重氮对硝基苯胺可用作染色剂。例如,在化妆品中用于酚类雌激素的快速筛查。雌激素被非法添加到多种功能性化妆品中,长期使用可能导致色素沉积、皮肤萎缩变薄,进而引发儿童性早熟、男性女性化,并可能增加患多种癌症的风险。这些隐患严重威胁人类健康。因此,《化妆品卫生规范》(2007年版)将其列为违禁物质。检测雌激素对于严格控制化妆品产品质量、确保使用安全以及政府实施有效的卫生监督和保障人民身体健康具有重要意义。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | p-nitrobenzenediazo methyl ether | 21857-39-6 | C7H7N3O3 | 181.151 |
—— | p-nitro-N-nitroso aniline | 40078-29-3 | C6H5N3O3 | 167.124 |
4-硝基苯胺 | 4-nitro-aniline | 100-01-6 | C6H6N2O2 | 138.126 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
分散橙 3 | disperse orange 3 | 730-40-5 | C12H10N4O2 | 242.237 |
—— | disperse orange 3 | 70734-98-4 | C12H10N4O2 | 242.237 |
4-硝基苯胺 | 4-nitro-aniline | 100-01-6 | C6H6N2O2 | 138.126 |
Reactions of phenyl isocyanate with 12 monosubstituted and 15 symmetrical disubstituted 1,3-diphenyltriazanes have been studied in tetrahydrofurane at 25°C. The found rate constants correlate with the Hammett substituent constants, the slopes being - 1.206 and - 1.682 in case of the monosubstituted and the disubstituted compounds, respectively. Under conditions of pseudomonomolecular reaction catalysis by the products and that by the catalysts used in reactions of isocyanates with amines or hydroxy compounds have not been observed. Rates of reactions of 6 substituted phenyl isocyanates with the parent 1,3-diphenyltriazane have also been measured. In this case the found rate constants correlate with the Hammett substituent constants, the slope being +1.038. The results indicate that the reaction involves rate limiting formation of a six-membered cyclic complex which successively undergoes only a rapid reorganization of electrons.