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Direct dyes

Direct Violet 9

Also known as C.I. Direct Violet 9, disodium salt, Direct fast violet BK, Direct violet mb

CAS 6227-14-1Formula C30H23N5Na2O8S2Molar mass 691.66 g/molEC 228-326-0
GHS signal word: Warning. Pictograms: Harmful or irritant 15 suppliers listed
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Direct Violet 9 chemical structure, C30H23N5Na2O8S2, CAS 6227-14-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
6227-14-1
Formula
C30H23N5Na2O8S2
Molar mass
691.66 g/mol
EC number
228-326-0
HS code
320414
Category
Direct dyes

What is Direct Violet 9?

Plain description, key identifiers and synonyms

Direct Violet 9 is a chemical substance with the molecular formula C30H23N5Na2O8S2 and a molar mass of 691.66 g/mol. Its CAS registry number is 6227-14-1. The IUPAC name is disodium, 7-anilino-4-hydroxy-3-[[2-methoxy-5-methyl-4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]naphthalene-2-sulfonate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
disodium, 7-anilino-4-hydroxy-3-[[2-methoxy-5-methyl-4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]naphthalene-2-sulfonate
CAS number
6227-14-1 CAS number cross-checked
EC number
228-326-0
Molecular formula
C30H23N5Na2O8S2
UNII
1PW59JQ3LX
InChIKey
WXYONRHRWMFURG-UHFFFAOYSA-L
InChI
InChI=1S/C30H25N5O8S2.2Na/c1-18-14-26(27(43-2)17-25(18)33-32-21-8-11-23(12-9-21)44(37,38)39)34-35-29-28(45(40,41)42)16-19-15-22(10-13-24(19)30(29)36)31-20-6-4-3-5-7-20;;/h3-17,31,36H,1-2H3,(H,37,38,39)(H,40,41,42);;/q;2*+1/p-2
SMILES (canonical and isomeric)
CC1=CC(=C(C=C1N=NC2=CC=C(C=C2)S(=O)(=O)[O-])OC)N=NC3=C(C=C4C=C(C=CC4=C3O)NC5=CC=CC=C5)S(=O)(=O)[O-].[Na+].[Na+]

Synonyms

  • C.I. Direct Violet 9, disodium salt
  • Direct fast violet BK
  • Direct violet mb
  • Pergasol violet bn
  • Pergasol violet bn-z
  • Direct brilliant violet b
  • Brilliant paper violet 2bp
  • Duasyn acid direct violet b
  • Brilliant benzo violet ba-cf
  • 2-Naphthalenesulfonic acid, 4-hydroxy-3-((2-methoxy-5-methyl-4-((4-sulfophenyl)azo)phenyl)azo)-7-(phenylamino)-, disodium salt
  • C.I. 27885
  • Disodium 4-hydroxy-3-((2-methoxy-5-methyl-4-((4-sulphonatophenyl)azo)phenyl)azo)-7-(phenylamino)naphthalene-2-sulphonate
  • Disodium 4-hydroxy-3-[[2-methoxy-5-methyl-4-[(4-sulphonatophenyl)azo]phenyl]azo]-7-(phenylamino)naphthalene-2-sulphonate
  • 1-Hydroxy-6-(phenylamino)-2-((4-((4-(sodiooxysulfonyl)phenyl)azo)-2-methoxy-5-methylphenyl)azo)naphthalene-3-sulfonic acid sodium salt
  • 2-Naphthalenesulfonic acid, 4-hydroxy-3-((E)-2-(2-methoxy-5-methyl-4-((E)-2-(4-sulfophenyl)diazenyl)phenyl)diazenyl)-7-(phenylamino)-, sodium salt (1:2)
  • 2-Naphthalenesulfonic acid, 4-hydroxy-3-[[2-methoxy-5-methyl-4-[(4-sulfophenyl)azo]phenyl]azo]-7-(phenylamino)-, disodium salt
  • 4-Hydroxy-3-((2-methoxy-5-methyl-4-((4-sodiooxysulfonylphenyl)azo)phenyl)azo)-7-(phenylamino)-2-naphthalenesulfonic acid sodium salt
  • 7-Anilino-4-hydroxy-3-(2-methoxy-5-methyl-4-(4-sulfophenylazo)phenylazo)naphthalene-2-sulfonic acid disodium salt
  • Disodium 7-anilino-3-((2-methoxy-5-methyl-4-((4-sulfonatophenyl)diazenyl)phenyl)hydrazinylidene)-4-oxonaphthalene-2-sulfonate
  • Disodium 7-anilino-4-hydroxy-3-((E)-(2-methoxy-5-methyl-4-((E)-(4-sulfonatophenyl)diazenyl)phenyl)diazenyl)-2-naphthalenesulfonate
  • 2-Naphthalenesulfonic acid, 4-hydroxy-3-2-methoxy-5-methyl-4-(4-sulfophenyl)azophenylazo-7-(phenylamino)-, disodium salt
  • C.i. direct violet 9
  • disodium, 7-anilino-4-hydroxy-3-[[2-methoxy-5-methyl-4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]naphthalene-2-sulfonate
  • Disodium 4-hydroxy-3-2-methoxy-5-methyl-4-(4-sulphonatophenyl)azophenylazo-7-(phenylamino)naphthalene-2-sulphonate
  • Disodium 7-anilino-4-hydroxy-3-[(E)-{2-methoxy-5-methyl-4-[(E)-(4-sulfonatophenyl)diazenyl]phenyl}diazenyl]naphthalene-2-sulfonate

