Molecular Formula | C52H72N10O13 |
Molar Mass | 1045.19 |
Density | 1.33±0.1 g/cm3(Predicted) |
Flash Point | 11°C |
Solubility | methanol: 2 mg/mL (further dilute to 10% (v/v) methanol) |
Appearance | white powder |
pKa | 3.02±0.70(Predicted) |
Storage Condition | −20°C |
Refractive Index | 1.615 |
Physical and Chemical Properties | Solubility: methanol: 2 mg/mL (further dilute to 10% (v/v) methanol) storage conditions:? 20℃ WGK Germany:3 RTECS:30272 |
Risk Codes | R26/27/28 - Very toxic by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. R43 - May cause sensitization by skin contact R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37 - Wear suitable protective clothing and gloves. S16 - Keep away from sources of ignition. S7 - Keep container tightly closed. |
UN IDs | UN 2811 6.1/PG 1 |
WGK Germany | 3 |
RTECS | 000000030272 |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Overview | microcystins are a class of heptapeptide monocyclic hepatotoxins with biological activity. Polypeptides have multiple isomers due to differences in the composition of the two variable amino acids. Among them, the most common and most abundant are microcystin LR, microcystin RR, microcystin YR (L, R, Y represent leucine, arginine and tyrosine respectively). With water solubility and heat resistance, heating and boiling can not destroy the toxin; Water treatment process of coagulation sedimentation, filtration, chlorination, oxidation, activated carbon adsorption can not be completely removed. Soluble in water, methanol or acetone, non-volatile, resistant to pH changes, the chemical nature is quite stable, the natural degradation process is very slow. The recommended standard of microcystin in drinking water was 1.0 μg/L World Health Organization (WHO), and the content of microcystin in drinking water was limited to 1.0 μg/L in the "drinking water Health Standards" (GB5749-2006). Microcystins in water can be determined by high performance liquid chromatography and indirect competitive enzyme-linked immunosorbent assay. |