Direct dyes
- Chemicals
- 129
- Suppliers
- 213
About direct dyes
Direct dyes are water-soluble anionic dyes that dye cotton, viscose, linen and paper without a mordant. Their long, flat molecules, mostly sulfonated azo and stilbene structures, line up along cellulose chains and are held by hydrogen bonding and van der Waals forces. Colour Index names start with Direct, for example Direct Black 22 or Direct Red 81.
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Direct dyes are simple to apply and economical, so they are widely used for paper and board, cotton fabrics where top wash fastness is not needed, leather and some inks. After-treatment with cationic fixing agents improves their wet fastness. Liquid direct dyes are standard in paper mills for continuous dosing.
Specify the Colour Index name, strength, form, solubility and electrolyte tolerance, plus fastness ratings. Older benzidine based direct dyes are banned in most markets because they can release carcinogenic amines, so ask for a statement that the dye is free of restricted amines under the regulations that apply to you. Direct dyes are classified under HS subheading 3204.14.
Top direct dyes
Showing 1 to 48 of 129 chemicals, most searched and traded first.
C.I. Direct Blue 14CAS 72-57-1C34H24N6Na4O14S425 suppliers
Congo redCAS 573-58-0C32H22N6Na2O6S242 suppliers
M-PhenylenediamineCAS 108-45-2C6H8N263 suppliers
Thioflavin SCAS 1326-12-1C25H24ClN3O3S31 supplier
C.I. Direct Blue 53CAS 314-13-6C34H24N6Na4O14S415 suppliers
Diphenyl blueC34H28N6NaO14S42 suppliers![6,6'-[(3,3'-Dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[4-amino-5-hydroxy-1,3-naphthalenedisulfonic acid] chemical structure, C34H28N6O14S4, CAS 6968-33-8](/s/COXVTLYNGOIATD-UHFFFAOYSA-N.svg)
6,6'-[(3,3'-Dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[4-amino-5-hydroxy-1,3-naphthalenedisulfonic acid]CAS 6968-33-8C34H28N6O14S41 supplier
FD&C yellow 6CAS 2783-94-0C16H10N2Na2O7S225 suppliers
Sirius red F3BCAS 2610-10-8C45H26N10Na6O21S614 suppliers
Chicago Sky Blue 6BCAS 2610-05-1C34H24N6Na4O16S41 supplier
C.I. Direct Red 81 disodium saltCAS 2610-11-9C29H19N5Na2O8S221 suppliers
6,6'-((3,3'-Dimethoxy(1,1'-biphenyl)-4,4'-diyl)diazo)bis(4-amino-5-hydroxynaphthalene-1,3-disulphonic) acid, sodium saltCAS 83763-66-0C34H28N6NaO16S4+Request quotes
C.I. Direct Black 38CAS 1937-37-7C34H25N9Na2O7S29 suppliers
Direct Blue 1 acidCAS 3841-14-3C34H28N6O16S4Request quotes
C.I. Direct Brown 95CAS 16071-86-6C31H18CuN6Na2O9S3 suppliers
Direct blue 15CAS 2429-74-5C34H24N6Na4O16S414 suppliers
Direct Red 23CAS 3441-14-3C35H25N7Na2O10S225 suppliers
C.I. Direct Black 19, disodium saltCAS 6428-31-5C34H27N13Na2O7S216 suppliers
Direct Black 22CAS 6473-13-8C44H32N13Na3O11S319 suppliers
C.I. Direct Yellow 59CAS 8064-60-6C21H14N3NaO3S3Request quotes
Direct Red 12BCAS 5001-72-9C32H21N5Na2O8S215 suppliers
3-((4-Acetamidophenyl)azo)-4-hydroxy-7-((((5-hydroxy-6-(phenylazo)-7-sulpho-2-naphthyl)amino)carbonyl)amino)naphthalene-2-sulphonic acidCAS 25188-34-5C35H27N7O10S2Request quotes
4,4'-Bis((4-ethoxyphenyl)azo)stilbene-2,2'-disulphonic acidCAS 10359-84-9C30H28N4O8S2Request quotes
C.I. Direct Blue 2CAS 2429-73-4C32H21N6Na3O11S31 supplier
Direct Brown 2CAS 2429-82-5C29H19N5Na2O7S6 suppliers
Alkali resistant red darkCAS 6471-49-4C24H17N5O710 suppliers
Direct Black 3CAS 6227-04-9C26H18N5NaO4SRequest quotes
Direct Red 81 free acidCAS 25188-42-5C29H21N5O8S2Request quotes
2-Anthracenesulfonic acid, 4-((4-(acetylamino)phenyl)amino)-1-amino-9,10-dihydro-9,10-dioxo-CAS 6247-34-3C22H17N3O6SRequest quotes
Direct Blue 71CAS 4399-55-7C40H23N7Na4O13S420 suppliers
C.I. Direct Red 39CAS 6358-29-8C32H26N4Na2O8S2Request quotes
Direct yellow 4 free acidCAS 91-34-9C26H20N4O8S2Request quotes![Disodium 4-amino-3-[[4'-[(1-hydroxy-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonate chemical structure, C32H21N5Na2O7S2, CAS 2429-70-1](/s/ZWYHVBGOBINPHN-UHFFFAOYSA-L.svg)
Disodium 4-amino-3-[[4'-[(1-hydroxy-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonateCAS 2429-70-1C32H21N5Na2O7S2Request quotes
