NDI; 1,5-Naphthalene Diisocyanate CAS NO.: 3173-72-6 white to light yellow flaky crystalline solid;Content:99% ... min NDI; 1,5-Naphthalene DiisocyanateCAS NO.: 3173-72-6Specification:Appearance white to light yellow flaky crystalline solid , Melting ... , aluminium foil liner inside 1,5-Naphthalene Diisocyanate(NDI) 3173-72-6