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Screening compounds

Difetarsone

Also known as Difetarsona, Difetarsonum, Diphetarson

CAS 3639-19-8Formula C14H18As2N2O6Molar mass 460.15 g/molEC 222-866-0
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Difetarsone chemical structure, C14H18As2N2O6, CAS 3639-19-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
3639-19-8
Formula
C14H18As2N2O6
Molar mass
460.15 g/mol
EC number
222-866-0
HS code
293190
Category
Screening compounds

What is Difetarsone?

Plain description, key identifiers and synonyms

Difetarsone is an aralkylamine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
[4-[2-(4-arsonoanilino)ethylamino]phenyl]arsonic acid
CAS number
3639-19-8 CAS number cross-checked
EC number
222-866-0
Molecular formula
C14H18As2N2O6
UNII
G4G9J3Q65W
InChIKey
YQVALJGIKVYRNI-UHFFFAOYSA-N
InChI
InChI=1S/C14H18As2N2O6/c19-15(20,21)11-1-5-13(6-2-11)17-9-10-18-14-7-3-12(4-8-14)16(22,23)24/h1-8,17-18H,9-10H2,(H2,19,20,21)(H2,22,23,24)
SMILES (canonical and isomeric)
C1=CC(=CC=C1NCCNC2=CC=C(C=C2)[As](=O)(O)O)[As](=O)(O)O

Synonyms

  • Difetarsona
  • Difetarsonum
  • Diphetarson
  • N,N-Ethylenediarsanilic acid
  • Difetarsone (INN)
  • Rp 4763 anhydrous free acid
  • rp-4763 Anhydrous free acid
  • Difetarsonum (INN-Latin)
  • Difetarsona (INN-Spanish)
  • RP 4763 [as sodium salt]
  • [4-({2-[(4-arsonophenyl)amino]ethyl}amino)phenyl]arsonic acid
  • Rp 4763 (as sodium salt)
  • Rp 4763 [as sodium salt)
  • (4-((2-((4-arsonophenyl)amino)ethyl)amino)phenyl)arsonic acid
  • [4-[2-(4-arsonoanilino)ethylamino]phenyl]arsonic acid
  • Benarsal, Diphetarsone, RP 6753
  • Anhydrous difetarsone sodium
  • As,As'-[1,2-Ethanediylbis(imino-4,1-phenylene)]bisarsonic acid
  • 1,2-di(4-arsonophenylamino)ethane decahydrate
  • ((ethane-1,2-diylbis(azanediyl))bis(4,1-phenylene))diarsonic acid
  • [Ethane-1,2-diylbis(azanediyl-4,1-phenylene)]bis(arsonic acid)

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
460.15 g/molcalc.
Exact mass
459.9597 Dacalc.
LogP (octanol/water)
-1.67calc.
Topological polar surface area
139.1 Ųcalc.
Hydrogen bond donors
6calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
7calc.
Heavy atoms
24calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.14calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)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(NCCNc2ccccc2)cc1

c1ccc(NCCNc2ccccc2)cc1

2 rings, 16 atoms, the N,N'-Diphenylethylenediamine ring system.

81 other chemicals share this scaffold

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.

Difetarsone suppliers

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

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Difetarsone 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

Roles

  • antiamoebic agent
  • antiinfective agent
  • antiparasitic agent
  • pharmaceutical

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 Difetarsone is traded under.

HS 2931.90Indicative HS code

Organo-inorganic compounds, other than tetramethyl lead, tetraethyl lead, tributyltin compounds…

World exports in 2024
$3.97B
+5.3% vs 2023, imports $3.93B
2019 to 2024
Top exporters
  1. China28.3%
  2. United States15.6%
  3. Germany15.1%
Top importers
  1. United States14.6%
  2. China13.0%
  3. South Korea8.5%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Difetarsone?

Difetarsone is an aralkylamine.

What is the CAS number of Difetarsone?

The CAS registry number of Difetarsone is 3639-19-8.

What is the molecular formula and weight of Difetarsone?

The molecular formula of Difetarsone is C14H18As2N2O6 and its molar mass is 460.15 g/mol.

What is Difetarsone used for?

Known uses and roles of Difetarsone include building blocks in research and laboratory, screening compounds in research and laboratory, antiamoebic agent, antiinfective agent, antiparasitic agent and 1 more.

Is Difetarsone hazardous?

No GHS hazard classification for Difetarsone 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 Difetarsone?

Difetarsone is usually classified under HS code 293190 (X. ORGANO-INORGANIC COMPOUNDS, HETEROCYCLIC COMPOUNDS, NUCLEIC ACIDS AND THEIR SALTS…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Difetarsone?

Post a free request on CompoundList and suppliers of Difetarsone will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Difetarsone?

Suppliers quote Difetarsone 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 Difetarsone

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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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