seed germination, and flowering. Its unique molecular structure (C19H22O6) distinguishes it from other gibberellins like GA3 or GA4, making it a subject of intense agricultural and biochemical research.

Recent studies highlight GIBBERELLIN A5's potential in addressing modern agricultural challenges, particularly in the context of climate-resilient crops and sustainable farming. With increasing searches for "plant growth regulators for drought tolerance" and "organic alternatives to synthetic hormones", researchers are investigating how GA5 can enhance crop yields under abiotic stress. Unlike synthetic growth promoters, GIBBERELLIN A5 offers an eco-friendly solution aligned with the global shift toward precision agriculture.

The biosynthesis pathway of GIBBERELLIN A5 involves the oxidation of ent-kaurene in plastids, followed by modifications in the endoplasmic reticulum. This complex pathway explains why "gibberellin biosynthesis inhibitors" rank high among related search terms, as understanding these mechanisms could lead to breakthroughs in plant height control – a key concern for cereal crop management. The compound's low persistence in soil (half-life of 3-7 days) further enhances its environmental profile compared to traditional agrochemicals.

In horticultural applications, GIBBERELLIN A5 shows remarkable efficacy in breaking seed dormancy, a feature driving searches for "natural seed germination enhancers". Trials with stubborn-to-germinate species like tree peonies and certain medicinal herbs demonstrate 40-60% improvement in germination rates when treated with optimal GA5 concentrations. This aligns with growing consumer demand for "non-GMO plant growth solutions" in organic farming systems.

Cutting-edge research explores GIBBERELLIN A5's role in plant-microbe interactions, particularly with growth-promoting rhizobacteria. This intersection of phytohormones and soil microbiome represents a hot topic in plant science, reflected in trending searches like "how do gibberellins affect root microbiota". Preliminary data suggest GA5 may modulate symbiotic relationships that enhance nutrient uptake – a potential game-changer for low-input farming systems.

From a commercial perspective, GIBBERELLIN A5 production utilizes advanced fermentation technologies with Fusarium fujikuroi strains, though yields remain lower than for GA3. This explains frequent queries about "gibberellin A5 price per gram" and "bulk suppliers of plant hormones". The compound's crystalline form (melting point 214-216°C) and solubility characteristics (soluble in methanol, ethanol, and alkaline solutions) determine its formulation options for agricultural use.

Emerging applications in plant tissue culture have sparked interest in "gibberellin A5 for micropropagation" searches. Studies show that GA5, when combined with auxins, can improve shoot elongation in difficult-to-propagate species like woody perennials. This addresses a critical bottleneck in reforestation projects and rare plant conservation efforts – topics gaining traction amid climate change discussions.

Quality control of GIBBERELLIN A5 products involves sophisticated analytical techniques, with "HPLC analysis of gibberellins" being a common professional search term. The compound's UV absorption maxima at 206 nm and characteristic mass spectra (m/z 346 [M]+) serve as identification markers. Recent advancements in LC-MS/MS methods now enable detection at sub-ppb levels, crucial for research on endogenous GA5 levels in transgenic plants.

Regulatory status varies by region, but GIBBERELLIN A5 generally falls under biopesticide regulations rather than synthetic chemical classifications. This distinction matters for growers searching "organic-approved plant growth regulators". The compound's low mammalian toxicity (oral LD50 > 5000 mg/kg in rats) and rapid degradation contribute to its favorable safety profile, though proper application protocols remain essential.

Future research directions for GIBBERELLIN A5 focus on molecular farming applications and stress priming – concepts generating search traffic like "gibberellin crosstalk with ABA". As CRISPR-edited crops gain acceptance, understanding GA5's role in gene networks may unlock novel approaches to climate-smart agriculture. With its balanced activity profile between growth promotion and stress adaptation, GIBBERELLIN A5 continues to offer exciting possibilities for sustainable plant production systems worldwide.

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