關於「Indigo carmine indicator」標籤，搜尋引擎有相關的訊息討論：

Indigo carmine (CI 73015), 100 g - pH Indicators - Carl Rothwww.carlroth.com › ... › Staining › Chromogenic DyesIndigo carmine | C16H8N2Na2O8S2 | CID 2723854 - PubChempubchem.ncbi.nlm.nih.gov › compound › Indigo-carmineIndigo carmine - Singapore - MIMSwww.mims.com › singapore ›