Description

28-Homobrassinolide (CAS No. 74174-44-0) is a highly bioactive brassinosteroid analog with the molecular formula C₂₉H₅₀O₆. This plant growth regulator is renowned for its potent physiological effects, enhancing cell division, elongation, and stress resistance in plants. As a derivative of brassinolide, it exhibits superior stability and efficacy in agricultural applications, making it ideal for research in plant physiology, crop enhancement, and stress mitigation studies. Available in high-purity formulations, this compound is suitable for laboratory use, greenhouse trials, and field applications. Its well-characterized structure ensures reproducibility in experiments, while its low toxicity profile aligns with sustainable agricultural practices.

Properties

• CAS Number: 74174-44-0
• Complexity: 770
• IUPAC Name: (1S,2R,4R,5S,7S,11S,12S,15R,16S)-15-[(1S,2R,3R,4S)-4-ethyl-2,3-dihydroxy-1,5-dimethyl-hexyl]-4,5-dihydroxy-2,16-dimethyl-9-oxatetracyclo[9.7.0.02,7.012,16]octadecan-8-one
• InChI: InChI=1S/C29H50O6/c1-7-17(15(2)3)26(33)25(32)16(4)19-8-9-20-18-14-35-27(34)22-12-23(30)24(31)13-29(22,6)21(18)10-11-28(19,20)5/h15-26,30-33H,7-14H2,1-6H3/t16-,17-,18-,19+,20-,21-,22+,23-,24+,25+,26+,28+,29+/m0/s1
• InChI Key: HJIKODJJEORHMZ-NNPZUXBVSA-N
• Exact Mass: 494.36073931
• Molecular Formula: C29H50O6
• Molecular Weight: 494.7
• SMILES: CC[C@H]([C@H]([C@@H]([C@@H](C)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2COC(=O)[C@@H]4[C@@]3(C[C@H]([C@H](C4)O)O)C)C)O)O)C(C)C
• Topological: 107
• Monoisotopic Mass: 494.36073931
• Synonyms: 28-homobrassinolide, 82373-95-3, Brassinolide-ethyl, 74174-44-0, (22R,23R)-28-Homo Brassinolide, (1S,2R,4R,5S,7S,11S,12S,15R,16S)-15-[(2S,3R,4R,5S)-5-ethyl-3,4-dihydroxy-6-methylheptan-2-yl]-4,5-dihydroxy-2,16-dimethyl-9-oxatetracyclo[9.7.0.02,7.012,16]octadecan-8-one, P301F2094N, 6H-Benz(C)indeno(5,4-E)oxepin-6-one, 1-((1S,2R,3R,4S)-4-ethyl-2,3-dihydroxy-1,5-dimethylhexyl)hexadecahydro-8,9-dihydroxy-10a,12a-dimethyl-, (1R,3aS,3bS,6aS,8S,9R,10aR,10bS,12aS)-, UNII-P301F2094N, SCHEMBL644674, (22R,23R)-homobrassinolide, CHEMBL1801924, CHEBI:180809, DTXSID901315552, HY-N9435, AC-34982, DA-69729, FH158168, PD200071, CS-0168966, Q27286050, B-Homo-7-oxastigmastan-6-one, 2,3,22,23-tetrahydroxy-, (2alpha,3alpha,5alpha)-

28-Homobrassinolide is widely used in plant science research to study brassinosteroid signaling pathways and their role in growth regulation. It enhances crop yield by improving stress tolerance against drought, salinity, and extreme temperatures. Applied in nanomolar concentrations, it promotes root development and photosynthetic efficiency in model plants and commercial crops. Researchers also utilize it to investigate hormonal cross-talk with auxins and gibberellins.

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