CompoundList
Sign in
Sulfates and sulfur salts

Bisulfite

Also known as Hydrogen sulfite, hydrogensulfite, Bisulphite

CAS 15181-46-1Formula HO3S-Molar mass 81.07 g/mol
52 suppliers listed
Get quotes Compare 52 suppliers
Bisulfite chemical structure, HO3S-, CAS 15181-46-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
15181-46-1
Formula
HO3S-
Physical form
Liquid
HS code
283220
Category
Sulfates and sulfur salts
UN number
UN 2693
Illustrative photo, closed blue jerry cans in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Bisulfite?

Plain description, key identifiers and synonyms

Hydrogensulfite is a sulfur oxoanion. It has a role as a mouse metabolite, a Saccharomyces cerevisiae metabolite and a human metabolite. It is a conjugate base of a sulfurous acid. It is a conjugate acid of a sulfite.

Bisulfite is a sulfur oxoanion.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
hydrogen sulfite
CAS number
15181-46-1 CAS number cross-checked
Molecular formula
HO3S-
UNII
OJ9787WBLU
InChIKey
LSNNMFCWUKXFEE-UHFFFAOYSA-M
InChI
InChI=1S/H2O3S/c1-4(2)3/h(H2,1,2,3)/p-1
SMILES (canonical and isomeric)
OS(=O)[O-]

Synonyms

  • Hydrogen sulfite
  • hydrogensulfite
  • Bisulphite
  • Hydrosulfite anion
  • Hydrogen sulfite(1-)
  • Sulfite, hydrogen
  • sulfonic acid
  • bisulfite ion
  • Sulfurous acid, ion(1-)
  • Sulfite LYE
  • Sulfite (HSO3)-
  • Sulfite (HSO3 1-)
  • Sulfonsaeure
  • sulphonic acid
  • acide sulfonique
  • hydrogensulfite(1-)
  • monohydrogentrioxosulfate
  • HSHO3
  • hydrogentrioxosulfate(IV)
  • hydrogentrioxosulfate(1-)
  • hydridohydroxidodioxidosulfur
  • hydroxidodioxidosulfate(1-)
  • hydrogen(trioxidosulfate)(1-)
  • [SHO2(OH)]
  • HSO3(-)
Show all 26 synonyms
  • [SO2(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

Physical form
Liquidexp.

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
81.07 g/molcalc.
Exact mass
80.9652 Dacalc.
LogP (octanol/water)
-0.66calc.
Topological polar surface area
60.36 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
4calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
-1calc.
Stereocentres
1calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS classification
Hazard pictograms
UN number
UN 2693

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

Full safety data and first aid

Bisulfite suppliers

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

All 52 suppliers
30 of 30 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

52 suppliers in 18 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

Bisulfite 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

  • Saccharomyces cerevisiae metabolite
  • animal metabolite
  • eukaryotic metabolite
  • fungal metabolite
  • human metabolite
  • mammalian metabolite
  • metabolite
  • mouse metabolite

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 Bisulfite is traded under.

HS 2832.20Indicative HS code

Sulphites, thiosulphates, other sulphites

World exports in 2024
$39.4M
−42.1% vs 2023, imports $68.4M
2019 to 2024
Top exporters
  1. United States50.3%
  2. United Kingdom8.7%
  3. India * partner reported7.1%
Top importers
  1. Mexico24.8%
  2. Spain9.3%
  3. Turkey6.2%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Bisulfite?

Hydrogensulfite is a sulfur oxoanion. It has a role as a mouse metabolite, a Saccharomyces cerevisiae metabolite and a human metabolite. It is a conjugate base of a sulfurous acid. It is a conjugate acid of a sulfite.

What is the CAS number of Bisulfite?

The CAS registry number of Bisulfite is 15181-46-1.

What is the molecular formula and weight of Bisulfite?

The molecular formula of Bisulfite is HO3S- and its molar mass is 81.07 g/mol.

What is Bisulfite used for?

Known uses and roles of Bisulfite include saccharomyces cerevisiae metabolite, animal metabolite, eukaryotic metabolite, fungal metabolite, human metabolite and 3 more.

Is Bisulfite hazardous?

No GHS hazard classification for Bisulfite 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 Bisulfite?

Bisulfite is usually classified under HS code 283220 (Sulphites, thiosulphates, other sulphites). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Bisulfite?

CompoundList lists 52 suppliers of Bisulfite in India, South Africa, China, United Kingdom and 14 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Bisulfite in India?

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

What is the price of Bisulfite?

Suppliers quote Bisulfite 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 Bisulfite

Get quotes for Bisulfite

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Bisulfite
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 Bisulfite 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/bisulfite-15181-46-1" title="Bisulfite 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 283220

52 suppliers
Free quotes, contact stays private
Get quotes