Microcystin-LR
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Microcystin-LR (MC-LR) is a toxin produced by cyanobacteria. It is the most toxic of the microcystins.
Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
(5R,8S,11R,12S,15S,18S,19S,22R)-15-[3-(diaminomethylideneamino)propyl]-18-[(1E,3E,5S,6S)-6-Methoxy-3,5-dimethyl-7-phenylhepta-1,3-dienyl]-1,5,12,19-tetramethyl-2-methylidene-8-(2-methylpropyl)-3,6,9,13,16,20,25-heptaoxo-1,4,7,10,14,17,21-heptazacyclopentacosane-11,22-dicarboxylic acid | |
Other names
5-L-Arginine-microcystin LA | |
Identifiers | |
3D model (JSmol) |
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Abbreviations | MC-LR, MCYST-LR |
ChEBI | |
ChEMBL | |
ChemSpider |
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ECHA InfoCard | 100.150.186 |
EC Number |
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KEGG | |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C49H74N10O12 | |
Molar mass | 995.189 g·mol−1 |
Appearance | White solid |
Density | 1.299 g/cm3 |
Solubility in ethanol | 1 mg/mL |
log P | -1.44 |
Pharmacology | |
Ingestion | |
Hazards | |
GHS labelling: | |
Danger | |
H300, H310, H315, H317, H319, H335 | |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
5 mg/kg |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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