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Hydroxyl

Also known as Hydroxyl radical, Hydrogen Oxide, oxidanyl

CAS 3352-57-6Formula HOMolar mass 17.01 g/mol
Hydroxyl chemical structure, HO, CAS 3352-57-6
2D chemical structure

Key facts

What buyers check first

CAS number
3352-57-6
Formula
HO
Molar mass
17.01 g/mol
HS code
285390
Category
Oxidizing and reducing agents

What is Hydroxyl?

Plain description, key identifiers and synonyms

Hydroxyl is a member of reactive oxygen species, an oxygen hydride and an oxygen radical.

Hydroxyl is a radical composed by one atom of oxygen and one atom of hydrogen.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ฮป1-oxidane
CAS number
3352-57-6
Molecular formula
HO
InChIKey
TUJKJAMUKRIRHC-UHFFFAOYSA-N
InChI
InChI=1S/HO/h1H
SMILES (canonical and isomeric)
[OH]

Synonyms

  • Hydroxyl radical
  • Hydrogen Oxide
  • oxidanyl
  • lambda1-oxidane
  • hydridooxygen(.)
  • HO(.)
  • (OH)(.)

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
17.01 g/molcalc.
Exact mass
17.0027 Dacalc.
LogP (octanol/water)
-0.18calc.
Topological polar surface area
30 ร…ยฒcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
1calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Hydroxyl suppliers

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

All 7 suppliers
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Hydroxyl 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

Pharmacological actions

  • Oxidants

Pharmacology

Hydroxyl Radical is a monovalent radical consisting of one hydrogen and oxygen atom found in bases, carboxylic acids, and alcohols.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Hydroxyl is traded under.

HS 2853.90Indicative HS code

Phosphides, whether or not chemically defined, excluding ferrophosphorus, other, other

World exports in 2024
$2.45B
โˆ’33.6% vs 2023, imports $816M
2019 to 2024
Top exporters
  1. China68.4%
  2. Israel8.1%
  3. United States4.9%
Top importers
  1. United States19.3%
  2. Japan17.9%
  3. China13.4%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Hydroxyl is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Hydroxyl, based on the data on this page

What is Hydroxyl?

Hydroxyl is a member of reactive oxygen species, an oxygen hydride and an oxygen radical.

What is the CAS number of Hydroxyl?

The CAS registry number of Hydroxyl is 3352-57-6.

What is the molecular formula and weight of Hydroxyl?

The molecular formula of Hydroxyl is HO and its molar mass is 17.01 g/mol.

What is Hydroxyl used for?

Known uses and roles of Hydroxyl include oxidants.

Is Hydroxyl hazardous?

No GHS hazard classification for Hydroxyl is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Hydroxyl?

Hydroxyl is usually classified under HS code 285390 (Phosphides, whether or not chemically defined, excluding ferrophosphorus, otherโ€ฆ). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Hydroxyl?

CompoundList lists 7 suppliers of Hydroxyl in China, Japan, South Korea 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 Hydroxyl?

Suppliers quote Hydroxyl 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 Hydroxyl

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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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