- As3 a.k.a. Arsenide: In chemistry, an arsenide is a compound of arsenic with a less electronegative element or elements. Most metals form arsenides. There are a large number of different stoichiometries and in this respect arsenides are similar to phosphides, borides, silicides and nitrides. The group 1 alkali metals and the group 2, alkaline earth metals, form arsenides with isolated arsenic atoms which can be considered to be the As3– anion, for example heating arsenic powder with excess sodium gives sodium arsenide. The As3– ion is formed by the reduction of arsenic by three electrons. The structure of Na₃As is complex with unusually short Na–Na distances of 328–330 pm which are shorter than in sodium metal, and this is indicates that even with these electropositive metals the bonding cannot be straightforward ionic. The compound LiAs, has a metallic lustre and electrical conductivity indicating some metallic bonding.
- AS3, RFC 4823, is a standard by which vendor applications communicate over the Internet using File Transfer Protocol. It is an EDI protocol.
- As3 a.k.a. androgen-induced proliferation inhibitor is a gene.
- also known as androgen induced inhibitor of proliferation, androgen-induced prostate proliferative shutoff associated protein, androgen-induced shutoff 3, OTTHUMP00000042414
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