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Hydroxides and bases

Indium hydroxide

Also known as Indium trihydroxide, Indium hydroxide (In(OH)3), Indium (III) hydroxide

CAS 55326-87-9Formula H3InO3Molar mass 165.84 g/molEC 243-947-7
GHS signal word: Warning. Pictograms: Harmful or irritant 6 suppliers listed
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Indium hydroxide chemical structure, H3InO3, CAS 55326-87-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
55326-87-9
Formula
H3InO3
Molar mass
165.84 g/mol
EC number
243-947-7
HS code
282590
Category
Hydroxides and bases

What is Indium hydroxide?

Plain description, key identifiers and synonyms

Indium hydroxide is a chemical substance with the molecular formula H3InO3 and a molar mass of 165.84 g/mol. Its CAS registry number is 55326-87-9. The IUPAC name is indium(3+) trihydroxide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
indium(3+) trihydroxide
CAS number
55326-87-9Other or deprecated CAS: 20661-21-6
EC numbers
243-947-7, 259-592-6
Molecular formula
H3InO3
UNII
09J170CMXV
InChIKey
IGUXCTSQIGAGSV-UHFFFAOYSA-K
InChI
InChI=1S/In.3H2O/h;3*1H2/q+3;;;/p-3
SMILES (canonical and isomeric)
[OH-].[OH-].[OH-].[In+3]

Synonyms

  • Indium trihydroxide
  • Indium hydroxide (In(OH)3)
  • Indium (III) hydroxide
  • Indium hydroxide (VAN)
  • indium(3+), trihydroxide
  • Indiumhydroxide
  • Indium(III)hydroxide
  • Indium hydroxide,99%
  • H3InO3
  • Indium Hydroxide Nanoparticles

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
165.84 g/molcalc.
Exact mass
165.9121 Dacalc.
LogP (octanol/water)
-0.91calc.
Topological polar surface area
90 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
4calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
4calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • 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.
  • 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.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • 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

Indium hydroxide suppliers

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

All 6 suppliers
6 of 6 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

6 suppliers in 4 countries

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Indium hydroxide 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.

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 Indium hydroxide is traded under.

HS 2825.90Indicative HS code

Inorganic bases not elsewhere classified in heading 2825

World exports in 2024
$972M
+5.4% vs 2023, imports $3.4B
2019 to 2024
Top exporters
  1. China28.5%
  2. United States23.7%
  3. Brazil10.8%
Top importers
  1. South Korea77.2%
  2. Japan4.3%
  3. United States3.8%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Indium hydroxide, based on the data on this page

What is Indium hydroxide?

Indium hydroxide is a chemical substance with the molecular formula H3InO3 and a molar mass of 165.84 g/mol. Its CAS registry number is 55326-87-9. The IUPAC name is indium(3+) trihydroxide.

What is the CAS number of Indium hydroxide?

The CAS registry number of Indium hydroxide is 55326-87-9. Other or deprecated CAS numbers: 20661-21-6.

What is the molecular formula and weight of Indium hydroxide?

The molecular formula of Indium hydroxide is H3InO3 and its molar mass is 165.84 g/mol.

Is Indium hydroxide hazardous?

Indium hydroxide carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Indium hydroxide?

Indium hydroxide is usually classified under HS code 282590 (Hydrazine and hydroxylamine and their inorganic salts, other inorganic bases, other…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Indium hydroxide?

CompoundList lists 6 suppliers of Indium hydroxide in China, Germany, United Kingdom and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Indium hydroxide?

Suppliers quote Indium hydroxide 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 Indium hydroxide

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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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