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Basic and cationic dyes

Basic Blue 7

Also known as Victoria Pure Blue BO, C.I. Basic Blue 7, Eljon Blue Toner

CAS 2390-60-5Formula C33H40ClN3Molar mass 514.16 g/molEC 219-232-0
GHS signal word: Danger. Pictograms: Corrosive, Acute toxicity (severe), Harmful or irritant, Hazardous to the environment 9 suppliers listed
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Basic Blue 7 chemical structure, C33H40ClN3, CAS 2390-60-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
2390-60-5
Formula
C33H40ClN3
Molar mass
514.16 g/mol
Physical form
Solid
HS code
320413
Category
Basic and cationic dyes
Illustrative photo, closed blue fibre drums on a pallet in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Basic Blue 7?

Plain description, key identifiers and synonyms

Basic Blue 7 is a chemical substance with the molecular formula C33H40ClN3 and a molar mass of 514.16 g/mol. Its CAS registry number is 2390-60-5. The IUPAC name is [4-[bis[4-(diethylamino)phenyl]methylidene]naphthalen-1-ylidene]-ethylazanium chloride.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
[4-[bis[4-(diethylamino)phenyl]methylidene]naphthalen-1-ylidene]-ethylazanium chloride
CAS number
2390-60-5 CAS number cross-checked
EC number
219-232-0
Molecular formula
C33H40ClN3
UNII
30F6F48H95
MDL number
MFCD00011877
INCI name
BASIC BLUE 7
InChIKey
ROVRRJSRRSGUOL-UHFFFAOYSA-N
InChI
InChI=1S/C33H39N3.ClH/c1-6-34-32-24-23-31(29-13-11-12-14-30(29)32)33(25-15-19-27(20-16-25)35(7-2)8-3)26-17-21-28(22-18-26)36(9-4)10-5;/h11-24H,6-10H2,1-5H3;1H
SMILES (canonical and isomeric)
CC[NH+]=C1C=CC(=C(C2=CC=C(C=C2)N(CC)CC)C3=CC=C(C=C3)N(CC)CC)C4=CC=CC=C14.[Cl-]

Synonyms

  • Victoria Pure Blue BO
  • C.I. Basic Blue 7
  • Eljon Blue Toner
  • Silosuper Blue B
  • Victoria Pure Blue
  • Victoria Blue FBO
  • Victoria Pure Blue RB
  • Aizen Victoria Blue BO
  • Calcozine Pure Blue BO
  • Victoria Pure Blue BGO
  • Victoria Pure Blue BOC
  • Victoria Pure Blue BOD
  • Victoria Pure Blue BON
  • Victoria Pure Blue BOP
  • Victoria Pure Blue FBO
  • Victoria Pure Lake Blue
  • Hidaco Victoria Blue BGO
  • Sicilian Blue X-2758
  • Victoria Blue BON 110
  • Brilliant Victoria Blue RB
  • Brilliant Victoria Blue RS
  • Victoria Pure Ink Blue BO
  • Victoria Blue, Green Shade
  • Victoria Pure Lake Blue BO
  • Mitsui Victoria Pure Blue BO
Show all 37 synonyms
  • Aizen Victoria Pure Blue BOH
  • C.I. 42595
  • No. 3772 Forthbrite Blue B
  • Victoria Pure Blue BO CI 42595
  • AIZEN SBN BLUE 701
  • Ethanaminium, N-(4-((4-(diethylamino)phenyl)(4-(ethylamino)-1-naphthalenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, chloride
  • Ethanaminium, N-[4-[[4-(diethylamino)phenyl][4-(ethylamino)-1-naphthalenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, chloride
  • CI 42595
  • Ethanaminium, N-(4-((4-(diethylamino)phenyl)(4-(ethylamino)-1-naphthalenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, chloride (1:1)
  • Ethanaminium, N-[4-[[4-(diethylamino)phenyl][4-(ethylamino)-1-naphthalenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, chloride (1:1)
  • C.I. Basic Blue 7 (8CI)
  • Ethanaminium, N-(4-((4-(diethylamino)phenyl)(4-(ethylamino)-1-naphthalenyl)meth-ylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, chloride

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

Physical form
Solidexp.

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
514.16 g/molcalc.
Exact mass
513.2911 Dacalc.
LogP (octanol/water)
2.8calc.
Topological polar surface area
20.45 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
9calc.
Heavy atoms
37calc.
Rings
4calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.3calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.
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)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
Danger
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H301Toxic if swallowed.
  • H315Causes skin irritation.
  • H318Causes serious eye damage.
  • H319Causes serious eye irritation.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (18)
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • 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

Basic Blue 7 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 4 countries

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Basic Blue 7 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

Consumer uses: Dye, Pigment.

Use classes: Cosmetics.

Cosmetic ingredient, INCI name BASIC BLUE 7(hair dyeing)

Functional uses

  • Dye

Cosmetic functions

  • Hair dyeing

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: Ethanaminium, N-[4-[[4-(diethylamino)phenyl][4-(ethylamino)-1-naphthalenyl]methylene]-2,5-cyclohexadien-1-ylidine]-N-ethyl-, and its salts, when used as…

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 7 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 7 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 7, based on the data on this page

What is Basic Blue 7?

Basic Blue 7 is a chemical substance with the molecular formula C33H40ClN3 and a molar mass of 514.16 g/mol. Its CAS registry number is 2390-60-5. The IUPAC name is [4-[bis[4-(diethylamino)phenyl]methylidene]naphthalen-1-ylidene]-ethylazanium chloride.

What is the CAS number of Basic Blue 7?

The CAS registry number of Basic Blue 7 is 2390-60-5.

What is the molecular formula and weight of Basic Blue 7?

The molecular formula of Basic Blue 7 is C33H40ClN3 and its molar mass is 514.16 g/mol.

What is Basic Blue 7 used for?

Consumer uses: Dye, Pigment. Use classes: Cosmetics.

Is Basic Blue 7 hazardous?

Basic Blue 7 carries the GHS signal word "Danger". Main hazards: toxic if swallowed, causes skin irritation, causes serious eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Basic Blue 7?

Basic Blue 7 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 7?

CompoundList lists 9 suppliers of Basic Blue 7 in China, Hong Kong, India and United States. 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 7 in India?

1 supplier in India list Basic Blue 7 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 7?

Suppliers quote Basic Blue 7 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 7

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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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