basic dyes

Basic dye, also known as basic group dyes, is the salt generated by aromatic bases reacting with acids (organic and inorganic acids), videlicet that is colored organic base salts whose basic group is generally amino, which becomes -NH2 • HCl salt groups when the salt occurs. The groups dissolve in water, dissociated into dye cations and acid anions. Thus the dye is also known as cationic dyes.

In 1856 H.W.perkin synthesized mauveine guilty basic dye, the first synthetic dye in the world. Following then it gradually emerged types of Basic Fuchsin (CI Basic Violet 14), basic blue (CI Basic Blue 9), crystal violet (CI Basic Violet 3), malachite green (CI Basic Green 4) and Rhodamine (CI basic violet 10). The chemical structure of basic dyes includes aromatic methane, triarylmethane, azo type and nitrogen-containing heterocyclic compounds (such as xanthene, oxazine and thiazine, etc.).

There are less hydrophilic groups in basic dyes so that they are insoluble in water. When we dissolve them, we use alcohol or acetic acid and then dilute with water. Basic dyes are sensitive to temperature, so that both temperature of the dissolution-dilution and dye-bath should not be too high. Basic dyes have affinity with leather surface with a negative charge so it is suitable to dye vegetable tanned leather. Mainly used for leather belt anions (vegetable tanned leather) for dyeing, its binding force is strong. It is also used for chrome tanned leather with cationic because it owns light permanency and is seldom used.

Basic dyes are organic alkali salts and when in solution, they dissociate into cations and anions pigment, so they are also known as basic group dyes. The molecular structure generally contains primary amines, secondary amines, tertiary amines or nitrogen-containing heterocyclic ring, leading to the weakly cationic in acid bath.

Basic dye tints strongly with bright shade. But the light permanency and endurance washing natures of such dyes are poor. Thus it is now rarely used for coloring fibers and mainly used for coloring paper, ribbon and biological materials and so on. Crystal Violet, rhodamine and oxazine dyes are also used as thermal dyes, sensitive dyes and dye lasers.

