methylene group

亚甲蓝的水溶液在氧化性环境中呈蓝色，但遇锌、氨水等还原剂会被还原成无色形态，也是一種氧化还原指示劑。 必须注意的是： 亚甲(基)蓝并无“亞甲基”（methylene group（英语：methylene group））。 亞甲藍與甲基藍（methyl blue，弱酸性染料）或甲基紫（methyl violet，又稱龍膽紫，pH指示劑）不同，應注意勿混用。

Carroll, M. F. 131. Addition of α,β-unsaturated alcohols to the active methylene group. Part I. The action of ethyl acetoacetate on linalool and geraniol

reactions of pentacyanonitrosylferrate(2−) with ligands containing acidic methylene groups. Inorganica Chimica Acta. 2006, 359 (12): 3888–3894. doi:10.1016/j

Methylazoxymethanol acetate（英语：Methylazoxymethanol acetate） 5-Methylchrysene 4,4'-Methylene bis(2-methylaniline) 4,4'-Methylenedianiline（英语：4,4'-Methylenedianiline）

any chemical with at least a perfluorinated methyl group (−CF3) or a perfluorinated methylene group (−CF2−) is a PFAS. Per- and Polyfluoroalkyl Substances