H412：Harmful to aquatic life with long lasting effects
Precautionary statements
P264：Wash hands thoroughly after handling.
P264：Wash skin thouroughly after handling.
P270：Do not eat, drink or smoke when using this product.
P273：Avoid release to the environment.
P301+P312：IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P501：Dispose of contents/container to..…
Description
tert-butyl 1-oxa-5-azaspiro[2.4]heptane-5-carboxylate is ureful reactant for the synthesis of spirocyclic-?3,?4-?dihydro-?2H-?benzo[b]?[1,?4]?oxazine derivatives.
![1-OXA-5-AZASPIRO[2.4]HEPTANE-5-CARBOXYLIC ACID, 1,1-DIMETHYLETHYL ESTER](https://www.chemicalbook.com/CAS/GIF/301226-25-5.gif)
