CompoundList
Sign in
Inorganic acids

Thiosulfuric acid

Also known as Monosulfanemonosulfonic acid, Thiosulfuric acid (H2S2O3), sulfurothioic acid

CAS 13686-28-7Formula H2O3S2Molar mass 114.15 g/mol
1 supplier listed
Get quotes See the supplier
Thiosulfuric acid chemical structure, H2O3S2, CAS 13686-28-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
13686-28-7
Formula
H2O3S2
Molar mass
114.15 g/mol
HS code
281119
Category
Inorganic acids

What is Thiosulfuric acid?

Plain description, key identifiers and synonyms

Sulfurothioic S-acid is a thiosulfuric acid. It has a role as a mouse metabolite. It is a conjugate acid of a hydroxidodioxidosulfidosulfate(1-). It is a tautomer of a sulfurothioic O-acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
sulfurothioic O-acid
CAS number
13686-28-7 CAS number cross-checkedOther or deprecated CAS: 14383-50-7
Molecular formula
H2O3S2
UNII
7K79Y2EKKP
InChIKey
DHCDFWKWKRSZHF-UHFFFAOYSA-N
InChI
InChI=1S/H2O3S2/c1-5(2,3)4/h(H2,1,2,3,4)
SMILES (canonical and isomeric)
OS(=O)(=S)O

Synonyms

  • Monosulfanemonosulfonic acid
  • Thiosulfuric acid (H2S2O3)
  • sulfurothioic acid
  • sulfurothioic O-acid
  • sulfurothioic S-acid
  • dihydroxidooxidosulfidosulfur
  • mercaptosulfonic acid
  • Sulfurothioic O,S-acid
  • hydroxidodioxidosulfanidosulfur
  • [SO(OH)2S]
  • [SO2(OH)(SH)]

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
114.15 g/molcalc.
Exact mass
113.9445 Dacalc.
LogP (octanol/water)
-0.32calc.
Topological polar surface area
57.53 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
5calc.
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.

Thiosulfuric acid suppliers

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

See the supplier

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

1 supplier in 1 country

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

Thiosulfuric acid 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

Roles

  • animal metabolite
  • eukaryotic metabolite
  • mammalian metabolite
  • metabolite
  • mouse metabolite

Pharmacology

Thiosulfuric acid is an Antidote.

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 Thiosulfuric acid is traded under.

HS 2811.19Indicative HS code

Inorganic acids, other than hydrogen fluoride

World exports in 2024
$494M
+6.5% vs 2023, imports $458M
2019 to 2024
Top exporters
  1. China24.9%
  2. Israel16.0%
  3. Jordan * partner reported11.7%
Top importers
  1. China29.3%
  2. United States16.2%
  3. Germany7.0%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Thiosulfuric acid, based on the data on this page

What is Thiosulfuric acid?

Sulfurothioic S-acid is a thiosulfuric acid. It has a role as a mouse metabolite. It is a conjugate acid of a hydroxidodioxidosulfidosulfate(1-). It is a tautomer of a sulfurothioic O-acid.

What is the CAS number of Thiosulfuric acid?

The CAS registry number of Thiosulfuric acid is 13686-28-7. Other or deprecated CAS numbers: 14383-50-7.

What is the molecular formula and weight of Thiosulfuric acid?

The molecular formula of Thiosulfuric acid is H2O3S2 and its molar mass is 114.15 g/mol.

What is Thiosulfuric acid used for?

Known uses and roles of Thiosulfuric acid include animal metabolite, eukaryotic metabolite, mammalian metabolite, metabolite and mouse metabolite.

Is Thiosulfuric acid hazardous?

No GHS hazard classification for Thiosulfuric acid 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 Thiosulfuric acid?

Thiosulfuric acid is usually classified under HS code 281119 (II. INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Thiosulfuric acid?

CompoundList lists 1 supplier of Thiosulfuric acid in India. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Thiosulfuric acid in India?

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

What is the price of Thiosulfuric acid?

Suppliers quote Thiosulfuric acid 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 Thiosulfuric acid

Get quotes for Thiosulfuric acid

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Thiosulfuric acid
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 Thiosulfuric acid 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/thiosulfuric-acid-13686-28-7" title="Thiosulfuric acid 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 Inorganic acids or HS code 281119

1 supplier
Free quotes, contact stays private
Get quotes