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Basic and cationic dyes

Basic Blue 11

Also known as Victoria Blue R, BASIC BLUE K, C.I. 44040

CAS 2185-86-6Formula C29H32ClN3Molar mass 458.05 g/molEC 218-572-7
GHS signal word: Warning. Pictograms: Harmful or irritant 9 suppliers listed
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Basic Blue 11 chemical structure, C29H32ClN3, CAS 2185-86-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
2185-86-6
Formula
C29H32ClN3
Molar mass
458.05 g/mol
EC number
218-572-7
HS code
320413
Category
Basic and cationic dyes

What is Basic Blue 11?

Plain description, key identifiers and synonyms

Victoria blue R is an iminium salt composed of 4-{[4-(dimethylamino)phenyl][4-(ethylamino)naphthalen-1-yl]methylidene}-N,N-dimethylcyclohexa-2,5-dien-1-iminium and chloride ions in a 1:1 ratio. It has a role as a fluorochrome and a histological dye. It is an iminium salt and an organic chloride salt. It contains a victoria blue R(1+).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
[4-[bis[4-(dimethylamino)phenyl]methylidene]naphthalen-1-ylidene]-ethylazanium chloride
CAS number
2185-86-6 CAS number cross-checked
EC number
218-572-7
Molecular formula
C29H32ClN3
MDL number
MFCD00011876
InChIKey
JEVGKYBUANQAKG-UHFFFAOYSA-N
InChI
InChI=1S/C29H31N3.ClH/c1-6-30-28-20-19-27(25-9-7-8-10-26(25)28)29(21-11-15-23(16-12-21)31(2)3)22-13-17-24(18-14-22)32(4)5;/h7-20H,6H2,1-5H3;1H
SMILES (canonical and isomeric)
CC[NH+]=C1C=CC(=C(C2=CC=C(C=C2)N(C)C)C3=CC=C(C=C3)N(C)C)C4=CC=CC=C14.[Cl-]

Synonyms

  • Victoria Blue R
  • BASIC BLUE K
  • C.I. 44040
  • CI 44040
  • Victoria Blue RS
  • C.I. Basic Blue 11
  • Victoria Lake Blue R
  • Hidaco Victoria Blue R
  • Aizen Victoria Blue BOH
  • N-(4-((4-(Dimethylamino)phenyl)(4-(ethylamino)naphthalen-1-yl)methylene)cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride
  • [4-[bis[4-(dimethylamino)phenyl]methylidene]naphthalen-1-ylidene]-ethylazanium, chloride
  • 4-{[4-(dimethylamino)phenyl][4-(ethylamino)naphthalen-1-yl]methylidene}-N,N-dimethylcyclohexa-2,5-dien-1-iminium chloride
  • 5-cyclohexadien-1-ylidene)-n-methyl-thylene)-chloride
  • 5-cyclohexadien-1-ylidene]-n-methyl-thylene]-chloride
  • basicbluek
  • basicbrilliantbluer
  • c.i.basicblue11
  • aizenvictoriablueboh
  • Methanaminium, N-(4-((4-(dimethylamino)phenyl)(4-(ethylamino)-1-naphthalenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-methyl-, chloride
  • c.1.basicblue11(44040)
  • vic-toria blue r
  • (4-{[4-(dimethylamino)phenyl][4-(ethylamino)naphthyl]methylene}cyclohexa-2,5-d ienylidene)dimethylamine, chloride
  • Methanaminium, N-[4-[[4-(dimethylamino)phenyl][4-(ethylamino)-1-naphthalenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-, chloride
  • Victoria Blue R, Dye content 80 %
  • N,N'-(N,N'-Tetramethyl)-1-diaminodiphenylnaphthylaminomethane hydrochloride
Show all 29 synonyms
  • (4-((4-(Dimethylamino)phenyl)(4-(ethylamino)-1-naphthyl)methylene)cyclohexa-2,5-dien-1-ylidene)dimethylammonium chloride
  • Victoria Blue R (C.I. 44040) (Technical Grade)
  • [4-[Bis[4-(dimethylamino)phenyl]methylidene]naphthalen-1-ylidene]-ethylazanium chloride
  • Methanaminium, N-(4-((4-(dimethylamino)phenyl)(4-(ethylamino)-1-naphthalenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-methyl-, chloride (1:1)

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
458.05 g/molcalc.
Exact mass
457.2285 Dacalc.
LogP (octanol/water)
1.24calc.
Topological polar surface area
20.45 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
5calc.
Heavy atoms
33calc.
Rings
4calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.21calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.
Lipinski rule of five
Passes (0 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, [N]=C1C=CC(=C(c2ccccc2)c2ccccc2)c2ccccc21

[N]=C1C=CC(=C(c2ccccc2)c2ccccc2)c2ccccc21

4 rings, 24 atoms.

14 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
Precautionary statements (5)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • 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

Basic Blue 11 suppliers

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

All 9 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

9 suppliers in 3 countries

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Basic Blue 11 price

Indicative price range per kg from live supplier offers

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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

Roles

  • dye
  • fluorescent dye
  • fluorochrome
  • histological dye

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 Basic Blue 11 is traded under.

HS 3204.13Indicative HS code

Basic dyes and preparations based thereon

World exports in 2024
$209M
−2.6% vs 2023, imports $224M
2019 to 2024
Top exporters
  1. India * partner reported27.9%
  2. China21.8%
  3. Spain6.6%
Top importers
  1. United States11.2%
  2. China7.9%
  3. Germany7.4%

* Partner reported figures, a lower bound.

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

The HS code shown for Basic Blue 11 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Basic Blue 11, based on the data on this page

What is Basic Blue 11?

Victoria blue R is an iminium salt composed of 4-{[4-(dimethylamino)phenyl][4-(ethylamino)naphthalen-1-yl]methylidene}-N,N-dimethylcyclohexa-2,5-dien-1-iminium and chloride ions in a 1:1 ratio. It has a role as a fluorochrome and a histological dye. It is an iminium salt and an organic chloride salt.

What is the CAS number of Basic Blue 11?

The CAS registry number of Basic Blue 11 is 2185-86-6.

What is the molecular formula and weight of Basic Blue 11?

The molecular formula of Basic Blue 11 is C29H32ClN3 and its molar mass is 458.05 g/mol.

What is Basic Blue 11 used for?

Known uses and roles of Basic Blue 11 include textile dyes in textiles and leather, indicators and stains in research and laboratory, dye, fluorescent dye, fluorochrome and 1 more.

Is Basic Blue 11 hazardous?

Basic Blue 11 carries the GHS signal word "Warning". Main hazards: harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Basic Blue 11?

Basic Blue 11 is usually classified under HS code 320413 (Basic dyes and preparations based thereon). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Basic Blue 11?

CompoundList lists 9 suppliers of Basic Blue 11 in India, China and Canada. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Basic Blue 11 in India?

5 suppliers in India list Basic Blue 11 on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Basic Blue 11?

Suppliers quote Basic Blue 11 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 Basic Blue 11

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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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