2,1,3-benzoselenadiazole

Melting point :74-77 °C(lit.)
Boiling point :246°C(lit.)
pka :0.51±0.33(Predicted)
form :powder to crystal
color :Light yellow to Brown to Dark green
InChI :InChI=1S/C6H4N2Se/c1-2-4-6-5(3-1)7-9-8-6/h1-4H
InChIKey :AYTPIVIDHMVGSX-UHFFFAOYSA-N
SMILES :N1=C2C=CC=CC2=N[Se]1

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501 H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P260 Do not breathe dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P314 Get medical advice/attention if you feel unwell. P391 Collect spillage. Hazardous to the aquatic environment P403+P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up. P501 Dispose of contents/container to..…