CompoundList
Sign in
Sulfur and phosphorus compounds

Tiron

Also known as Disodium 4,5-dihydroxybenzene-1,3-disulfonate, Sodium 4,5-dihydroxybenzene-1,3-disulfonate, Sodium catechol sulfate

CAS 149-45-1Formula C6H4Na2O8S2Molar mass 314.20 g/molEC 205-741-5
GHS signal word: Warning. Pictograms: Harmful or irritant 10 suppliers listed
Get quotes Compare 10 suppliers
Tiron chemical structure, C6H4Na2O8S2, CAS 149-45-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
149-45-1
Formula
C6H4Na2O8S2
Molar mass
314.20 g/mol
Physical form
Powder
HS code
290899
Category
Sulfur and phosphorus compounds
Illustrative photo, drums, an IBC tote and sacks in a chemical warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Tiron?

Plain description, key identifiers and synonyms

Tiron is an organic molecular entity.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
disodium, 4,5-dihydroxybenzene-1,3-disulfonate
CAS number
149-45-1 CAS number cross-checked
EC number
205-741-5
Molecular formula
C6H4Na2O8S2
UNII
4X87R5T106
MDL number
MFCD00007473
InChIKey
ISWQCIVKKSOKNN-UHFFFAOYSA-L
InChI
InChI=1S/C6H6O8S2.2Na/c7-4-1-3(15(9,10)11)2-5(6(4)8)16(12,13)14;;/h1-2,7-8H,(H,9,10,11)(H,12,13,14);;/q;2*+1/p-2
SMILES (canonical and isomeric)
C1=C(C=C(C(=C1O)O)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

Synonyms

  • Disodium 4,5-dihydroxybenzene-1,3-disulfonate
  • Sodium 4,5-dihydroxybenzene-1,3-disulfonate
  • Sodium catechol sulfate
  • Disodium pyrocatechol-3,5-disulfonate
  • sodium catechol disulfonate
  • 1,2-Dihydroxybenzene-3,5-disulfonic acid disodium salt
  • 3,5-Disulfocatechol disodium salt
  • Sodium pyrocatechol-3,5-disulfonate
  • Sodium 1,2-dihydroxy-3,5-benzenedisulfonate
  • Sodium 1,2-dihydroxybenzenedisulfonate
  • Dihydroxy benzene disulfonate disodium salt
  • Disodium 4,5-dihydroxy-m-benzenedisulfonate
  • 4,5-Dihydroxy-m-benzenedisulfonic acid disodium salt
  • Tiferron
  • Catechol-3,5-disulfonic Acid Disodium Salt
  • 1,3-Benzenedisulfonic acid, 4,5-dihydroxy-, disodium salt
  • Disodium 1,2-dihydroxybenzene-3,5-disulfonate
  • Disodium 4,5-dihydroxy-1,3-benzenedisulfonate
  • Disodium 4,5-dihydroxybenzene-1,3-disulphonate
  • SDD
  • disodium, 4,5-dihydroxybenzene-1,3-disulfonate
  • 4,5-Dihydroxy-1,3-benzenedisulfonic acid disodium salt
  • m-Benzenedisulfonic acid, 4,5-dihydroxy-, disodium salt
  • Pyrocatechol-3,5-disulfonic acid disodium salt
  • 1,2-DIHYDROXYBENZENE-3,5-DISULFONIC ACID,di Na SALT
Show all 37 synonyms
  • Tiron, p.a. 99%
  • 1,3-benzenedisulfonicacid,4,5-dihydroxy-,disodiumsalt
  • 3,5-disulfocatecholdisodiumsalt
  • pyrocatechol-3,5-disodiumsulfonate
  • disodium1,2-dihydroxybenzenedisulfonate
  • Catechol-3,5-disulfonicAcidDisodiumSalt
  • Sodium pyrocatechol-2,4-disulfonate
  • disodium-1,2-dihydroxybenzene-3,5-disulfonate
  • 4,5-dihydroxy-m-benzenedisulfonicacidisodiumsalt
  • 3-benzenedisulfonicacid,4,5-dihydroxy-disodiumsalt
  • 1,3-Benzenedisulfonic acid, 4,5-dihydroxy-, sodium salt (1:2)
  • 4,5-dihydroxybenzene-1,3-disulfonic acid, sodium salt, sodium salt

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
314.20 g/molcalc.
Exact mass
313.9143 Dacalc.
LogP (octanol/water)
-7.09calc.
Topological polar surface area
154.9 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
2calc.
Heavy atoms
18calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
3calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

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

Tiron suppliers

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

All 10 suppliers
10 of 10 offers
  • Mitsuboshi Chemical Co.,Ltd
    Japan ManufacturerUnclaimed profile
    TironGrade, purity and minimum order on request
    Price on request
    View
  • Futurefuel Corporation
    United States, Clayton ManufacturerUnclaimed profile
    TironGrade, purity and minimum order on request
    Price on request
    View
  • Apexmol
    China, ChongqingUnclaimed profile
    TironGrade, purity and minimum order on request
    Price on request
    View
  • Avantor Inc.
    United States, Radnor ManufacturerUnclaimed profile
    TironGrade, purity and minimum order on request
    Price on request
    View
  • Chem-Impex
    United States, Wood DaleUnclaimed profile
    TironGrade, purity and minimum order on request
    Price on request
    View
  • ChemBridge Corporation
    United States, San DiegoUnclaimed profile
    TironGrade, purity and minimum order on request
    Price on request
    View
  • Innovapharm Ltd
    Ukraine, KievUnclaimed profile
    TironGrade, purity and minimum order on request
    Price on request
    View
  • MP Biomedicals
    United States, SolonUnclaimed profile
    TironGrade, purity and minimum order on request
    Price on request
    View
  • Sinfoo Biotech
    China, NanjingUnclaimed profile
    TironGrade, purity and minimum order on request
    Price on request
    View
  • TimTec
    United States, KissimmeeUnclaimed profile
    TironGrade, purity and minimum order on request
    Price on request
    View

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

10 suppliers in 4 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

Tiron 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: Intermediate.

Pharmacological actions

  • Indicators and Reagents

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 Tiron is traded under.

HS 2908.99Indicative HS code

Halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or…

World exports in 2024
$77.7M
+4.6% vs 2023, imports $83.7M
2019 to 2024
Top exporters
  1. China32.2%
  2. India * partner reported22.2%
  3. Spain8.5%
Top importers
  1. United States13.9%
  2. Spain10.6%
  3. Turkey8.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Tiron?

Tiron is an organic molecular entity.

What is the CAS number of Tiron?

The CAS registry number of Tiron is 149-45-1.

What is the molecular formula and weight of Tiron?

The molecular formula of Tiron is C6H4Na2O8S2 and its molar mass is 314.20 g/mol.

What is Tiron used for?

Industrial uses: Intermediate.

Is Tiron hazardous?

Tiron carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Tiron?

Tiron is usually classified under HS code 290899 (Halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Tiron?

CompoundList lists 10 suppliers of Tiron in United States, China, Japan and Ukraine. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Tiron?

Suppliers quote Tiron 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 Tiron

Get quotes for Tiron

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Tiron
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 Tiron 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/tiron-149-45-1" title="Tiron 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 Sulfur and phosphorus compounds or HS code 290899

10 suppliers
Free quotes, contact stays private
Get quotes