Anthraquinone, 1-methylamino

Electron-donating groups (amino, methylamino, hydroxy, methoxy) in the 2-position, on the other hand, are extremely undesirable because, unlike similar substituents in the 1,4-positions, they are unable to form intramolecular hydrogen bonds with the keto groups of anthraquinone and hence are highly susceptible to photo-oxidation [167]. 

Dyes are used to produce colored smokes. 1-methylamino anthraquinone is used to produce red color whereas auramine hydrochloride is used to produce yellow color. 

Note 1-MA dye is 96% pure 1-methylamino-anthraquinone Vistac No 1 is low mol wt polybutene DOS is dioctylsebacate... 

Di (methylamino)-tetranitroanthraquinone see Tetranitro-bis (methyiamino)-anthraquinone 2B149... 

The more intensely colored 1,4-naphthoquinones with amino and/or hydroxyl groups in the 5- and 8-positions are analogous to the commercial anthraquinone dyes, but are generally more bathochromic [10], For example, 5-methylamino-1,4-naphthoquinone has Xmax 529 nm in cyclohexane, whereas 1-methylaminoanthraquinone has Xmax 495 nm. This is also true for the 5,8-disubstituted naphthoquinones, but this potential advantage has not proved of commercial significance, and few such compounds have been considered as textile dyes. An exception is 5-amino-2,3-dichloro-8-hydroxy-l,4-naphthoquinone (4) [68217-33-4], which has been claimed as a violet disperse dye for acetate fibers [14], Naphthazarin (1) is an example of a 5,8-disubstituted naphthoquinone of greater value as an intermediate than as a dyes. 

SYNS 9,10-ANTHRACENEDIONE, l-BROMO-4-(METHYLAMINO)- ANTHRAQUINONE, l-BROMO-4-(METHYLAMINO)- l-METHYLAMINO-4-BROMANTHRACHINON l-(METHYLAMINO)-4-BROMOANTHRAQUINONE... 

Cl5H10BrNO2 1-bromo-4-(methylamino)anthraquinone 128-93-8 25.00 1.5215 2 28125 C15H11N303 1,3-dihydro-7-nitro-5-phenyl-2H-1,4-benzodia 146-22-5 25.00 1.3617 2... 

METHYL AMINO-4-BROMOAWTHRAQUINONE (Anthraquinone, l-methylamino-4-bromo-)... 

A -butylaniline A -butylmorpholine 1 -(Methylamino)-9,19-anthraquinone 2,2-(Dimethylamino)-9,19-anthraquinone... 

Aminoanthraquinone is obtained in exactly the same way.355h Analogous directions for preparation of l-(methylamino)anthraquinone in Organic Syntheses prescribe sodium chlorate as oxidizing agent.1197... 

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