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Cosmetic colorants and hair dyes

HC Red 3

Also known as HC Red No. 3, Ethanol, 2-[(4-amino-2-nitrophenyl)amino]-, H.C. Red 3

CAS 2871-01-4Formula C8H11N3O3Molar mass 197.19 g/molEC 220-701-7
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 10 suppliers listed
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HC Red 3 chemical structure, C8H11N3O3, CAS 2871-01-4
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Crystals
Melting point
126.7 to 127.8
Solubility
Less than 0.1 mg/mL at 64 °F
HS code
292219
Category
Cosmetic colorants and hair dyes
Illustrative photo, closed jumbo bulk bags in a warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is HC Red 3?

Plain description, key identifiers and synonyms

HC Red No. 3 is a C-nitro compound.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-(4-amino-2-nitroanilino)ethanol
CAS number
2871-01-4 CAS number cross-checked
EC number
220-701-7
Molecular formula
C8H11N3O3
UNII
51CPX7M1SQ
MDL number
MFCD00071801
INCI name
HC RED NO. 3
InChIKey
GZGZVOLBULPDFD-UHFFFAOYSA-N
InChI
InChI=1S/C8H11N3O3/c9-6-1-2-7(10-3-4-12)8(5-6)11(13)14/h1-2,5,10,12H,3-4,9H2
SMILES (canonical and isomeric)
C1=CC(=C(C=C1N)[N+](=O)[O-])NCCO

Synonyms

  • HC Red No. 3
  • Ethanol, 2-[(4-amino-2-nitrophenyl)amino]-
  • H.C. Red 3
  • 4-(2-Hydroxyethyl)amino-3-nitroaniline
  • Colorex hcr3
  • Ethanol, 2-((4-amino-2-nitrophenyl)amino)-
  • Jarocol red 3
  • N1-(2-Hydroxyethyl)-2-nitro-p-phenylenediamine
  • Ethanol, 2-(4-amino-2-nitroanilino)-
  • Covariane rouge w 3123
  • Ethanol,2-((4-amino-2-nitrophenyl)amino)-
  • 2-((4-Amino-2-nitrophenyl)amino)ethanol
  • 2-(4-Amino-2-nitroanilino)ethanol
  • 2-(4-amino-2-nitroanilino)-ethanol
  • 2-[(4-amino-2-nitrophenyl)amino]ethanol
  • HC RED NO.3
  • 2-((4-Amino-2-nitrophenyl)amino)ethan-1-ol
  • HC RED #3
  • 2-(4-amino-2-nitro-anilino)ethanol
  • HC RED #
  • N(sup 1)-(2-Hydroxyethyl)-2-nitro-p-phenylenediamine
  • 2-(4-Amino-2-nitroanilino)ethan-1-ol
  • 2-[(4-Amino-2-nitrophenyl)amino]-ethanol
  • 4-Amino-N-(2-hydroxyethyl)-2-nitroaniline
  • N1-(2-Hydroxyethyl)-2-nitro-1,4-phenylenediamine

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
Crystalsexp.
Melting point
126.7 to 127.8exp.
Solubility
Less than 0.1 mg/mL at 64 °Fexp.

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
197.19 g/molcalc.
Exact mass
197.08 Dacalc.
LogP (octanol/water)
0.58calc.
Topological polar surface area
101.4 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
4calc.
Heavy atoms
14calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.25calc.
Formal charge
0calc.
Stereocentres
0calc.
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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 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
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H315Causes skin irritation.
  • H317May cause an allergic skin reaction.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (20)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • 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.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P337 + P317If eye irritation persists: 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

HC Red 3 suppliers

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

All 10 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

10 suppliers in 4 countries

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HC Red 3 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

Dye in semi-permanent hair dyes.

Use classes: Cosmetics.

Cosmetic ingredient, INCI name HC RED NO. 3(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 III, restricted in cosmetics
    Name: HC RED No 3, Ref no: 266, Annex ref: III/266

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 HC Red 3 is traded under.

HS 2922.19Indicative HS code

Amino-alcohols, other than those containing more than one kind of oxygen function, their…

World exports in 2024
$2.2B
−4.7% vs 2023, imports $2.27B
2019 to 2024
Top exporters
  1. China21.7%
  2. Germany17.3%
  3. United States15.6%
Top importers
  1. India * partner reported11.0%
  2. United States9.0%
  3. Germany7.2%

* Partner reported figures, a lower bound.

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

The HS code shown for HC Red 3 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about HC Red 3, based on the data on this page

What is HC Red 3?

HC Red No. 3 is a C-nitro compound.

What is the CAS number of HC Red 3?

The CAS registry number of HC Red 3 is 2871-01-4.

What is the molecular formula and weight of HC Red 3?

The molecular formula of HC Red 3 is C8H11N3O3 and its molar mass is 197.19 g/mol.

What is HC Red 3 used for?

Dye in semi-permanent hair dyes. Use classes: Cosmetics.

Is HC Red 3 hazardous?

HC Red 3 carries the GHS signal word "Warning". Main hazards: causes skin irritation, may cause an allergic skin reaction, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of HC Red 3?

HC Red 3 is usually classified under HS code 292219 (Amino-alcohols, other than those containing more than one kind of oxygen function, their…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy HC Red 3?

CompoundList lists 10 suppliers of HC Red 3 in China, Germany, India and Italy. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy HC Red 3 in India?

1 supplier in India list HC Red 3 on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of HC Red 3?

Suppliers quote HC Red 3 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 HC Red 3

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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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