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Molecular formula : C12H11N2 MW : 197.24 CAS No. :136-35-6
nature : a golden yellow sheen of squamous crystallization. 99-100 ° C melting point. Soluble in benzene, ether and thermal alcohol, do not dissolve in water. Flammable, heated to 150 ° C explosion.
Preparation : aniline with sodium nitrite, and then condensation of aniline derived.
purposes : organic synthesis intermediates. Preparation for the right-azobenzene, accession to the synthesis mixture of aniline and sodium nitrite solution, 30-40 ° C ,2.5-stirring within 3h add 30% hydrochloric acid, warming up to 50-55 ° C, nitrobenzothiazolyldiazoaminoazobenzene benzene generated by the transposition of azobenzene : As Dye Intermediates for the synthesis of dyes, disperse dyes, Oxazine dye. Benzene also nitrobenzothiazolyldiazoaminoazobenzene for foaming agent, curing agent and initiator.
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