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Heterocyclic building blocks

2,4-Dithiouracil

Also known as Dithiouracil, 2,4-Dithiopyrimidine, 2,4-Pyrimidinedithiol

CAS 2001-93-6Formula C4H4N2S2Molar mass 144.22 g/molEC 217-894-5
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2,4-Dithiouracil chemical structure, C4H4N2S2, CAS 2001-93-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
2001-93-6
Formula
C4H4N2S2
Molar mass
144.22 g/mol
EC number
217-894-5
HS code
293359
Category
Heterocyclic building blocks

What is 2,4-Dithiouracil?

Plain description, key identifiers and synonyms

2,4-Dithiouracil is a chemical substance with the molecular formula C4H4N2S2 and a molar mass of 144.22 g/mol. Its CAS registry number is 2001-93-6. The IUPAC name is 1H-pyrimidine-2,4-dithione.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1H-pyrimidine-2,4-dithione
CAS number
2001-93-6 CAS number cross-checkedOther or deprecated CAS: 107686-58-8, 1193-28-8, 132939-82-3, 132939-84-5, 133039-83-5, 133099-49-7
EC number
217-894-5
Molecular formula
C4H4N2S2
MDL number
MFCD00006042
InChIKey
ZEQIWKHCJWRNTH-UHFFFAOYSA-N
InChI
InChI=1S/C4H4N2S2/c7-3-1-2-5-4(8)6-3/h1-2H,(H2,5,6,7,8)
SMILES (canonical and isomeric)
C1=CNC(=S)NC1=S

Synonyms

  • Dithiouracil
  • 2,4-Dithiopyrimidine
  • 2,4-Pyrimidinedithiol
  • pyrimidine-2,4(1H,3H)-dithione
  • 1H-pyrimidine-2,4-dithione
  • 2,4(1H,3H)-Pyrimidinedithione
  • 2,4-Dimercaptopyrimidine
  • 2,4-Dimercapto pyrimidine
  • Dithiopyrimidine
  • Pyrimidine-2,4-dithiol
  • 2,4-Dithioxopyrimidine
  • USAF CB-14
  • Uracil, 2,4-dithio-
  • Dithiouracil, 98%
  • 1,2,3,4-tetrahydropyrimidine-2,4-dithione
  • Dithiouracil)
  • Uracil,4-dithio-
  • 2,4-dithio-uraci
  • 2.4-Dithiopyrimidine
  • 2,3H)-Pyrimidinedithione
  • 4-sulfanyl-2(3H)-pyrimidinethione
  • 4(3H)-Pyrimidinethione,2-mercapto-(9ci)
  • 2(1H)-pyrimidinethione, 4-mercapto-
  • 2(1H)-pyrimidinethione, 6-mercapto-
  • 4(1H)-pyrimidinethione, 2-mercapto-
Show all 26 synonyms
  • 4(3H)-pyrimidinethione, 2-mercapto-

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
144.22 g/molcalc.
Exact mass
143.9816 Dacalc.
LogP (octanol/water)
1.8calc.
Topological polar surface area
31.58 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
8calc.
Rings
1calc.
Aromatic rings
1calc.
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, S=c1cc[nH]c(=S)[nH]1

S=c1cc[nH]c(=S)[nH]1

1 ring, 8 atoms. This chemical is the scaffold itself.

26 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.

2,4-Dithiouracil suppliers

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2,4-Dithiouracil 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

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 2,4-Dithiouracil is traded under.

HS 2933.59Indicative HS code

Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring, other

World exports in 2024
$18.4B
+10.5% vs 2023, imports $24.8B
2019 to 2024
Top exporters
  1. Ireland43.6%
  2. Switzerland * partner reported26.3%
  3. China7.9%
Top importers
  1. Slovenia30.3%
  2. United States30.1%
  3. Germany15.3%

* Partner reported figures, a lower bound.

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

The HS code shown for 2,4-Dithiouracil is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2,4-Dithiouracil, based on the data on this page

What is 2,4-Dithiouracil?

2,4-Dithiouracil is a chemical substance with the molecular formula C4H4N2S2 and a molar mass of 144.22 g/mol. Its CAS registry number is 2001-93-6. The IUPAC name is 1H-pyrimidine-2,4-dithione.

What is the CAS number of 2,4-Dithiouracil?

The CAS registry number of 2,4-Dithiouracil is 2001-93-6. Other or deprecated CAS numbers: 107686-58-8, 1193-28-8, 132939-82-3.

What is the molecular formula and weight of 2,4-Dithiouracil?

The molecular formula of 2,4-Dithiouracil is C4H4N2S2 and its molar mass is 144.22 g/mol.

What is 2,4-Dithiouracil used for?

Known uses and roles of 2,4-Dithiouracil include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 2,4-Dithiouracil hazardous?

No GHS hazard classification for 2,4-Dithiouracil 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 2,4-Dithiouracil?

2,4-Dithiouracil is usually classified under HS code 293359 (Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 2,4-Dithiouracil?

Post a free request on CompoundList and suppliers of 2,4-Dithiouracil will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 2,4-Dithiouracil?

Suppliers quote 2,4-Dithiouracil 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 2,4-Dithiouracil

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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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