| Name | Vat Brown 72 |
| Synonyms | Brown GG Vat Brown Gg Vat Brown 72 Vat Brown 72 C.I.Vat Brown 72 Dycosthren Brown GG Mikethrene Brown GG Nihonthrene Brown GG |
| CAS | 12237-41-1 |
| Physical and Chemical Properties | Dark brown powder. Insoluble in water. Slightly soluble in xylene. In concentrated sulfuric acid was red wine, red-brown flocculent precipitation after dilution. Red-light-brown in the sodium hydrosulfite solution and yellow-brown in the acid solution. |
| purpose | reduced Brown GG is suitable for dyeing cotton fiber and direct printing of cotton fabric, with good levelness and medium affinity. It is also used for dyeing viscose fiber, silk and cotton blended fabrics, and can also be used for dyeing polyester cotton blended fabrics with disperse dyes in the same bath hot melt method. |
| production method | reduced olive R (C. 1.69005) was mixed with reduced Brown 3GR at a ratio of 72:28. |