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Sulfates and sulfur salts

Dithionite

Also known as Hydrosulfite, Dithionite dianion, Dithionous acid, ion(2-)

CAS 14844-07-6Formula O4S2-2Molar mass 128.13 g/mol
8 suppliers listed
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Dithionite chemical structure, O4S2-2, CAS 14844-07-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
14844-07-6
Formula
O4S2-2
Molar mass
128.13 g/mol
HS code
283190
Category
Sulfates and sulfur salts

What is Dithionite?

Plain description, key identifiers and synonyms

Dithionite(2-) is a sulfur oxoanion and a sulfur oxide. It is a conjugate base of a dithionite(1-).

Dithionite is an oxyanion of sulfur at the oxidation number +3.

Identifiers

Registry numbers, names and line notations, tap to copy

CAS number
14844-07-6 CAS number cross-checked
Molecular formula
O4S2-2
UNII
17Q56Y5LKH
InChIKey
GRWZHXKQBITJKP-UHFFFAOYSA-L
InChI
InChI=1S/H2O4S2/c1-5(2)6(3)4/h(H,1,2)(H,3,4)/p-2
SMILES (canonical and isomeric)
[O-]S(=O)S(=O)[O-]

Synonyms

  • Hydrosulfite
  • Dithionite dianion
  • Dithionous acid, ion(2-)
  • Dithionite (S2O42-)
  • Hyposulfite
  • dithionite(2-)
  • hydrodisulfite
  • Dithionit
  • bis(dioxidosulfate)(S--S)(2-)
  • [O2SSO2](2-)
  • [S2O4](2-)
  • 2,3-dioxido-1,4-dioxy-2,3-disulfy-[4]catenate(2-)

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
128.13 g/molcalc.
Exact mass
127.9249 Dacalc.
LogP (octanol/water)
-1.34calc.
Topological polar surface area
80.26 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
1calc.
Heavy atoms
6calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
-2calc.
Stereocentres
2calc.

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.

Dithionite suppliers

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

All 8 suppliers
8 of 8 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

8 suppliers in 4 countries

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Dithionite 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

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 Dithionite is traded under.

HS 2831.90Indicative HS code

Dithionites and sulphoxylates, other

World exports in 2024
$19.2M
−6.4% vs 2023, imports $18.5M
2019 to 2024
Top exporters
  1. China71.8%
  2. India * partner reported20.8%
  3. Turkey3.0%
Top importers
  1. Pakistan57.5%
  2. China9.4%
  3. Turkey7.0%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Dithionite?

Dithionite(2-) is a sulfur oxoanion and a sulfur oxide. It is a conjugate base of a dithionite(1-).

What is the CAS number of Dithionite?

The CAS registry number of Dithionite is 14844-07-6.

What is the molecular formula and weight of Dithionite?

The molecular formula of Dithionite is O4S2-2 and its molar mass is 128.13 g/mol.

Is Dithionite hazardous?

No GHS hazard classification for Dithionite 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 Dithionite?

Dithionite is usually classified under HS code 283190 (Dithionites and sulphoxylates, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dithionite?

CompoundList lists 8 suppliers of Dithionite in Japan, India, China and Germany. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Dithionite in India?

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

What is the price of Dithionite?

Suppliers quote Dithionite 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 Dithionite

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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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