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Dyes and pigments

Trypan blue

Also known as trypan blue(4-), 5-Amino-3-[[4-[4-[(8-amino-1-hydroxy-3,6-disulfonatonaphthalen-2-yl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]-4-hydroxynaphthalene-2,7-disulfonate, 3,3'-[(3,3'-dimethylbiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis(5-amino-4-hydroxynaphthalene-2,7-disulfonate)

Formula C34H24N6O14S4-4Molar mass 868.86 g/molEC 200-786-7
GHS signal word: Danger. Pictograms: Serious health hazard
Get quotes Safety data
Trypan blue chemical structure, C34H24N6O14S4-4
2D chemical structure

Key facts

What buyers check first

All properties
Formula
C34H24N6O14S4-4
Molar mass
868.86 g/mol
EC number
200-786-7
HS code
292700
Category
Dyes and pigments

What is Trypan blue?

Plain description, key identifiers and synonyms

Trypan blue(4-) is an organosulfonate oxoanion that is the tetraanionic form of trypan blue. It is a conjugate base of a trypan blue sulfonic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-amino-3-[[4-[4-[(8-amino-1-hydroxy-3,6-disulfonatonaphthalen-2-yl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]-4-hydroxynaphthalene-2,7-disulfonate
EC number
200-786-7
Molecular formula
C34H24N6O14S4-4
InChIKey
ZBNARPCCDMHDDV-UHFFFAOYSA-J
InChI
InChI=1S/C34H28N6O14S4/c1-15-7-17(3-5-25(15)37-39-31-27(57(49,50)51)11-19-9-21(55(43,44)45)13-23(35)29(19)33(31)41)18-4-6-26(16(2)8-18)38-40-32-28(58(52,53)54)12-20-10-22(56(46,47)48)14-24(36)30(20)34(32)42/h3-14,41-42H,35-36H2,1-2H3,(H,43,44,45)(H,46,47,48)(H,49,50,51)(H,52,53,54)/p-4
SMILES (canonical and isomeric)
CC1=C(C=CC(=C1)C2=CC(=C(C=C2)N=NC3=C(C4=C(C=C(C=C4C=C3S(=O)(=O)[O-])S(=O)(=O)[O-])N)O)C)N=NC5=C(C6=C(C=C(C=C6C=C5S(=O)(=O)[O-])S(=O)(=O)[O-])N)O

Synonyms

  • trypan blue(4-)
  • 5-Amino-3-[[4-[4-[(8-amino-1-hydroxy-3,6-disulfonatonaphthalen-2-yl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]-4-hydroxynaphthalene-2,7-disulfonate
  • 3,3'-[(3,3'-dimethylbiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis(5-amino-4-hydroxynaphthalene-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
868.86 g/molcalc.
Exact mass
868.0255 Dacalc.
LogP (octanol/water)
5.3calc.
Topological polar surface area
370.7 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
20calc.
Rotatable bonds
9calc.
Heavy atoms
58calc.
Rings
6calc.
Aromatic rings
6calc.
Fraction sp3 carbons
0.06calc.
Formal charge
-4calc.
Stereocentres
0calc.
Lipinski rule of five
Fails (3 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

GHS signal word
Danger
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H350May cause cancer.
Precautionary statements (5)
  • P203Obtain, read and follow all safety instructions before use.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P318If exposed or concerned, get medical advice.
  • P405Store locked up.
  • 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

Trypan blue suppliers

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Trypan blue 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

Roles

  • dye

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 Trypan 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 Trypan blue is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Trypan blue?

Trypan blue(4-) is an organosulfonate oxoanion that is the tetraanionic form of trypan blue. It is a conjugate base of a trypan blue sulfonic acid.

What is the molecular formula and weight of Trypan blue?

The molecular formula of Trypan blue is C34H24N6O14S4-4 and its molar mass is 868.86 g/mol.

What is Trypan blue used for?

Known uses and roles of Trypan blue include dye.

Is Trypan blue hazardous?

Trypan blue carries the GHS signal word "Danger". Main hazards: may cause cancer. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Trypan blue?

Trypan 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 Trypan blue?

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What is the price of Trypan blue?

Suppliers quote Trypan 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 Trypan 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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