CompoundList
Sign in
Basic and cationic dyes

Basic Red 1:1

Also known as 3,6-Bis(ethylamino)-9-(2-(methoxycarbonyl)phenyl)-2,7-dimethylxanthylium chloride, Rhodamine 590, C.I. BASIC RED 1:1

CAS 12238-65-2Formula C27H29ClN2O3Molar mass 464.99 g/molEC 221-326-1
GHS signal word: Danger. Pictograms: Corrosive, Acute toxicity (severe), Harmful or irritant, Hazardous to the environment 9 suppliers listed
Get quotes Compare 9 suppliers
Basic Red 1:1 chemical structure, C27H29ClN2O3, CAS 12238-65-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
12238-65-2
Formula
C27H29ClN2O3
Molar mass
464.99 g/mol
Physical form
Powder
HS code
320413
Category
Basic and cationic dyes
Illustrative photo, a shrink wrapped pallet of kraft paper sacks in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Basic Red 1:1?

Plain description, key identifiers and synonyms

Basic Red 1:1 is a chemical substance with the molecular formula C27H29ClN2O3 and a molar mass of 464.99 g/mol. Its CAS registry number is 12238-65-2. The IUPAC name is ethyl-[6-(ethylamino)-9-(2-methoxycarbonylphenyl)-2,7-dimethylxanthen-3-ylidene]azanium chloride.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ethyl-[6-(ethylamino)-9-(2-methoxycarbonylphenyl)-2,7-dimethylxanthen-3-ylidene]azanium chloride
CAS number
12238-65-2Other or deprecated CAS: 3068-39-1
EC numbers
221-326-1, 602-705-4
Molecular formula
C27H29ClN2O3
UNII
23DG89Z6G0
INCI name
BASIC RED 1:1
InChIKey
GOVUVIWZMYRXMY-UHFFFAOYSA-N
InChI
InChI=1S/C27H28N2O3.ClH/c1-6-28-22-14-24-20(12-16(22)3)26(18-10-8-9-11-19(18)27(30)31-5)21-13-17(4)23(29-7-2)15-25(21)32-24;/h8-15,28H,6-7H2,1-5H3;1H
SMILES (canonical and isomeric)
CCNC1=CC2=C(C=C1C)C(=C3C=C(C(=[NH+]CC)C=C3O2)C)C4=CC=CC=C4C(=O)OC.[Cl-]

Synonyms

  • 3,6-Bis(ethylamino)-9-(2-(methoxycarbonyl)phenyl)-2,7-dimethylxanthylium chloride
  • Rhodamine 590
  • C.I. BASIC RED 1:1
  • Rhodamine f 4g
  • Basonyl 485
  • Xanthylium, 3,6-bis(ethylamino)-9-(2-(methoxycarbonyl)phenyl)-2,7-dimethyl-, chloride (1:1)
  • CI 45161
  • Xanthylium, 3,6-bis(ethylamino)-9-(2-(methoxycarbonyl)phenyl)-2,7-dimethyl-, chloride
  • Xanthylium, 3,6-bis(ethylamino)-9-[2-(methoxycarbonyl)phenyl]-2,7-dimethyl-, chloride
  • 3,6-bis(Ethylamino)-9-[2-(methoxycarbonyl)phenyl]-2,7-dimethylxanthylium chloride
  • Xanthylium, 3,6-bis(ethylamino)-9-[2-(methoxycarbonyl)phenyl]-2,7-dimethyl-, chloride (1:1)
  • Benzoic acid, 2-(6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl)-, methyl ester, monohydrochloride
  • Benzoic acid, o-(6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl)-, methyl ester, hydrochloride
  • Xanthylium, 3,6-bis(ethylamino)-9-2-(methoxycarbonyl)phenyl-2,7-dimethyl-, chloride
  • C.I.Basic Red 1:1
  • Rhodamine 590 chloride
  • Xanthylium,3,6-bis(ethylamino)-9-[2-(methoxycarbonyl)phenyl]-2,7-dimethyl-,chloride
  • ethyl-[6-(ethylamino)-9-(2-methoxycarbonylphenyl)-2,7-dimethylxanthen-3-ylidene]azanium, chloride
  • C.I.Basic Red 1:1 (C.I.45161)
  • 3,6-Bis(ethylamino)-9-(2-(methoxycarbonyl)phenyl)-2,7-dimethylxanthyliumchloride
  • 3,6-Bis(ethylamino)-9-[2-(methoxycarbonyl)phenyl]-2,7-dimethylxanthen-10-ium 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
Powderexp.

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
464.99 g/molcalc.
Exact mass
464.1867 Dacalc.
LogP (octanol/water)
1.05calc.
Topological polar surface area
65.44 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
5calc.
Heavy atoms
33calc.
Rings
4calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.26calc.
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]=c1ccc2c(-c3ccccc3)c3ccccc3oc-2c1

[N]=c1ccc2c(-c3ccccc3)c3ccccc3oc-2c1

4 rings, 21 atoms.

35 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

  • H302Harmful if swallowed.
  • H317May cause an allergic skin reaction.
  • H318Causes serious eye damage.
  • H330Fatal if inhaled.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (25)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • 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.
  • P271Use only outdoors or in a well-ventilated area.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P320Specific treatment is urgent (see supplemental first aid instructions on the label).
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • 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 Red 1:1 suppliers

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

All 9 suppliers
9 of 9 offers

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

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Basic Red 1:1 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

Industrial uses: Pigment, Dye.

Consumer uses: Pigment.

Cosmetic ingredient, INCI name BASIC RED 1:1(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

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 Red 1:1 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 1:1 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Basic Red 1:1, based on the data on this page

What is Basic Red 1:1?

Basic Red 1:1 is a chemical substance with the molecular formula C27H29ClN2O3 and a molar mass of 464.99 g/mol. Its CAS registry number is 12238-65-2. The IUPAC name is ethyl-[6-(ethylamino)-9-(2-methoxycarbonylphenyl)-2,7-dimethylxanthen-3-ylidene]azanium chloride.

What is the CAS number of Basic Red 1:1?

The CAS registry number of Basic Red 1:1 is 12238-65-2. Other or deprecated CAS numbers: 3068-39-1.

What is the molecular formula and weight of Basic Red 1:1?

The molecular formula of Basic Red 1:1 is C27H29ClN2O3 and its molar mass is 464.99 g/mol.

What is Basic Red 1:1 used for?

Industrial uses: Pigment, Dye. Consumer uses: Pigment.

Is Basic Red 1:1 hazardous?

Basic Red 1:1 carries the GHS signal word "Danger". Main hazards: harmful if swallowed, may cause an allergic skin reaction, causes serious eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Basic Red 1:1?

Basic Red 1:1 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 1:1?

CompoundList lists 9 suppliers of Basic Red 1:1 in China, Canada and India. 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 1:1 in India?

1 supplier in India list Basic Red 1:1 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 1:1?

Suppliers quote Basic Red 1:1 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 1:1

Get quotes for Basic Red 1:1

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 Red 1:1
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 Red 1:1 with a 3D view, its CAS number and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/basic-red-1-1-12238-65-2" title="Basic Red 1:1 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

9 suppliers
Free quotes, contact stays private
Get quotes