CompoundList
Sign in
Dye intermediates

2-Aminophenol

Also known as o-Aminophenol, o-Hydroxyaniline, 2-Hydroxyaniline

CAS 95-55-6Formula C6H7NOMolar mass 109.13 g/molEC 202-431-1
GHS signal word: Warning. Pictograms: Harmful or irritant, Serious health hazard 84 suppliers listed
Get quotes Compare 84 suppliers
2-Aminophenol chemical structure, C6H7NO, CAS 95-55-6
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Crystals, rapidly becoming brown
Melting point
170 to 174
Boiling point
153 ยฐC
Density
1.328 g/cmยณ at 25 ยฐC
Flash point
168 ยฐC
HS code
292229
Category
Dye intermediates
UN number
UN 2512
Illustrative photo, drums, an IBC tote and sacks in a chemical warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 2-Aminophenol?

Plain description, key identifiers and synonyms

2-aminophenol is the aminophenol which has the single amino substituent located ortho to the phenolic -OH group. It has a role as a bacterial metabolite.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-aminophenol
CAS number
95-55-6 CAS number cross-checkedOther or deprecated CAS: 25668-01-3
EC number
202-431-1
Molecular formula
C6H7NO
UNII
23RH73DZ65
MDL number
MFCD00007690
INCI name
O-AMINOPHENOL
InChIKey
CDAWCLOXVUBKRW-UHFFFAOYSA-N
InChI
InChI=1S/C6H7NO/c7-5-3-1-2-4-6(5)8/h1-4,8H,7H2
SMILES (canonical and isomeric)
C1=CC=C(C(=C1)N)O

Synonyms

  • o-Aminophenol
  • o-Hydroxyaniline
  • 2-Hydroxyaniline
  • Phenol, 2-amino-
  • 2-Amino-1-hydroxybenzene
  • Fouramine OP
  • Benzofur GG
  • Pelagol Grey GG
  • Pelagol 3GA
  • Nako Yellow 3GA
  • BASF ursol 3GA
  • Zoba 3GA
  • Phenol, o-amino-
  • Questiomycin B
  • o-Hydroxyphenylamine
  • ortho-aminophenol
  • 2-Hydroxyanaline
  • Nako Yellow ga
  • Paradone Olive Green B
  • 1-Amino-2-hydroxybenzene
  • 1-Hydroxy-2-aminobenzene
  • C.I. Oxidation Base 17
  • 2-Aminobenzenol
  • CI Oxidation Base 17
  • C.I. 76520
Show all 37 synonyms
  • CI 76520
  • Phenol, amino-
  • 2-amino phenol
  • Mesalazine EP Impurity C
  • 2-amino-phenol
  • 2-Amino-phenole
  • aniline, 2-hydroxy-
  • 2-hydroxybenzenamine
  • 2-Aminophenol, Mesalazine Imp. C (EP), Mesalazine Impurity C
  • amino-phenol
  • O-Amino phenol
  • 2-aminohydroxybenzene

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

Appearance
Crystals, rapidly becoming brownexp.
Melting point
170 to 174exp.
Boiling point
153 ยฐCexp.
Density
1.328 g/cmยณ at 25 ยฐCexp.
Flash point
168 ยฐCexp.
Autoignition temperature
190 ยฐCexp.
Solubility
1 g dissolves in 50 mL cold water, 23 mL alcoholexp.
Vapour pressure
Negligibleexp.

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
109.13 g/molcalc.
Exact mass
109.0528 Dacalc.
LogP (octanol/water)
0.97calc.
Topological polar surface area
46.25 ร…ยฒcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
8calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
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
GHS08: Serious health hazard
Serious health hazard
110NFPA 704 rating

Hazard statements

  • H302Harmful if swallowed.
  • H332Harmful if inhaled.
  • H341Suspected of causing genetic defects.
Precautionary statements (13)
  • P203Obtain, read and follow all safety instructions before use.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P317Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P330Rinse mouth.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 2512
Transport hazard class
6.1
Packing group
III

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

2-Aminophenol suppliers

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

All 84 suppliers
30 of 30 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

84 suppliers in 18 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

2-Aminophenol 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

Manufacture of azo and sulfur dyes ... hydrochloride used in dyeing fur, hair, leather, etc.

