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Sulfates and sulfur salts

Fenton's reagent

Also known as Fenton reagent, hydrogen peroxide, iron(2+), sulfuric acid, Sulfuric acid, iron(2+) salt (1:1), mixt. with hydrogen peroxide

CAS 36047-38-8Formula H4FeO6S+2Molar mass 187.94 g/mol
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Fenton's reagent chemical structure, H4FeO6S+2, CAS 36047-38-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
36047-38-8
Formula
H4FeO6S+2
Molar mass
187.94 g/mol
HS code
283329
Category
Sulfates and sulfur salts

What is Fenton's reagent?

Plain description, key identifiers and synonyms

Fenton's reagent is a chemical substance with the molecular formula H4FeO6S+2 and a molar mass of 187.94 g/mol. Its CAS registry number is 36047-38-8. The IUPAC name is hydrogen peroxide, iron(2+), sulfuric acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
hydrogen peroxide, iron(2+), sulfuric acid
CAS number
36047-38-8
Molecular formula
H4FeO6S+2
InChIKey
MGZTXXNFBIUONY-UHFFFAOYSA-N
InChI
InChI=1S/Fe.H2O4S.H2O2/c;1-5(2,3)4;1-2/h;(H2,1,2,3,4);1-2H/q+2;;
SMILES (canonical and isomeric)
OO.OS(=O)(=O)O.[Fe+2]

Synonyms

  • Fenton reagent
  • hydrogen peroxide, iron(2+), sulfuric acid
  • Sulfuric acid, iron(2+) salt (1:1), mixt. with hydrogen peroxide

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
187.94 g/molcalc.
Exact mass
187.9067 Dacalc.
LogP (octanol/water)
-0.64calc.
Topological polar surface area
115.1 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
0calc.
Heavy atoms
8calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
2calc.
Stereocentres
0calc.
Components
3calc.

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.

Fenton's reagent suppliers

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Fenton's reagent 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

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 Fenton's reagent is traded under.

HS 2833.29Indicative HS code

Sulphates, alums, peroxosulphates (persulphates), other

World exports in 2024
$1.1B
−26.3% vs 2023, imports $1.41B
2019 to 2024
Top exporters
  1. China35.9%
  2. Germany8.8%
  3. Mexico7.6%
Top importers
  1. China16.7%
  2. United States13.5%
  3. Japan10.1%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Fenton's reagent, based on the data on this page

What is Fenton's reagent?

Fenton's reagent is a chemical substance with the molecular formula H4FeO6S+2 and a molar mass of 187.94 g/mol. Its CAS registry number is 36047-38-8. The IUPAC name is hydrogen peroxide, iron(2+), sulfuric acid.

What is the CAS number of Fenton's reagent?

The CAS registry number of Fenton's reagent is 36047-38-8.

What is the molecular formula and weight of Fenton's reagent?

The molecular formula of Fenton's reagent is H4FeO6S+2 and its molar mass is 187.94 g/mol.

What is Fenton's reagent used for?

Known uses and roles of Fenton's reagent include trace minerals in animal feed and nutrition and coagulants in water treatment.

Is Fenton's reagent hazardous?

No GHS hazard classification for Fenton's reagent 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 Fenton's reagent?

Fenton's reagent is usually classified under HS code 283329 (Sulphates, alums, peroxosulphates (persulphates), other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Fenton's reagent?

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What is the price of Fenton's reagent?

Suppliers quote Fenton's reagent 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 Fenton's reagent

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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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