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Direct dyes

Direct Violet 51

Also known as Amanil Fast Violet BL, Sirius Violet BB, Benzo Viscose Violet BL

CAS 5489-77-0Formula C32H27N5Na2O8S2Molar mass 719.71 g/molEC 226-822-1
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Direct Violet 51 chemical structure, C32H27N5Na2O8S2, CAS 5489-77-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
5489-77-0
Formula
C32H27N5Na2O8S2
Molar mass
719.71 g/mol
EC number
226-822-1
HS code
320414
Category
Direct dyes

What is Direct Violet 51?

Plain description, key identifiers and synonyms

Direct Violet 51 is a chemical substance with the molecular formula C32H27N5Na2O8S2 and a molar mass of 719.71 g/mol. Its CAS registry number is 5489-77-0. The IUPAC name is disodium, 7-anilino-3-[[4-[(2,4-dimethyl-6-sulfonatophenyl)diazenyl]-2-methoxy-5-methylphenyl]diazenyl]-4-hydroxynaphthalene-2-sulfonate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
disodium, 7-anilino-3-[[4-[(2,4-dimethyl-6-sulfonatophenyl)diazenyl]-2-methoxy-5-methylphenyl]diazenyl]-4-hydroxynaphthalene-2-sulfonate
CAS number
5489-77-0 CAS number cross-checked
EC number
226-822-1
Molecular formula
C32H27N5Na2O8S2
UNII
Q15A781FZ0
MDL number
MFCD00003944
InChIKey
LARMRMCFZNGNNX-UHFFFAOYSA-L
InChI
InChI=1S/C32H29N5O8S2.2Na/c1-18-12-20(3)30(28(13-18)46(39,40)41)36-34-25-17-27(45-4)26(14-19(25)2)35-37-31-29(47(42,43)44)16-21-15-23(10-11-24(21)32(31)38)33-22-8-6-5-7-9-22;;/h5-17,33,38H,1-4H3,(H,39,40,41)(H,42,43,44);;/q;2*+1/p-2
SMILES (canonical and isomeric)
CC1=CC(=C(C(=C1)S(=O)(=O)[O-])N=NC2=CC(=C(C=C2C)N=NC3=C(C=C4C=C(C=CC4=C3O)NC5=CC=CC=C5)S(=O)(=O)[O-])OC)C.[Na+].[Na+]

Synonyms

  • Amanil Fast Violet BL
  • Sirius Violet BB
  • Benzo Viscose Violet BL
  • Atlantic Fast Violet FFB
  • Benzanil Fast Violet 2BL
  • C.I. Direct Violet 51 disodium salt
  • Durazol Helio B
  • Cotton Violet BB
  • Durazol Helio BP
  • Solar Violet 2B
  • Helion Violet 2B
  • Solius Violet 2B
  • C.I.Direct Violet 51
  • Eliamina Violet BL
  • Fenaluz Violet 2B
  • Sumilight Violet BB
  • Hispaluz Violet FFB
  • Solantine Violet FFB
  • C.I. Direct Violet 51, disodium salt
  • Suprexcel Violet 3BL
  • Diazol Light Violet B
  • Azine Light Violet BB
  • Direct Fast Violet BL
  • Fastusol Violet BB-CF
  • C.I. 27905
Show all 39 synonyms
  • Chrome Leather Violet BL
  • Mitsui Direct Violet 2BL
  • Triantine Light Violet BB
  • C.I. Direct Violet 51
  • Diphenyl Brilliant Violet B
  • Pontamine Fast Heliotrope B
  • Diphenyl Brilliant Violet RC
  • Pontamine Fast Heliotrope BL
  • Tetramine Fast Violet BB Extra
  • Pyrazol Brilliant Fast Violet 3B
  • Chloramine Brilliant Fast Violet 3B
  • 2-Naphthalenesulfonic acid, 3-((4-((2,4-dimethyl-6-sulfophenyl)azo)-2-methoxy-5-methylphenyl)azo)-4-hydroxy-7-(phenylamino)-, disodium salt
  • disodium, 7-anilino-3-[[4-[(2,4-dimethyl-6-sulfonatophenyl)diazenyl]-2-methoxy-5-methylphenyl]diazenyl]-4-hydroxynaphthalene-2-sulfonate
  • 2-Naphthalenesulfonic acid, 3-(2-(4-(2-(2,4-dimethyl-6-sulfophenyl)diazenyl)-2-methoxy-5-methylphenyl)diazenyl)-4-hydroxy-7-(phenylamino)-, sodium salt (1:2)

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
719.71 g/molcalc.
Exact mass
719.1096 Dacalc.
LogP (octanol/water)
1.87calc.
Topological polar surface area
205.3 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
13calc.
Rotatable bonds
9calc.
Heavy atoms
49calc.
Rings
5calc.
Aromatic rings
5calc.
Fraction sp3 carbons
0.13calc.
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

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Direct Violet 51 suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 14 suppliers
14 of 14 offers

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Where suppliers are based

14 suppliers in 2 countries

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Direct Violet 51 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

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 51 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 51 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 51, based on the data on this page

What is Direct Violet 51?

Direct Violet 51 is a chemical substance with the molecular formula C32H27N5Na2O8S2 and a molar mass of 719.71 g/mol. Its CAS registry number is 5489-77-0. The IUPAC name is disodium, 7-anilino-3-[[4-[(2,4-dimethyl-6-sulfonatophenyl)diazenyl]-2-methoxy-5-methylphenyl]diazenyl]-4-hydroxynaphthalene-2-sulfonate.

What is the CAS number of Direct Violet 51?

The CAS registry number of Direct Violet 51 is 5489-77-0.

What is the molecular formula and weight of Direct Violet 51?

The molecular formula of Direct Violet 51 is C32H27N5Na2O8S2 and its molar mass is 719.71 g/mol.

What is Direct Violet 51 used for?

Known uses and roles of Direct Violet 51 include textile dyes in textiles and leather.

Is Direct Violet 51 hazardous?

No GHS hazard classification for Direct Violet 51 is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Direct Violet 51?

Direct Violet 51 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 51?

CompoundList lists 14 suppliers of Direct Violet 51 in India and China. 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 51 in India?

12 suppliers in India list Direct Violet 51 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 51?

Suppliers quote Direct Violet 51 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

Practical guides that help when you source, ship or handle Direct Violet 51

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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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