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Structure Chemical Name CAS MF
Basic Violet 2 Basic Violet 2 3248-91-7 C22H24ClN3
Basic Blue 11 Basic Blue 11 2185-86-6 C29H32N3.Cl
Basic Red 9 Basic Red 9 569-61-9 C19H17N3.ClH
Crystal Violet Crystal Violet 548-62-9 C25H30ClN3
Basic Blue 17 Basic Blue 17 92-31-9 C15H16ClN3S
RHODAMINE 110 RHODAMINE 110 13558-31-1 C20H15ClN2O3
ETHYL VIOLET ETHYL VIOLET 2390-59-2 C31H42ClN3
Rhodamine B Rhodamine B 81-88-9 C28H31ClN2O3
Basic Orange 14 Basic Orange 14 10127-02-3 C34H40Cl4N6Zn
Basic Red 2 Basic Red 2 477-73-6 C20H19ClN4
Basic Green 4 Basic Green 4 2437-29-8 C52H54N4O12
ACID BLUE 119 ACID BLUE 119 30586-13-1 C37H29N3O3S
Basic Red 1 Basic Red 1 989-38-8 C28H31ClN2O3
Methylene Blue Methylene Blue 61-73-4 C16H18ClN3S
Basic Green 1 Basic Green 1 633-03-4 C27H34N2O4S
AURAMINE O AURAMINE O 2465-27-2 C17H22ClN3
Basic Green 5 Basic Green 5 224967-52-6 2C16H17N4O2S.Cl4Zn
Basic Yellow 51 Basic Yellow 51 83949-75-1 C20H25N3O4S
Pigment Green 18 Pigment Green 18 569-64-2 C23H25ClN2
ASTRAZON ORANGE R ASTRAZON ORANGE R 4657-00-5 C28H27ClN2
Basic Brown 1 Basic Brown 1 10114-58-6 C18H20Cl2N8
Basic Blue  54 Basic Blue 54 15000-59-6 C18H22N4O5S2
Basic Red 51 Basic Red 51 12270-25-6 C13H18ClN5
Basic Blue 26 Basic Blue 26 2580-56-5 C33H32N3.Cl
methyl 1-methyl-4-[(methylphenylhydrazono)methyl]pyridinium sulphate         methyl 1-methyl-4-[(methylphenylhydrazono)methyl]pyridinium sulphate 68259-00-7 C15H19N3O4S
Crystal Violet Nonahydrate [Ion association reagent for spectrophotometric analysis] Crystal Violet Nonahydrate [Ion association reagent for spectrophotometric analysis] 60662-33-1 C25H48ClN3O9
Basic Violet 11 Basic Violet 11 2390-63-8 C30H35ClN2O3
Basic Blue  62 Basic Blue 62 12221-36-2
Basic Blue 162 Basic Blue 162 15085-91-3 C20H23N5O5S2
2-[[4-(dimethylamino)phenyl]azo]-1,3-dimethyl-1H-imidazolium chloride 2-[[4-(dimethylamino)phenyl]azo]-1,3-dimethyl-1H-imidazolium chloride 77061-58-6 C13H18ClN5
Basic Dyestuff Basic Dyestuff
PIGMENT VIOLET 3 PIGMENT VIOLET 3
Basic Orange 2 Basic Orange 2 532-82-1 C12H13ClN4
BISMARCK BROWN B BISMARCK BROWN B C18H18N8
Basic Red  49 Basic Red 49 12270-23-4
Basic Yellow  29 Basic Yellow 29 39279-59-9 C13H17ClN6O2
Basic Black Basic Black
BISMARCK BROWN R BISMARCK BROWN R 5421-66-9 C21H26Cl2N8
BASIC BLUE 3 BASIC BLUE 3 73570-52-2 C20H26ClN3O
Basic Brown   1 Basic Brown 1 8052-76-4
Basic Blue 7 Basic Blue 7 2390-60-5 C33H40N3.Cl
BASIC RED 15 BASIC RED 15 C25H29Cl2N3
Basic Blue  53 Basic Blue 53 11075-20-0 C17H17I3N4SZn
Basic Yellow 24 Basic Yellow 24 52435-14-0 C19H21N5O4S2
C.I.Basic Blue 26 C.I.Basic Blue 26
FUCHSIN BASIC FUCHSIN BASIC 632-99-5 C20H20ClN3
Toluidine bule Toluidine bule 3209-30-1 C28H20N2Na2O10S2
Basic Red 54 Basic Red 54 12270-28-9
Basic Yellow  49 Basic Yellow 49 55777-80-5 C14H17ClN4O
CI 42500 CI 42500 25620-78-4 C19H19N3O
2 BASIC ORANGE 2 2 BASIC ORANGE 2
CRYSTAL VIOLET CRYSTAL VIOLET 39393-39-0 C25H30ClN3
LIGNIN, ALKALI LIGNIN, ALKALI 8068-05-1 C30H25ClN6
Basic Yellow  87 Basic Yellow 87 116844-55-4
Basic Scarlet G Basic Scarlet G
High alkali washing agent High alkali washing agent
1-amino-4-[[4-[(dimethylamino)methyl]phenyl]amino]anthraquinone monohydrochloride  1-amino-4-[[4-[(dimethylamino)methyl]phenyl]amino]anthraquinone monohydrochloride 67905-56-0 C23H22ClN3O2
28 BASIC YELLOW 28 28 BASIC YELLOW 28 74504-47-5
BASIC RED 46 BASIC RED 46 12221-69-1 C18H21BrN6
Basic Orange Piece Basic Orange Piece
MALACHITE GREEN OXALATE MALACHITE GREEN OXALATE 13425-25-7 C52H54N4O12
[2-[[4-[(2-chloro-4-nitrophenyl)azo]phenyl]ethylamino]ethyl]trimethylammonium [2-[[4-[(2-chloro-4-nitrophenyl)azo]phenyl]ethylamino]ethyl]trimethylammonium 14097-03-1 C19H25ClN5O2+
4 BASIC GREEN 4 4 BASIC GREEN 4
BismarkbrownG BismarkbrownG 8005-77-4 C18H18N8
Basic Fruit Green Basic Fruit Green
Magentagreencrystals Magentagreencrystals 14426-28-9 2C23H25N2.HC2O4.2C2H2O4
Basic Violet 11 Basic Violet 11
CATIONIC GREEN MELACHITE CATIONIC GREEN MELACHITE
Basic Brown RC Basic Brown RC
Basic Brown GN Basic Brown GN
Basic Dyestuff Basic Dyestuff
Aizen Aizen
Basic Blue  57 Basic Blue 57 12221-31-7
2-[3-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)prop-1-enyl]-1,3,3-trimethyl-3H-indolium chloride  2-[3-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)prop-1-enyl]-1,3,3-trimethyl-3H-indolium chloride 6320-14-5 C25H29N2+
2-[(4-aminophenyl)azo]-1,3-dimethyl-1H-imidazolium chloride          2-[(4-aminophenyl)azo]-1,3-dimethyl-1H-imidazolium chloride 97404-02-9 C11H14ClN5
C.I.Basic Yellow 96 C.I.Basic Yellow 96
Basic Red 1:1 Basic Red 1:1 3068-39-1 C27H29ClN2O3
CI NO 46040 CI NO 46040 4215-95-6 C16H18ClN3
METHYL VIOLET METHYL VIOLET 603-47-4 C24H28ClN3
Basic Red  22 Basic Red 22 12221-52-2 C15H21IN6
3(or5)-[[4-[benzylmethylamino]phenyl]azo]-1,2(or1,4)-dimethyl-1H-1,2,4-triazolium bromide         3(or5)-[[4-[benzylmethylamino]phenyl]azo]-1,2(or1,4)-dimethyl-1H-1,2,4-triazolium bromide 89959-98-8 C18H21N6.Br
Alkaline Peptone Water Alkaline Peptone Water
SOLVENT GREEN 1 SOLVENT GREEN 1 510-13-4 C23H26N2O
Basic Violet 11:1 Basic Violet 11:1 73398-89-7 C58H66Cl4N4O6Zn
1-amino-4-[[4-[(dimethylamino)methyl]phenyl]amino]anthraquinone 1-amino-4-[[4-[(dimethylamino)methyl]phenyl]amino]anthraquinone 12217-43-5 C23H21N3O2
2-[7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl]-1,3-dimethyl-1H-benzimidazolium chloride        2-[7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl]-1,3-dimethyl-1H-benzimidazolium chloride 29556-33-0 C22H24ClN3O2
18 BASIC RED 18 18 BASIC RED 18
Alkaline Agar Alkaline Agar
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