... 99.0% min 4. names:Dichlone . 5.C10H4Cl2O2 2,3-Dichloro-1,4-naphthoquinone(AURORA KA-5010;Dichloronaphthoquinone; ... Cas:117-80-6Purity: 99.0% minOther names: 2,3 Dichloro 1,4 Napthoquinone.Molucular Formula: 227. ... Point: 190-191 DCBoiling Point: 275 DC at 2 mm HgAsh Content: 0.5 % max2.physical property ... -197 °C(lit.)boiling point|:275 °C (2 mmHg)flash(ing) point:275°C/2mmWater dissolubility: ...