| Names | |
|---|---|
|  IUPAC name  11-Hydroxychromeno[5,6-c]cinnolin-2-one  | |
| Other names  Necatorine  | |
| Identifiers | |
3D model (JSmol)  | |
| ChemSpider | |
 PubChem CID  | |
 CompTox Dashboard (EPA)  | |
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| Properties | |
| C15H8N2O3 | |
| Molar mass | 264.240 g·mol−1 | 
| Melting point | 220–225 °C (428–437 °F; 493–498 K) [1] | 
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards  | Mutagenic | 
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).  | |
Necatorin is a highly mutagenic chemical compound with the molecular formula C15H8N2O3. It is found in some mushrooms including Lactarius turpis (ugly milk-cap; older: L. necator), from which it was first isolated and characterized. [2] It tests positive in the Ames test, an assay for mutagenicity. [3] Crude extracts of L. necator are also highly mutagenic in a bacterial test system, and this effect it attributed to necatorin. [4]
Necatorin is present in L. necator at concentrations of 3 to 20 mg/kg, and blanching the mushroom can reduce it to about 25% of its original amount. [5] In boiling water, the chemical compound is stable except under acidic conditions (pH = 5). [5]