CompoundList
Sign in
Basic and cationic dyes

Basic Blue 5 free base

Also known as C.i. basic Blue 5 free base, 4-((2-Chlorophenyl)(4-(ethylimino)-3-methyl-2,5-cyclohexadien-1-ylidene)methyl)-N-ethyl-2-methylbenzenamine, Benzenamine, 4-((2-chlorophenyl)(4-(ethylimino)-3-methyl-2,5-cyclohexadien-1-ylidene)methyl)-N-ethyl-2-methyl-

CAS 25739-71-3Formula C25H27ClN2Molar mass 390.96 g/molEC 607-795-9
Get quotes Safety data
Basic Blue 5 free base chemical structure, C25H27ClN2, CAS 25739-71-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
25739-71-3
Formula
C25H27ClN2
Molar mass
390.96 g/mol
EC number
607-795-9
HS code
320413
Category
Basic and cationic dyes

What is Basic Blue 5 free base?

Plain description, key identifiers and synonyms

Basic Blue 5 free base is a chemical substance with the molecular formula C25H27ClN2 and a molar mass of 390.96 g/mol. Its CAS registry number is 25739-71-3. The IUPAC name is 4-[(Z)-(2-chlorophenyl)-(4-ethylimino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]-N-ethyl-2-methylaniline.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-[(Z)-(2-chlorophenyl)-(4-ethylimino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]-N-ethyl-2-methylaniline
CAS number
25739-71-3
EC number
607-795-9
Molecular formula
C25H27ClN2
UNII
V29GP5EY5X
InChIKey
TVKGDNHBYVWSOH-RVBMFFLJSA-N
InChI
InChI=1S/C25H27ClN2/c1-5-27-23-13-11-19(15-17(23)3)25(21-9-7-8-10-22(21)26)20-12-14-24(28-6-2)18(4)16-20/h7-16,27H,5-6H2,1-4H3/b25-20-,28-24?
Canonical SMILES
CCN=C1C=CC(=C(c2ccc(NCC)c(C)c2)c2ccccc2Cl)C=C1C
Isomeric SMILES
CCNC1=C(C=C(C=C1)/C(=C/2\C=CC(=NCC)C(=C2)C)/C3=CC=CC=C3Cl)C

Synonyms

  • C.i. basic Blue 5 free base
  • 4-((2-Chlorophenyl)(4-(ethylimino)-3-methyl-2,5-cyclohexadien-1-ylidene)methyl)-N-ethyl-2-methylbenzenamine
  • Benzenamine, 4-((2-chlorophenyl)(4-(ethylimino)-3-methyl-2,5-cyclohexadien-1-ylidene)methyl)-N-ethyl-2-methyl-

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
390.96 g/molcalc.
Exact mass
390.1863 Dacalc.
LogP (octanol/water)
6.86calc.
Topological polar surface area
24.39 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
5calc.
Heavy atoms
28calc.
Rings
3calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.24calc.
Formal charge
0calc.
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)c2ccccc2)C=C1

N=C1C=CC(=C(c2ccccc2)c2ccccc2)C=C1

3 rings, 20 atoms.

94 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.

Basic Blue 5 free base suppliers

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

No supplier listings yet

Post one free request and suppliers who make or trade Basic Blue 5 free base can send you quotes. Your contact details stay private until you accept a quote.

Request quotesSell this chemical

Basic Blue 5 free base 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.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Industries and functions

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 Basic Blue 5 free base 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 5 free base is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Basic Blue 5 free base, based on the data on this page

What is Basic Blue 5 free base?

Basic Blue 5 free base is a chemical substance with the molecular formula C25H27ClN2 and a molar mass of 390.96 g/mol. Its CAS registry number is 25739-71-3. The IUPAC name is 4-[(Z)-(2-chlorophenyl)-(4-ethylimino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]-N-ethyl-2-methylaniline.

What is the CAS number of Basic Blue 5 free base?

The CAS registry number of Basic Blue 5 free base is 25739-71-3.

What is the molecular formula and weight of Basic Blue 5 free base?

The molecular formula of Basic Blue 5 free base is C25H27ClN2 and its molar mass is 390.96 g/mol.

What is Basic Blue 5 free base used for?

Known uses and roles of Basic Blue 5 free base include textile dyes in textiles and leather.

Is Basic Blue 5 free base hazardous?

No GHS hazard classification for Basic Blue 5 free base 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 Basic Blue 5 free base?

Basic Blue 5 free base 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 5 free base?

Post a free request on CompoundList and suppliers of Basic Blue 5 free base will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Basic Blue 5 free base?

Suppliers quote Basic Blue 5 free base 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 5 free base

Get quotes for Basic Blue 5 free base

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Basic Blue 5 free base
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Basic Blue 5 free base with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/basic-blue-5-free-base-25739-71-3" title="Basic Blue 5 free base structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Basic and cationic dyes or HS code 320413

Price on request
Free quotes, contact stays private
Get quotes