C.I. Direct Blue 6CAS 2602-46-2C32H20N6Na4O14S47 suppliers
Direct Red 75CAS 2829-43-8C33H22N8Na4O15S42 suppliers![Benzenesulfonic acid, 3-[[ethyl[4-[2-[4-[2-(3-sulfophenyl)diazenyl]-1-naphthalenyl]diazenyl]phenyl]amino]methyl]-, sodium salt (1:2) chemical structure, C31H25N5Na2O6S2, CAS 70210-06-9](/s/GYGVRMLIQVFLPE-UHFFFAOYSA-L.svg)
Benzenesulfonic acid, 3-[[ethyl[4-[2-[4-[2-(3-sulfophenyl)diazenyl]-1-naphthalenyl]diazenyl]phenyl]amino]methyl]-, sodium salt (1:2)CAS 70210-06-9C31H25N5Na2O6S255 suppliers
Direct Blue 218CAS 28407-37-6C32H20Cu2N6Na4O16S47 suppliers
Direct Green 26CAS 6388-26-7C50H33N12Na5O18S41 supplier
C.I. Direct Red 2CAS 992-59-6C34H26N6Na2O6S23 suppliers
3-(2-(4-(2-(4-(2-(6-Amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl)-6-sulfo-1-naphthalenyl)diazenyl)-1-naphthalenyl)diazenyl)-1,5-naphthalenedisulfonic acidCAS 25255-02-1C40H27N7O13S4Request quotes![1,5-Naphthalenedisulfonic acid, 3,3'-[carbonylbis[imino(2-methyl-4,1-phenylene)azo]]bis- chemical structure, C35H28N6O13S4, CAS 25738-24-3](/s/XFUDRSZJCBDNPN-UHFFFAOYSA-N.svg)
1,5-Naphthalenedisulfonic acid, 3,3'-[carbonylbis[imino(2-methyl-4,1-phenylene)azo]]bis-CAS 25738-24-3C35H28N6O13S42 suppliers
Disodium 5-((4'-((2-amino-8-hydroxy-6-sulphonato-1-naphthyl)azo)(1,1'-biphenyl)-4-yl)azo)salicylateCAS 2429-84-7C29H19N5Na2O7S1 supplier
Chlorantine Fast Red 6BLLCAS 1937-34-4C37H28N6Na4O17S43 suppliers
C.I. Direct Orange 26CAS 3626-36-6C33H22N6Na2O9S217 suppliers
C.I. Direct Black 80CAS 39384-51-5C36H23N8Na3O11S312 suppliers
Trisodium 4-hydroxy-5-((4-((1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl)azo)-5-methoxy-2-methylphenyl)azo)naphthalene-2,7-disulphonateCAS 3354-97-0C34H24N5Na3O12S31 supplier
2-Naphthalenesulfonic acid, 6-amino-3-((4-((4-aminophenyl)azo)-2-methoxy-5-methylphenyl)azo)-4-hydroxy-, monosodium saltCAS 2945-96-2C24H21N6NaO5S3 suppliers
1,3-Naphthalenedisulfonic acid, 8-(2-(4'-(2-(4-ethoxyphenyl)diazenyl)(1,1'-biphenyl)-4-yl)diazenyl)-7-hydroxy-, sodium salt (1:2)CAS 3530-19-6C30H22N4Na2O8S2Request quotes
Top suppliers of direct dyes
Manufacturers and traders with live products in this category. Paid members appear first.
HNP DYE CHEM is one of the dyes manufacturer & merchant exporters in INDIA.
Direct dyes suppliers by country
Countries with at least 5 suppliers in this category. Open one to see its manufacturers and traders.
New direct dyes from suppliers
Products recently listed by manufacturers and traders in this category.
Guides for buyers
Practical reading on grades, documents, regulation and shipping before you buy.
- Article · QualityWhat a certificate of analysis should contain
The parts of a complete COA, how to read it against your specification, the warning signs of a weak or copied certificate and how to verify results.
- Article · SourcingHow to write an RFQ that gets fast and accurate quotes
What suppliers need to quote quickly and comparably: exact product identity, quantity and packing, delivery terms, documents, samples and payment, with a ready to use template.
- Guide · Trade and logisticsIncoterms 2020 for chemical buyers
The eleven Incoterms 2020 rules from a chemical buyer's point of view, with the traps around CIF insurance, FOB for containers, EXW exports, DDP imports and dangerous goods.
Frequently asked questions
Quick answers about buying direct dyes on CompoundList.
What are direct dyes?
Water-soluble dyes with direct affinity for cotton, viscose and paper, often large sulfonated azo dyes.
How many direct dyes are listed on CompoundList?
CompoundList lists 129 chemicals in direct dyes. 213 suppliers offer products in this category.
Which direct dyes are the most popular?
The most searched and traded direct dyes on CompoundList include C.I. Direct Blue 14, Congo red, M-Phenylenediamine, Thioflavin S and C.I. Direct Blue 53. They are part of the wider dyes and pigments family.
How do I buy direct dyes in bulk?
Open a chemical to compare its suppliers, or post one buy request with the product, grade, quantity and destination. Matching suppliers send you quotes, and your contact details stay private until you accept one.