CompoundList

Azo blue

Also known as Azoblue, Azoblue(10.5-11.5), disodium, 4-hydroxy-3-[[4-[4-[(1-hydroxy-4-sulfonatonaphthalen-2-yl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]naphthalene-1-sulfonate

CAS 6059-34-3Formula C34H24N4Na2O8S2Molar mass 726.70 g/molEC 611-994-6
Azo blue chemical structure, C34H24N4Na2O8S2, CAS 6059-34-3
2D chemical structure

Key facts

What buyers check first

CAS number
6059-34-3
Formula
C34H24N4Na2O8S2
Molar mass
726.70 g/mol
EC number
611-994-6
HS code
292700
Category
Nitriles, nitro and azo compounds

What is Azo blue?

Plain description, key identifiers and synonyms

Azo blue is a chemical substance with the molecular formula C34H24N4Na2O8S2 and a molar mass of 726.70 g/mol. Its CAS registry number is 6059-34-3. The IUPAC name is disodium, 4-hydroxy-3-[[4-[4-[(1-hydroxy-4-sulfonatonaphthalen-2-yl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]naphthalene-1-sulfonate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
disodium, 4-hydroxy-3-[[4-[4-[(1-hydroxy-4-sulfonatonaphthalen-2-yl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]naphthalene-1-sulfonate
CAS number
6059-34-3
EC number
611-994-6
Molecular formula
C34H24N4Na2O8S2
MDL number
MFCD00059133
InChIKey
ZMEQYWNDTCDNMG-UHFFFAOYSA-L
InChI
InChI=1S/C34H26N4O8S2.2Na/c1-19-15-21(11-13-27(19)35-37-29-17-31(47(41,42)43)23-7-3-5-9-25(23)33(29)39)22-12-14-28(20(2)16-22)36-38-30-18-32(48(44,45)46)24-8-4-6-10-26(24)34(30)40;;/h3-18,39-40H,1-2H3,(H,41,42,43)(H,44,45,46);;/q;2*+1/p-2
SMILES (canonical and isomeric)
CC1=C(C=CC(=C1)C2=CC(=C(C=C2)N=NC3=C(C4=CC=CC=C4C(=C3)S(=O)(=O)[O-])O)C)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])O.[Na+].[Na+]

Synonyms

  • Azoblue
  • Azoblue(10.5-11.5)
  • disodium, 4-hydroxy-3-[[4-[4-[(1-hydroxy-4-sulfonatonaphthalen-2-yl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]naphthalene-1-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
726.70 g/molcalc.
Exact mass
726.0831 Dacalc.
LogP (octanol/water)
2.34calc.
Topological polar surface area
204.3 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
12calc.
Rotatable bonds
7calc.
Heavy atoms
50calc.
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, c1ccc2cc(N=Nc3ccc(-c4ccc(N=Nc5ccc6ccccc6c5)cc4)cc3)ccc2c1

c1ccc2cc(N=Nc3ccc(-c4ccc(N=Nc5ccc6ccccc6c5)cc4)cc3)ccc2c1

6 rings, 36 atoms.

154 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.

Azo blue suppliers

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Azo blue price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Azo blue is traded under.

HS 2927.00Indicative HS code

Diazo-, azo- or azoxy compounds

World exports in 2024
$571M
+6.1% vs 2023, imports $525M
2019 to 2024
Top exporters
  1. China47.0%
  2. Indonesia13.1%
  3. Japan9.3%
Top importers
  1. United States10.2%
  2. India * partner reported9.1%
  3. South Korea9.1%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Azo blue, based on the data on this page

What is Azo blue?

Azo blue is a chemical substance with the molecular formula C34H24N4Na2O8S2 and a molar mass of 726.70 g/mol. Its CAS registry number is 6059-34-3. The IUPAC name is disodium, 4-hydroxy-3-[[4-[4-[(1-hydroxy-4-sulfonatonaphthalen-2-yl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]naphthalene-1-sulfonate.

What is the CAS number of Azo blue?

The CAS registry number of Azo blue is 6059-34-3.

What is the molecular formula and weight of Azo blue?

The molecular formula of Azo blue is C34H24N4Na2O8S2 and its molar mass is 726.70 g/mol.

Is Azo blue hazardous?

No GHS hazard classification for Azo blue 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 Azo blue?

Azo blue is usually classified under HS code 292700 (Diazo-, azo- or azoxy-compounds). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Azo blue?

Post a free request on CompoundList and suppliers of Azo blue will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Azo blue?

Suppliers quote Azo blue 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 Azo blue

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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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