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Basic and cationic dyes

Basic Red 46

Also known as C.I. Basic Red 46, Lowacryl red 46, C.I.BASIC RED 46

CAS 12221-69-1Formula C18H21BrN6Molar mass 401.31 g/molEC 602-156-0
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant, Hazardous to the environment 9 suppliers listed
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Basic Red 46 chemical structure, C18H21BrN6, CAS 12221-69-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
12221-69-1
Formula
C18H21BrN6
Molar mass
401.31 g/mol
EC number
602-156-0
HS code
320413
Category
Basic and cationic dyes

What is Basic Red 46?

Plain description, key identifiers and synonyms

Basic Red 46 is a chemical substance with the molecular formula C18H21BrN6 and a molar mass of 401.31 g/mol. Its CAS registry number is 12221-69-1. The IUPAC name is N-benzyl-4-[(2,4-dimethyl-1,2,4-triazol-4-ium-3-yl)diazenyl]-N-methylaniline bromide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
N-benzyl-4-[(2,4-dimethyl-1,2,4-triazol-4-ium-3-yl)diazenyl]-N-methylaniline bromide
CAS number
12221-69-1 CAS number cross-checked
EC number
602-156-0
Molecular formula
C18H21BrN6
UNII
58KJM7T349
MDL number
MFCD31618441
INCI name
BASIC RED 46
InChIKey
SYHRPJPCZWZVSR-UHFFFAOYSA-M
InChI
InChI=1S/C18H21N6.BrH/c1-22(13-15-7-5-4-6-8-15)17-11-9-16(10-12-17)20-21-18-23(2)14-19-24(18)3;/h4-12,14H,13H2,1-3H3;1H/q+1;/p-1
SMILES (canonical and isomeric)
CN1C(=[N+](C=N1)C)N=NC2=CC=C(C=C2)N(C)CC3=CC=CC=C3.[Br-]

Synonyms

  • C.I. Basic Red 46
  • Lowacryl red 46
  • C.I.BASIC RED 46
  • 4H-1,2,4-Triazolium, 1,4-dimethyl-5-(2-(4-(methyl(phenylmethyl)amino)phenyl)diazenyl)-, bromide (1:1)
  • astrazone red FBL
  • Basic Red 46, Technical grade
  • 5-((4-(Benzyl(methyl)amino)phenyl)diazenyl)-1,4-dimethyl-4H-1,2,4-triazol-1-ium bromide
  • N-benzyl-4-[(2,4-dimethyl-1,2,4-triazol-4-ium-3-yl)diazenyl]-N-methylaniline, bromide
  • Diacryl red grl-n
  • C18H21BrN6
  • 5-({4-[Benzyl(methyl)amino]phenyl}diazenyl)-1,4-dimethyl-1H-1,2,4-triazol-4-ium bromide
  • N-benzyl-4-[(2,4-dimethyl-1,2,4-triazol-4-ium-3-yl)azo]-N-methyl-aniline, bromide
  • 1H-1,2,4-Triazolium, 1,4-dimethyl-5-[(E)-2-[4-[methyl(phenylmethyl)amino]phenyl]diazenyl]-, bromide (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
401.31 g/molcalc.
Exact mass
400.1011 Dacalc.
LogP (octanol/water)
0.3calc.
Topological polar surface area
49.66 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
5calc.
Heavy atoms
25calc.
Rings
3calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.22calc.
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, c1ccc(CNc2ccc(N=Nc3ncn[nH]3)cc2)cc1

c1ccc(CNc2ccc(N=Nc3ncn[nH]3)cc2)cc1

3 rings, 21 atoms.

23 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H318Causes serious eye damage.
  • H411Toxic to aquatic life with long lasting effects.
  • H412Harmful to aquatic life with long lasting effects.
Precautionary statements (11)
  • 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 + P317If swallowed: Get medical help.
  • 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.
  • P330Rinse mouth.
  • P391Collect spillage.
  • 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 Red 46 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 Red 46 price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Use classes: Cosmetics.

Cosmetic ingredient, INCI name BASIC RED 46(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: 3(or5)-((4-(Benzylmethylamino)phenyl)azo)-1,2-(or1,4)-dimethyl-1H-1,2,4-triazolium and its salts, when used as a substance in hair dye products, Ref no:…

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Basic Red 46 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 Red 46 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 Red 46, based on the data on this page

What is Basic Red 46?

Basic Red 46 is a chemical substance with the molecular formula C18H21BrN6 and a molar mass of 401.31 g/mol. Its CAS registry number is 12221-69-1. The IUPAC name is N-benzyl-4-[(2,4-dimethyl-1,2,4-triazol-4-ium-3-yl)diazenyl]-N-methylaniline bromide.

What is the CAS number of Basic Red 46?

The CAS registry number of Basic Red 46 is 12221-69-1.

What is the molecular formula and weight of Basic Red 46?

The molecular formula of Basic Red 46 is C18H21BrN6 and its molar mass is 401.31 g/mol.

What is Basic Red 46 used for?

Use classes: Cosmetics.

Is Basic Red 46 hazardous?

Basic Red 46 carries the GHS signal word "Danger". Main hazards: harmful if swallowed, causes serious eye damage, toxic to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Basic Red 46?

Basic Red 46 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 Red 46?

CompoundList lists 9 suppliers of Basic Red 46 in China, India and United Kingdom. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Basic Red 46 in India?

3 suppliers in India list Basic Red 46 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 Red 46?

Suppliers quote Basic Red 46 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 Red 46

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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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