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Fluorescent dyes and stains

Cascade blue

Also known as N-(4-{[4-(diethylamino)phenyl][4-(ethylamino)-2-naphthyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-ethylethanaminium, [4-[[4-(diethylamino)phenyl]-[4-(ethylamino)naphthalen-2-yl]methylidene]cyclohexa-2,5-dien-1-ylidene]-diethylazanium, [4-[(4-Diethylaminophenyl)-(4-ethylaminonaphthalen-2-yl)methylidene]-1-cyclohexa-2,5-dienylidene]-diethyl-azanium

CAS 500906-09-2Formula C33H40N3+Molar mass 478.70 g/mol
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Cascade blue chemical structure, C33H40N3+, CAS 500906-09-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
500906-09-2
Formula
C33H40N3+
Molar mass
478.70 g/mol
HS code
292159
Category
Fluorescent dyes and stains

What is Cascade blue?

Plain description, key identifiers and synonyms

Cascade blue is an aminonaphthalene. It has a role as a fluorochrome.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
[4-[[4-(diethylamino)phenyl]-[4-(ethylamino)naphthalen-2-yl]methylidene]cyclohexa-2,5-dien-1-ylidene]-diethylazanium
CAS number
500906-09-2Other or deprecated CAS: 12238-23-2, 61725-40-4
Molecular formula
C33H40N3+
InChIKey
CZPLANDPABRVHX-UHFFFAOYSA-N
InChI
InChI=1S/C33H40N3/c1-6-34-32-24-28(23-27-13-11-12-14-31(27)32)33(25-15-19-29(20-16-25)35(7-2)8-3)26-17-21-30(22-18-26)36(9-4)10-5/h11-24,34H,6-10H2,1-5H3/q+1
SMILES (canonical and isomeric)
CCNC1=CC(=CC2=CC=CC=C21)C(=C3C=CC(=[N+](CC)CC)C=C3)C4=CC=C(C=C4)N(CC)CC

Synonyms

  • N-(4-{[4-(diethylamino)phenyl][4-(ethylamino)-2-naphthyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-ethylethanaminium
  • [4-[[4-(diethylamino)phenyl]-[4-(ethylamino)naphthalen-2-yl]methylidene]cyclohexa-2,5-dien-1-ylidene]-diethylazanium
  • [4-[(4-Diethylaminophenyl)-(4-ethylaminonaphthalen-2-yl)methylidene]-1-cyclohexa-2,5-dienylidene]-diethyl-azanium
  • 4-{[4-(Diethylamino)phenyl][4-(ethylamino)-2-naphthyl]methylene}-N,N-diethylcyclohexa-2,5-dien-1-iminium
  • 4-{[4-(Diethylamino)phenyl][4-(ethylamino)naphthalen-2-yl]methylidene}-N,N-diethylcyclohexa-2,5-dien-1-iminium

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
478.70 g/molcalc.
Exact mass
478.3217 Dacalc.
LogP (octanol/water)
7.54calc.
Topological polar surface area
18.28 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
9calc.
Heavy atoms
36calc.
Rings
4calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.3calc.
Formal charge
1calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)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, [N+]=C1C=CC(=C(c2ccccc2)c2ccc3ccccc3c2)C=C1

[N+]=C1C=CC(=C(c2ccccc2)c2ccc3ccccc3c2)C=C1

4 rings, 24 atoms.

1 other chemical 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.

Cascade blue suppliers

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Cascade 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
  • fluorescent dye
  • fluorochrome

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 Cascade blue is traded under.

HS 2921.59Indicative HS code

Aromatic polyamines and their derivatives, salts thereof, other

World exports in 2024
$510M
−0.4% vs 2023, imports $488M
2019 to 2024
Top exporters
  1. China26.6%
  2. Japan16.6%
  3. India * partner reported12.4%
Top importers
  1. United States17.9%
  2. Germany11.6%
  3. South Korea7.4%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Cascade blue?

Cascade blue is an aminonaphthalene. It has a role as a fluorochrome.

What is the CAS number of Cascade blue?

The CAS registry number of Cascade blue is 500906-09-2. Other or deprecated CAS numbers: 12238-23-2, 61725-40-4.

What is the molecular formula and weight of Cascade blue?

The molecular formula of Cascade blue is C33H40N3+ and its molar mass is 478.70 g/mol.

What is Cascade blue used for?

Known uses and roles of Cascade blue include dye, fluorescent dye and fluorochrome.

Is Cascade blue hazardous?

No GHS hazard classification for Cascade 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 Cascade blue?

Cascade blue is usually classified under HS code 292159 (Aromatic polyamines and their derivatives, salts thereof, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Cascade blue?

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

What is the price of Cascade blue?

Suppliers quote Cascade 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 Cascade 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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