Okadaic acid ammonium salt from Prorocentrum concavum
SIGMA/O8010 - ≥90% (HPLC), solid
Synonym: OA
CAS Number: 155716-06-6
Empirical Formula (Hill Notation): C44H68O13 · NH3
Molecular Weight: 822.03
MDL Number: MFCD00153856
Linear Formula: C44H68O13 · NH3
Product Type: Chemical
| assay | ≥90% (HPLC) |
| biological source | plant (Prorocentrum concavum) |
| color | white |
| form | solid |
| InChI | 1S/C44H68O13.H3N/c1-25-21 |
| InChI key | ZBOMSHVRJSJGNR-JBNKPAQWSA |
| Quality Level | 200 ![]() |
| SMILES string | [H][N+]([H])([H])[H].[H][ |
| solubility | DMSO: soluble |
| ethanol: soluble | |
| H2O: 0.1 mg/mL | |
| storage temp. | −20°C |
| Biochem/physiol Actions: | Dinoflagellate toxin and an ionophore-like polyether derivative of a 38 carbon, fatty acid. Readily enters cells. Inhibitor of type 1 and type 2A protein phosphatases. Does not inhibit tyrosine phosphatases, alkaline phosphatases or acid phosphatase. Known tumor promotor. Used to study various cellular processes including cell cycle, apoptosis, nitric oxide metabolism and calcium signaling. |
| Biochem/physiol Actions: | Okadaic acid is a dinoflagellate toxin and an ionophore-like polyether derivative of a 38 carbon, fatty acid. |
| Symbol | GHS06 |
| Signal word | Danger |
| Hazard statements | H301 + H311 + H331 - H315 |
| Precautionary statements | P261 - P264 - P280 - P301 + P310 - P302 + P352 + P312 - P304 + P340 + P311 |
| Hazard Codes | T |
| Risk Statements | 23/24/25-38 |
| Safety Statements | 22-26-36/37/39-45 |
| RIDADR | UN 2811 6.1 / PGIII |
| WGK Germany | WGK 3 |
| Purity | ≥90% (HPLC) |
| Storage Temp. | −20°C |
| UNSPSC | 12352106 |


