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Aromatic building blocks

3-Hydroxy-2-naphthanilide

Also known as Naphtol AS, Cibanaphthol RF, Naphtanilide RC

CAS 92-77-3Formula C17H13NO2Molar mass 263.30 g/molEC 202-188-1
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 11 suppliers listed
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3-Hydroxy-2-naphthanilide chemical structure, C17H13NO2, CAS 92-77-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
92-77-3
Formula
C17H13NO2
Molar mass
263.30 g/mol
Physical form
Powder
HS code
292429
Category
Aromatic building blocks
Illustrative photo, closed jumbo bulk bags in a warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 3-Hydroxy-2-naphthanilide?

Plain description, key identifiers and synonyms

3-Hydroxy-2-naphthanilide is a chemical substance with the molecular formula C17H13NO2 and a molar mass of 263.30 g/mol. Its CAS registry number is 92-77-3. The IUPAC name is 3-hydroxy-N-phenylnaphthalene-2-carboxamide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-hydroxy-N-phenylnaphthalene-2-carboxamide
CAS number
92-77-3 CAS number cross-checkedOther or deprecated CAS: 86349-50-0
EC number
202-188-1
Molecular formula
C17H13NO2
UNII
V3ZU6E76NB
MDL number
MFCD00004096
InChIKey
JFGQHAHJWJBOPD-UHFFFAOYSA-N
InChI
InChI=1S/C17H13NO2/c19-16-11-13-7-5-4-6-12(13)10-15(16)17(20)18-14-8-2-1-3-9-14/h1-11,19H,(H,18,20)
SMILES (canonical and isomeric)
C1=CC=C(C=C1)NC(=O)C2=CC3=CC=CC=C3C=C2O

Synonyms

  • Naphtol AS
  • Cibanaphthol RF
  • Naphtanilide RC
  • Solunaptol A
  • Tulathol AS
  • 2-Naphthalenecarboxamide, 3-hydroxy-N-phenyl-
  • Celcot RF
  • Diathol ASF
  • Naphthol AS-A
  • Ultrazol I-AS
  • Naphthol AS Supra
  • ACCO Naphthol AS
  • Azonaphtol A
  • Dragonthol A
  • Naphtoelan A
  • Naftoelan A
  • Naphtazol A
  • Naphtholate AS
  • Azoground AS
  • Kambothol AS
  • Naphthanil AS
  • Naphthoide AS
  • Anthonaphthol AS
  • Hiltonaphthol AS
  • Amarthol AS
Show all 39 synonyms
  • Brenthol AS
  • Azotol A
  • Diathol AS
  • Naftolo MM
  • Lake Developer A
  • ACNA Naphthol C
  • Naphthol ACNA C
  • 2-Hydroxy-3-naphthoic acid anilide
  • Amanil Naphthol AS
  • Naphtolate AS Soln
  • Naphtholate AS Soln
  • C.I. 37505
  • Mitsui Naphthozol AS
  • Naphtanilide OL Supra

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
263.30 g/molcalc.
Exact mass
263.0946 Dacalc.
LogP (octanol/water)
3.8calc.
Topological polar surface area
49.33 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
20calc.
Rings
3calc.
Aromatic rings
3calc.
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, O=C(Nc1ccccc1)c1ccc2ccccc2c1

O=C(Nc1ccccc1)c1ccc2ccccc2c1

3 rings, 19 atoms, the N-Phenylnaphthalene-2-carboxamide ring system.

375 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

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H317May cause an allergic skin reaction.
  • H319Causes serious eye irritation.
  • H332Harmful if inhaled.
  • H335May cause respiratory irritation.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (24)
  • 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.
  • 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 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • 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

3-Hydroxy-2-naphthanilide suppliers

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All 11 suppliers
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Where suppliers are based

11 suppliers in 5 countries

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3-Hydroxy-2-naphthanilide price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Industrial uses: Pigment, Intermediate.

Consumer uses: Pigment.

Regulatory status

Inventories, regulations and trade controls that list this substance

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 3-Hydroxy-2-naphthanilide is traded under.

HS 2924.29Indicative HS code

Cyclic amides (including cyclic carbamates) and their derivatives, salts thereof, other

World exports in 2024
$5.69B
−5.1% vs 2023, imports $5.8B
2019 to 2024
Top exporters
  1. China32.3%
  2. Switzerland * partner reported13.6%
  3. Norway * partner reported12.8%
Top importers
  1. United States15.9%
  2. Ireland15.8%
  3. Germany11.9%

* Partner reported figures, a lower bound.

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

The HS code shown for 3-Hydroxy-2-naphthanilide is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 3-Hydroxy-2-naphthanilide, based on the data on this page

What is 3-Hydroxy-2-naphthanilide?

3-Hydroxy-2-naphthanilide is a chemical substance with the molecular formula C17H13NO2 and a molar mass of 263.30 g/mol. Its CAS registry number is 92-77-3. The IUPAC name is 3-hydroxy-N-phenylnaphthalene-2-carboxamide.

What is the CAS number of 3-Hydroxy-2-naphthanilide?

The CAS registry number of 3-Hydroxy-2-naphthanilide is 92-77-3. Other or deprecated CAS numbers: 86349-50-0.

What is the molecular formula and weight of 3-Hydroxy-2-naphthanilide?

The molecular formula of 3-Hydroxy-2-naphthanilide is C17H13NO2 and its molar mass is 263.30 g/mol.

What is 3-Hydroxy-2-naphthanilide used for?

Industrial uses: Pigment, Intermediate. Consumer uses: Pigment.

Is 3-Hydroxy-2-naphthanilide hazardous?

3-Hydroxy-2-naphthanilide carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes skin irritation, may cause an allergic skin reaction. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 3-Hydroxy-2-naphthanilide?

3-Hydroxy-2-naphthanilide is usually classified under HS code 292429 (Cyclic amides (including cyclic carbamates) and their derivatives, salts thereof, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 3-Hydroxy-2-naphthanilide?

CompoundList lists 11 suppliers of 3-Hydroxy-2-naphthanilide in India, China, Switzerland, Germany and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy 3-Hydroxy-2-naphthanilide in India?

4 suppliers in India list 3-Hydroxy-2-naphthanilide on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of 3-Hydroxy-2-naphthanilide?

Suppliers quote 3-Hydroxy-2-naphthanilide 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 3-Hydroxy-2-naphthanilide

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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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