Alpha-hydro-omega-hydroxypoly[sulfanediyl(3-sulfanyl-8-oxooctane-1,8-diyl)] (mixture of thioctic acid polymers)
약전 동의어
N/A
Other Synonyms
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설명
Thioctic Acid EP Impurity B는 리포산의 분해 및 공정 유래 중합과 연관된 수화된 황 함유 올리고머성 종을 의미한다. 경험식은 H2O[C8H14OS2]n이며, 반복단위 질량은 190.33 n, 말단 물 성분은 18.02이다. 따라서 단일 화합물이라기보다 고차 올리고머의 군으로 해석하는 것이 타당하다. 생성 경로는 제조 또는 저장 중의 산화, 열적 변성, 황 매개 결합 반응과 일치한다. 특성 규명과 정량에는 LC-MS/MS, 고분해능 LC-MS, 휘발성이 허용되는 경우 GC-MS가 필요하며, 티옥트산 단량체 및 관련 황 불순물과의 크로마토그래피 분리가 중요하다.
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