Brassinolide-ethyl |
Last updated: 25/05/2024 |
(Also known as: ethyl-brassinolide; 28-homobrassinolide; homobrassinolide) |
Data alerts |
The following alerts are based on the data in the tables below. An absence of an alert does not imply the substance has no implications for human health, biodiversity or the environment but just that we do not have the data to form a judgement.
Environmental fate | Ecotoxicity | Human health |
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  |   | Warning: Significant data are missing |
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A biologically active steroidal lactone first isolated from rape pollen that stimulates growth of green plant tissues. | |
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Growth | |
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Appless; Pears; Citrus; Rice; Wheat; Corn; Tomatoes: Cucumber: Lettuce | |
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Current | |
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2010, first registered USA | |
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UK regulatory status |
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Not approved | ||
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Not applicable | ||
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No UK approval for use |
EC Regulation 1107/2009 (repealing 91/414) |
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Additional information |
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Chemical structure |
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Brassinolide itself, is a complex molecule with 13 chiral centres. It is the R-isomers of brassinosteroids that are, in general, more biologically active. | |
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C₂₉H₅₀O₆ | |
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CCC(C(C)C)C(C(C(C)C1CCC2C1(CCC3C2COC(=O)C4C3(CC(C(C4)O)O)C)C)O)O | |
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CC[C@@H](C(C)C)C(C([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 | |
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HJIKODJJEORHMZ-OZXIRSPGSA-N | |
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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 | |
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Yes |
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Common Name | Relationship | Link |
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brassinolide monohydrate | Parent |
General status |
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Plant Growth Regulator, Other substance | |
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Plant activator | |
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Plant hormone; Plant activator; Plant-derived substance | |
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Natural | |
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Oligodynamic and rapid, affects specific target tissues that are sensitive to the plant hormone indole-3-acetic acid (IAA) | |
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A biologically active steroidal lactone first isolated from rape (Brassica nauous L.) pollen | |
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A related sterol is reduced by enzyme DET2 and the oxidised with cytochrome P-450 enzyme | |
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Yield enhancement | |
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Appless; Pears; Citrus; Rice; Wheat; Corn; Tomatoes: Cucumber: Lettuce | |
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74174-44-0 | |
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067700 | |
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11038340 | |
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494.73 | |
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(22R,23R,24S)-2α,3α,22,23-tetrahydroxy-7-oxa-7a,23a-dihomo-5α-ergostan-6-one | |
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(1S,2R,4R,5S,7S,11S,12S,15R,16S)-15-[(2S,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 | |
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(1R,3aS,3bS,6aS,8S,9R,10aR,10bS,12aS)-1-[(1S,2R,3R,4S)-4-ethyl-2,3-dihydroxy-1,5-dimethylhexyl]hexadecahydro-8,9-dihydroxy-10a,12a-dimethyl-6H-benz[c]indeno[5,4-e]oxepin-6-one | |
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Formulations |
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Often supplied as a water soluble powder |
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Degradation |
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As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below. | ||||||||||
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Soil adsorption and mobility |
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Known metabolites |
None
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Terrestrial ecotoxicology |
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Aquatic ecotoxicology |
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General |
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Health issues |
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May be harmful by inhalation, ingestion or skin absorption. |
Handling issues |
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No information available | |||
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Not listed (Not listed) | |||
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brassinolide-ethyl | ||
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Record last updated: | 25/05/2024 |
Contact: | aeru@herts.ac.uk |
Please cite as: | Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal, 22(4), 1050-1064. DOI: 10.1080/10807039.2015.1133242 |