128-94-9 Usage
Description
1,8-Diamino-4,5-dihydroxyanthraquinone is an organic compound that serves as an intermediate in the synthesis of various dyes and pigments. It is characterized by its anthraquinone structure, which features two amino groups at the 1 and 8 positions and two hydroxyl groups at the 4 and 5 positions. 1 8-DIAMINO-4 5-DIHYDROXYANTHRAQUINONE is known for its ability to form stable and vibrant dyes, making it a valuable component in the dye industry.
Uses
Used in Textile Industry:
1,8-Diamino-4,5-dihydroxyanthraquinone is used as an intermediate in the synthesis of disperse dyes for synthetic polyester fibers. These dyes are known for their excellent colorfastness, brightness, and resistance to fading, making them ideal for use in various textile applications, such as clothing, upholstery, and other fabric products.
Used in Pigment Industry:
In addition to its use in the textile industry, 1,8-diamino-4,5-dihydroxyanthraquinone can also be used as a precursor for the production of pigments. These pigments can be utilized in various applications, such as inks, paints, and coatings, to provide vibrant and long-lasting colors.
Used in Pharmaceutical Industry:
Although not explicitly mentioned in the provided materials, 1,8-diamino-4,5-dihydroxyanthraquinone may also have potential applications in the pharmaceutical industry. Its unique chemical structure could potentially be used in the development of new drugs or as a building block for the synthesis of other bioactive compounds.
Check Digit Verification of cas no
The CAS Registry Mumber 128-94-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,2 and 8 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 128-94:
(5*1)+(4*2)+(3*8)+(2*9)+(1*4)=59
59 % 10 = 9
So 128-94-9 is a valid CAS Registry Number.
InChI:InChI=1/C14H10N2O4/c15-5-1-3-7(17)11-9(5)13(19)10-6(16)2-4-8(18)12(10)14(11)20/h1-4,17-18H,15-16H2
128-94-9Relevant articles and documents
An improved practical synthesis of leuco-1,4,5,8-tetrahydroxyanthraquinone
Chang,Cheng
, p. 1893 - 1900 (1995)
Leuco-1,4,5,8-tetrahydroxyanthraquinone was prepared from chrysazin by nitration and reduction with iron powder, followed by treatment with sodium hydrosulfite in alkaline solution. This method is suitable for scaling, and is significant and improved over literature methods.
Process for the manufacture of aminohydroxyanthraquinones
-
, (2008/06/13)
The invention relates to a process for the manufacture of an aminohydroxyanthraquinone of the formula STR1 wherein both of X are hydrogen or one X is --NH2 and the other is --OH and Z is hydrogen, C1 -C4 alkyl or carboxyl, with the proviso that, if Z is C1 -C4 alkyl or carboxyl, both of X must be hydrogen, which process comprises reacting a nitroanthraquinone of the formula STR2 wherein both of Y are hydrogen or one Y is --NO2 and the other is hydrogen and Z is as defined for formula (1), with the proviso that, if Z is C1 -C4 alkyl or carboxyl, both of Y must be hydrogen, in an aprotic dipolar solvent, with an alkali metal azide or alkaline earth metal azide, in the temperature range between 0° and 30° C. The reaction products are disperse dyes or intermediates for obtaining vat dyes and disperse dyes.
