Indirubin is a chemical compound most often produced as a byproduct of bacterial metabolism. For instance, it is one of the compounds responsible for the generally benign condition purple urine bag syndrome, resulting from bacteria metabolizing indoxyl sulfate found naturally in urine.

CAS：479-41-4
中文别名：2-(2-氧代-1H-吲哚-3-亚基)-1H-吲哚-3-酮;靛玉紅;靛红;
英文别名：INDIGO RED;2H-Indol-2-one, 3-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,3-dihydro-;COUROUPITINE B;2-ylidene)-1,3-dihydro;INDIGOPURPURIN;[2,3\'-Biindolinylidene]-2\',3-dione;
分子式：C16H10N2O2
分子量：262.263
精确质量：262.074
Psa：58.2
Logp：2.9342

EINECS号：610-392-0

外观与性状：微红的-紫罗兰色粉末
密度：1.417 g/cm3
沸点：496.6ºC at 760 mmHg
闪点：207ºC
折射率：1.709
蒸汽压：5.34E-10mmHg at 25°C

安全说明：S36/37
危险类别码：R20/21/22
海关编码：2933990090

用途
有抗癌作用,临床用于治疗慢性粒细胞白血病