CompoundList
Sign in
Sulfates and sulfur salts

Pyrite

Also known as Pyrite (FeS2), Schwefelkies, Eisenkies

CAS 1309-36-0Formula FeS2Molar mass 119.98 g/molEC 215-167-7
9 suppliers listed
Get quotes Compare 9 suppliers
Pyrite chemical structure, FeS2, CAS 1309-36-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
1309-36-0
Formula
FeS2
Molar mass
119.98 g/mol
Physical form
Powder
HS code
283090
Category
Sulfates and sulfur salts
Illustrative photo, a shrink wrapped pallet of kraft paper sacks in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Pyrite?

Plain description, key identifiers and synonyms

Pyrite is an iron(II) disulfide mineral.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
bis(sulfanylidene)iron
CAS number
1309-36-0 CAS number cross-checkedOther or deprecated CAS: 12068-85-8
EC number
215-167-7
Molecular formula
FeS2
MDL number
MFCD00064690
InChIKey
NFMAZVUSKIJEIH-UHFFFAOYSA-N
InChI
InChI=1S/Fe.2S
SMILES (canonical and isomeric)
S=[Fe]=S

Synonyms

  • Pyrite (FeS2)
  • Schwefelkies
  • Eisenkies
  • Pirita amarilla
  • Fe-S2 iron disulfide of pyrite
  • Iron disulfide
  • Iron sulfide (FeS2)
  • bis(sulfanylidene)iron
  • Bis(sulfido)iron
  • Iron(II) disulfide (isometric)
  • iron(IV) sulfide
  • Iron disulfide (Iron pyrite)
  • Pyrite, naturally occurring mineral, grains,
  • Pyrite, naturally occurring mineral, grains, approximately 0.06-0.19in
  • Iron(II) disulfide, Ferrous disulfide, Iron disulphide, Marcasite (CAS 1317-66-4), Hydropyrite, Iron(2+) disulfide, 23949-99-7, 58440-06-5

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
119.98 g/molcalc.
Exact mass
119.8791 Dacalc.
LogP (octanol/water)
1.29calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
3calc.
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.

Pyrite suppliers

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

All 9 suppliers
9 of 9 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

9 suppliers in 7 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

Pyrite 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

Industrial uses: Other.

Roles

  • catalyst
  • reducing agent

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 Pyrite is traded under.

HS 2830.90Indicative HS code

Sulphides, polysulphides, whether or not chemically defined, other

World exports in 2024
$382M
+2.0% vs 2023, imports $246M
2019 to 2024
Top exporters
  1. Austria33.1%
  2. Philippines31.4%
  3. Germany9.1%
Top importers
  1. Germany12.7%
  2. South Korea11.7%
  3. China10.7%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Pyrite?

Pyrite is an iron(II) disulfide mineral.

What is the CAS number of Pyrite?

The CAS registry number of Pyrite is 1309-36-0. Other or deprecated CAS numbers: 12068-85-8.

What is the molecular formula and weight of Pyrite?

The molecular formula of Pyrite is FeS2 and its molar mass is 119.98 g/mol.

What is Pyrite used for?

Industrial uses: Other.

Is Pyrite hazardous?

No GHS hazard classification for Pyrite 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 Pyrite?

Pyrite is usually classified under HS code 283090 (Sulphides, polysulphides, whether or not chemically defined, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Pyrite?

CompoundList lists 9 suppliers of Pyrite in United States, Canada, China, Germany and 3 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Pyrite in India?

1 supplier in India list Pyrite on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Pyrite?

Suppliers quote Pyrite 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 Pyrite

Get quotes for Pyrite

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Pyrite
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 Pyrite 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/pyrite-1309-36-0" title="Pyrite 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 Sulfates and sulfur salts or HS code 283090

9 suppliers
Free quotes, contact stays private
Get quotes