비소(As)는 회색의 부서지기 어렵지 않은 준금속 고체이다. 대부분 황화물 형태로 다양한 광물에 배합되어 있으나 일부 순수한 원소 형태로도 존재한다. 회색, 흑색, 검은색 등의 3가지 동소체가 있는데 가장 흔하고 안정적인 동소체는 회색 비소로서 금속비소 또는 알파비소라고도 부른다. 비소 및 비소화합물은 집적회로, 발광다이오드, 배터리 등의 산업분야에 사용되고 있다.
한미약품 팔팔은 이번년도 3분기 매출이 지난해동기대비 9% 떨어지기는 했으나 56억 7853만원으로 전체 발기부전 치유제 시장의 1위 자리를 굳건히 수성했다. 종근당 센돔은 지속적인 성장세가 지속되면서 올해 3분기 27억 4233만원 수입을 기록했다. 그 직후를 한미약품 구구가 바짝 잠시 뒤쫓고 있다. 구구는 올해 3분기 매출이 전년동기대비 14.8% 증가한 70억 3651만원을 기록했다.
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