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Impurities and reference standards

Dithiodibenzoic acid

Also known as 2,2'-Dithiodibenzoic acid, 2,2'-Dithiosalicylic acid, 2-[(2-Carboxyphenyl)disulfanyl]benzoic acid

CAS 119-80-2Formula C14H10O4S2Molar mass 306.36 g/molEC 204-352-8
GHS signal word: Warning. Pictograms: Harmful or irritant 24 suppliers listed
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Dithiodibenzoic acid chemical structure, C14H10O4S2, CAS 119-80-2
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Powder
Melting point
287 to 290
Solubility
Solubility in water: none
HS code
293090
Category
Impurities and reference standards
Illustrative photo, closed white HDPE bottles and amber jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Dithiodibenzoic acid?

Plain description, key identifiers and synonyms

Dithiodibenzoic acid is a chemical substance with the molecular formula C14H10O4S2 and a molar mass of 306.36 g/mol. Its CAS registry number is 119-80-2. The IUPAC name is 2-[(2-carboxyphenyl)disulfanyl]benzoic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-[(2-carboxyphenyl)disulfanyl]benzoic acid
CAS number
119-80-2 CAS number cross-checked
EC number
204-352-8
Molecular formula
C14H10O4S2
UNII
58MGB5279D
MDL number
MFCD00002465
InChIKey
LBEMXJWGHIEXRA-UHFFFAOYSA-N
InChI
InChI=1S/C14H10O4S2/c15-13(16)9-5-1-3-7-11(9)19-20-12-8-4-2-6-10(12)14(17)18/h1-8H,(H,15,16)(H,17,18)
SMILES (canonical and isomeric)
C1=CC=C(C(=C1)C(=O)O)SSC2=CC=CC=C2C(=O)O

Synonyms

  • 2,2'-Dithiodibenzoic acid
  • 2,2'-Dithiosalicylic acid
  • 2-[(2-Carboxyphenyl)disulfanyl]benzoic acid
  • Benzoic acid, 2,2'-dithiobis-
  • 2,2'-disulfanediyldibenzoic acid
  • Bis(2-carboxyphenyl) disulfide
  • 2,2'-dithiobisbenzoic acid
  • Benzoic acid, dithiobis-
  • Bis(o-carboxylphenyl) disulfide
  • 2,2'-Dithiodi(benzoic acid)
  • 2,2'-Dithiobis(benzoic acid)
  • Diphenyldisulfide-2,2'-dicarboxylic acid
  • Diphenyl disulfide-2,2'-dicarboxylic acid
  • Benzoic acid, 2,2'-dithiodi-
  • bis[2-Carboxyphenyl] disulfide
  • 2,2'-Dithiobis[benzoic acid]
  • Benzoic acid,2'-dithiodi-
  • Benzoic acid,2'-dithiobis-
  • 2,2'-Dithiobenzoic acid
  • 2,2-Dithiosalicylic Acid
  • Bis(o-carboxyphenyl) disulfide
  • 2-((2-Carboxyphenyl)disulfanyl)benzoic acid
  • 2-Carboxyphenyl disulfide
  • 2,2'-Dithiodibenzoesaeure
  • dithiobisbenzoic acid
Show all 37 synonyms
  • Axitinib Impurity N24
  • 2,2'dithiosalicylic acid
  • o,o'-dithiodibenzoic acid
  • 2,2'-Dithiodibenzoicacid
  • 2,2 inverted exclamation mar
  • 2,2 inverted exclamation marka-Dithiodibenzoic acid
  • 4-10-00-00279 (Beilstein Handbook Reference)
  • 2,2'-Disulphanediyldibenzoic acid
  • 2,2'-Dithiodibenzoic acid, 97%
  • 2,2'-Dithiosalicylic acid, 96%
  • Benzoic acid, O,O'-dithiobis-
  • 2,2'-Dithiodibenzoic acid, >=95.0% (NT)

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.
Melting point
287 to 290exp.
Solubility
Solubility in water: noneexp.

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
306.36 g/molcalc.
Exact mass
306.0021 Dacalc.
LogP (octanol/water)
3.88calc.
Topological polar surface area
74.6 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
5calc.
Heavy atoms
20calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
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, c1ccc(SSc2ccccc2)cc1

c1ccc(SSc2ccccc2)cc1

2 rings, 14 atoms, the Diphenyl disulfide ring system.

393 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.
  • H317May cause an allergic skin reaction.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (18)
  • 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.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • 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.
  • P333 + P317If skin irritation or rash 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

Dithiodibenzoic acid suppliers

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All 24 suppliers
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Where suppliers are based

24 suppliers in 10 countries

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Dithiodibenzoic acid price

Indicative price range per kg from live supplier offers

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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

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 Dithiodibenzoic acid is traded under.

HS 2930.90Indicative HS code

Organo-sulphur compounds, other

World exports in 2024
$5.83B
+0.1% vs 2023, imports $5.93B
2019 to 2024
Top exporters
  1. China40.7%
  2. United States10.9%
  3. Japan9.3%
Top importers
  1. United States13.3%
  2. Brazil12.6%
  3. China6.6%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Dithiodibenzoic acid?

Dithiodibenzoic acid is a chemical substance with the molecular formula C14H10O4S2 and a molar mass of 306.36 g/mol. Its CAS registry number is 119-80-2. The IUPAC name is 2-[(2-carboxyphenyl)disulfanyl]benzoic acid.

What is the CAS number of Dithiodibenzoic acid?

The CAS registry number of Dithiodibenzoic acid is 119-80-2.

What is the molecular formula and weight of Dithiodibenzoic acid?

The molecular formula of Dithiodibenzoic acid is C14H10O4S2 and its molar mass is 306.36 g/mol.

Is Dithiodibenzoic acid hazardous?

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

What is the HS code of Dithiodibenzoic acid?

Dithiodibenzoic acid is usually classified under HS code 293090 (Organo-sulphur compounds, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dithiodibenzoic acid?

CompoundList lists 24 suppliers of Dithiodibenzoic acid in China, India, Germany, United States and 6 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Dithiodibenzoic acid in India?

5 suppliers in India list Dithiodibenzoic 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 Dithiodibenzoic acid?

Suppliers quote Dithiodibenzoic 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 Dithiodibenzoic acid

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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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