Dyeing furs and hair ... Manufacture of pharmaceuticals.

/2-Aminophenol is/ a strong reducing agent and is employed as a photographic developer ... it also acts as a corrosion inhibitor in paints and as an anticorrosion-lubricating agent in 2-cycle engine fuels. 2-Aminophenol is a principal intermediate in the synthesis of such heterocyclic systems as oxyquinolines, phenoxazines, and benzoxazoles (which are inflammation inhibitors) ... 2-Aminophenol is specifically used for shading leather, fur, and hair from grays to yellowish brown. It has also found application in the determination and extraction of certain precious metals.

Used as a chemical intermediate for the synthesis of: 2-benzoxazolethiol, benzoxazolone, 1,4-bis(benzoxazol-2-yl)naphthalene, 4,4'-bis(benzoxazol-2-yl)stilbene, chlorquinaldol, Fluorescent Brightener 190.

Use classes: Cosmetics.

Cosmetic ingredient, INCI name O-AMINOPHENOL(hair dyeing)

Roles

  • bacterial metabolite
  • metabolite
  • prokaryotic metabolite

Functional uses

  • Dye

Cosmetic functions

  • Hair dyeing

How it is made

By reduction of ortho-nitrophenol mixed with aqueous ammonia by means of stream of hydrogen sulfide.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 612-033-00-3

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: 2-aminophenol [1], bis(2-hydroxyanilinium) sulfate [2], 2-Aminophenol Hydrochloride [3], Ref no: 1372, Annex ref: II/1372

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 2-Aminophenol is traded under.

HS 2922.29Indicative HS code

Amino-naphthols and other amino-phenols, other than those containing more than one kindโ€ฆ

World exports in 2024
$467M
โˆ’15.3% vs 2023, imports $454M
2019 to 2024
Top exporters
  1. China63.1%
  2. India * partner reported15.5%
  3. Japan4.0%
Top importers
  1. India * partner reported25.8%
  2. United States14.4%
  3. South Korea7.6%

* Partner reported figures, a lower bound.

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

The HS code shown for 2-Aminophenol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2-Aminophenol, based on the data on this page

What is 2-Aminophenol?

2-aminophenol is the aminophenol which has the single amino substituent located ortho to the phenolic -OH group. It has a role as a bacterial metabolite.

What is the CAS number of 2-Aminophenol?

The CAS registry number of 2-Aminophenol is 95-55-6. Other or deprecated CAS numbers: 25668-01-3.

What is the molecular formula and weight of 2-Aminophenol?

The molecular formula of 2-Aminophenol is C6H7NO and its molar mass is 109.13 g/mol.

What is 2-Aminophenol used for?

Manufacture of azo and sulfur dyes ... hydrochloride used in dyeing fur, hair, leather, etc. Dyeing furs and hair ... Manufacture of pharmaceuticals. /2-Aminophenol is/ a strong reducing agent and is employed as a photographic developer ...

Is 2-Aminophenol hazardous?

2-Aminophenol carries the GHS signal word "Warning". Main hazards: harmful if swallowed, harmful if inhaled, suspected of causing genetic defects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 2-Aminophenol?

2-Aminophenol is usually classified under HS code 292229 (Amino-naphthols and other amino-phenols, other than those containing more than one kindโ€ฆ). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 2-Aminophenol?

CompoundList lists 84 suppliers of 2-Aminophenol in China, India, United States, Hong Kong and 14 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy 2-Aminophenol in India?

13 suppliers in India list 2-Aminophenol on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of 2-Aminophenol?

Suppliers quote 2-Aminophenol 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 2-Aminophenol

Get quotes for 2-Aminophenol

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell 2-Aminophenol
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 2-Aminophenol 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/2-aminophenol-95-55-6" title="2-Aminophenol 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 Dye intermediates or HS code 292229

84 suppliers
Free quotes, contact stays private
Get quotes