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Direct dyes

Direct black-154

Also known as Direct black 154, 2,7-Naphthalenedisulfonic acid, 4-amino-3-((4'-((2,4-diaminophenyl)azo)-3,3'-dimethyl(1,1'-biphenyl)-4-yl)azo)-5-hydroxy-6-(phenylazo)-, disodium salt, 2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4'-[(2,4-diaminophenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)-, disodium salt

CAS 37372-50-2Formula C36H29N9Na2O7S2Molar mass 809.80 g/molEC 259-355-7
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Direct black-154 chemical structure, C36H29N9Na2O7S2, CAS 37372-50-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
37372-50-2
Formula
C36H29N9Na2O7S2
Molar mass
809.80 g/mol
EC number
259-355-7
HS code
320414
Category
Direct dyes

What is Direct black-154?

Plain description, key identifiers and synonyms

Direct black-154 is a chemical substance with the molecular formula C36H29N9Na2O7S2 and a molar mass of 809.80 g/mol. Its CAS registry number is 37372-50-2. The IUPAC name is disodium, 4-amino-3-[[4-[4-[(2,4-diaminophenyl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]-5-hydroxy-6-phenyldiazenylnaphthalene-2,7-disulfonate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
disodium, 4-amino-3-[[4-[4-[(2,4-diaminophenyl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]-5-hydroxy-6-phenyldiazenylnaphthalene-2,7-disulfonate
CAS number
37372-50-2Other or deprecated CAS: 54804-85-2
EC numbers
259-355-7, 609-420-4
Molecular formula
C36H29N9Na2O7S2
InChIKey
DHQJMKJYFOHOSY-UHFFFAOYSA-L
InChI
InChI=1S/C36H31N9O7S2.2Na/c1-19-14-21(8-11-27(19)41-43-29-13-10-24(37)18-26(29)38)22-9-12-28(20(2)15-22)42-44-34-30(53(47,48)49)16-23-17-31(54(50,51)52)35(36(46)32(23)33(34)39)45-40-25-6-4-3-5-7-25;;/h3-18,46H,37-39H2,1-2H3,(H,47,48,49)(H,50,51,52);;/q;2*+1/p-2
SMILES (canonical and isomeric)
CC1=C(C=CC(=C1)C2=CC(=C(C=C2)N=NC3=C(C=C4C=C(C(=C(C4=C3N)O)N=NC5=CC=CC=C5)S(=O)(=O)[O-])S(=O)(=O)[O-])C)N=NC6=C(C=C(C=C6)N)N.[Na+].[Na+]

Synonyms

  • Direct black 154
  • 2,7-Naphthalenedisulfonic acid, 4-amino-3-((4'-((2,4-diaminophenyl)azo)-3,3'-dimethyl(1,1'-biphenyl)-4-yl)azo)-5-hydroxy-6-(phenylazo)-, disodium salt
  • 2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4'-[(2,4-diaminophenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)-, disodium salt
  • 4-Amino-3-((4'-((2,4-diaminophenyl)azo)(1,1'-biphenyl-3,3'-dimethyl)-4-yl)azo)-5-hydroxy-6-(phenylazo)-2,7-naphthalenedisulfonic acid, disodium salt
  • disodium, 4-amino-3-[[4-[4-[(2,4-diaminophenyl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]-5-hydroxy-6-phenyldiazenylnaphthalene-2,7-disulfonate
  • C.I. Direct Black 154
  • Disodium 4-amino-3-((4'-((2,4-diaminophenyl)azo)-3,3'-dimethyl(1,1'-biphenyl)-4-yl)azo)-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate
  • Disodium 4-amino-3-({4'-[(2,4-diaminophenyl)diazenyl]-3,3'-dimethyl[1,1'-biphenyl]-4-yl}diazenyl)-5-hydroxy-6-(phenyldiazenyl)naphthalene-2,7-disulfonate

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
809.80 g/molcalc.
Exact mass
809.1427 Dacalc.
LogP (octanol/water)
2.64calc.
Topological polar surface area
286.9 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
16calc.
Rotatable bonds
9calc.
Heavy atoms
56calc.
Rings
6calc.
Aromatic rings
6calc.
Fraction sp3 carbons
0.06calc.
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(-c3ccc(N=Nc4ccc5ccc(N=Nc6ccccc6)cc5c4)cc3)cc2)cc1

c1ccc(N=Nc2ccc(-c3ccc(N=Nc4ccc5ccc(N=Nc6ccccc6)cc5c4)cc3)cc2)cc1

6 rings, 40 atoms.

61 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 black-154 suppliers

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Direct black-154 price

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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 black-154 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 black-154 is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Direct black-154, based on the data on this page

What is Direct black-154?

Direct black-154 is a chemical substance with the molecular formula C36H29N9Na2O7S2 and a molar mass of 809.80 g/mol. Its CAS registry number is 37372-50-2.

What is the CAS number of Direct black-154?

The CAS registry number of Direct black-154 is 37372-50-2. Other or deprecated CAS numbers: 54804-85-2.

What is the molecular formula and weight of Direct black-154?

The molecular formula of Direct black-154 is C36H29N9Na2O7S2 and its molar mass is 809.80 g/mol.

What is Direct black-154 used for?

Known uses and roles of Direct black-154 include textile dyes in textiles and leather.

Is Direct black-154 hazardous?

No GHS hazard classification for Direct black-154 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 black-154?

Direct black-154 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 black-154?

Post a free request on CompoundList and suppliers of Direct black-154 will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Direct black-154?

Suppliers quote Direct black-154 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 black-154

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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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