Dinitroso Sumatriptan / N-Nitroso Desmethyl N-Nitroso Sumatriptan 불순물은 수마트립탄 골격에서 유래한 니트로사민 관련 분해산 또는 공정 유래 불순물로, 분자식 C14H19N5O4S와 분자량 353.40 g/mol을 가진다. 명칭은 다중 N-니트로소화 위치를 시사하며, 니트로소화 조건, 산화 스트레스, 또는 탈메틸 전구체와 2차 아민 중간체를 포함하는 합성 경로에서 형성될 수 있다. 잠재적 유전독성 불순물로서 ICH M7 원칙에 따른 니트로사민 위험기반 관리 범주에 속한다. 극미량 정량에는 일반적으로 LC-MS/MS, HRMS, 그리고 이성질체를 구분하기 위한 직교 크로마토그래피가 요구된다.
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