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
691.66 g/molcalc.
Exact mass
691.0783 Dacalc.
LogP (octanol/water)
1.25calc.
Topological polar surface area
205.3 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
13calc.
Rotatable bonds
9calc.
Heavy atoms
47calc.
Rings
5calc.
Aromatic rings
5calc.
Fraction sp3 carbons
0.07calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
3calc.
Lipinski rule of five
Fails (2 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccc(N=Nc2ccc(N=Nc3ccc4cc(Nc5ccccc5)ccc4c3)cc2)cc1

c1ccc(N=Nc2ccc(N=Nc3ccc4cc(Nc5ccccc5)ccc4c3)cc2)cc1

5 rings, 33 atoms.

18 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
Precautionary statements (5)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Direct Violet 9 suppliers

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Where suppliers are based

15 suppliers in 3 countries

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Direct Violet 9 price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Industries and functions

Functional uses

  • Dye

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Direct Violet 9 is traded under.

HS 3204.14Indicative HS code

Direct dyes and preparations based thereon

World exports in 2024
$328M
−1.5% vs 2023, imports $336M
2019 to 2024
Top exporters
  1. India * partner reported34.9%
  2. China11.3%
  3. Spain9.0%
Top importers
  1. Italy9.8%
  2. Germany8.7%
  3. Netherlands7.8%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Direct Violet 9 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Direct Violet 9, based on the data on this page

What is Direct Violet 9?

Direct Violet 9 is a chemical substance with the molecular formula C30H23N5Na2O8S2 and a molar mass of 691.66 g/mol. Its CAS registry number is 6227-14-1. The IUPAC name is disodium, 7-anilino-4-hydroxy-3-[[2-methoxy-5-methyl-4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]naphthalene-2-sulfonate.

What is the CAS number of Direct Violet 9?

The CAS registry number of Direct Violet 9 is 6227-14-1.

What is the molecular formula and weight of Direct Violet 9?

The molecular formula of Direct Violet 9 is C30H23N5Na2O8S2 and its molar mass is 691.66 g/mol.

What is Direct Violet 9 used for?

Known uses and roles of Direct Violet 9 include textile dyes in textiles and leather and dye.

Is Direct Violet 9 hazardous?

Direct Violet 9 carries the GHS signal word "Warning". Main hazards: harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Direct Violet 9?

Direct Violet 9 is usually classified under HS code 320414 (Direct dyes and preparations based thereon). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Direct Violet 9?

CompoundList lists 15 suppliers of Direct Violet 9 in India, China and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Direct Violet 9 in India?

11 suppliers in India list Direct Violet 9 on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Direct Violet 9?

Suppliers quote Direct Violet 9 on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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