2,4-dithiouracil

Modify Date: 2025-08-24 19:43:15

2,4-dithiouracil Structure
2,4-dithiouracil structure
 Common Name 2,4-dithiouracil
CAS Number 2001-93-6 Molecular Weight 144.218
Density 1.5±0.1 g/cm3 Boiling Point 225.6±23.0 °C at 760 mmHg
Molecular Formula C4H4N2S2 Melting Point 279-281 °C (dec.)(lit.)
MSDS Chinese USA Flash Point 90.3±22.6 °C

 Names

Name dithiouracil
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.5±0.1 g/cm3
Boiling Point 225.6±23.0 °C at 760 mmHg
Melting Point 279-281 °C (dec.)(lit.)
Molecular Formula C4H4N2S2
Molecular Weight 144.218
Flash Point 90.3±22.6 °C
Exact Mass 143.981583
PSA 95.76000
LogP 0.30
Vapour Pressure 0.1±0.4 mmHg at 25°C
Index of Refraction 1.776
Storage condition Store Cold

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
YR0175000
CHEMICAL NAME :
Uracil, 2,4-dithio-
CAS REGISTRY NUMBER :
2001-93-6
LAST UPDATED :
199504
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C4-H4-N2-S2
MOLECULAR WEIGHT :
144.22
WISWESSER LINE NOTATION :
T6MYMYJ BUS DUS

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
250 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD277-689 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X1634 No. of Facilities: 201 (estimated) No. of Industries: 5 No. of Occupations: 7 No. of Employees: 743 (estimated) No. of Female Employees: 260 (estimated)

 Safety Information

Hazard Codes Xi: Irritant;
Safety Phrases S24/25
RIDADR NONH for all modes of transport
WGK Germany 3
RTECS YR0175000
HS Code 2933599090

 Synthetic Route

2-Thiouracil structure

2-Thiouracil

CAS#:141-90-2

~99%

2,4-dithiouracil Structure

2,4-dithiouracil

CAS#:2001-93-6

Literature: Lapucha, Andrzej R. Synthesis, 1987 , # 3 p. 256 - 258
2,4-Dichloropyrimidine structure

2,4-Dichloropyr...

CAS#:3934-20-1

~%

2,4-dithiouracil Structure

2,4-dithiouracil

CAS#:2001-93-6

Literature: American Chemical Journal, , vol. 40, p. 557
Uracil structure

Uracil

CAS#:66-22-8

~63%

2,4-dithiouracil Structure

2,4-dithiouracil

CAS#:2001-93-6

Literature: Heravi; Rajabzadeh; Rahimizadeh; Bakavoli; Ghassemzadeh Synthetic Communications, 2001 , vol. 31, # 15 p. 2231 - 2234
2-Chloro-4-methoxypyrimidine structure

2-Chloro-4-meth...

CAS#:22536-63-6

~13%

2,4-dithiouracil Structure

2,4-dithiouracil

CAS#:2001-93-6

Literature: Katritzky, Alan R.; Baykut, Gokhan; Rachwal, Stanislaw; Szafran, Miroslaw; Caster, Kenneth C.; Eyler, John Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1989 , p. 1499 - 1506
Uracil structure

Uracil

CAS#:66-22-8

Decahydronaphthalene structure

Decahydronaphthalene

CAS#:91-17-8

~%

2,4-dithiouracil Structure

2,4-dithiouracil

CAS#:2001-93-6

Literature: Journal of the American Chemical Society, , vol. 69, p. 2138
2,4-Dichloropyrimidine structure

2,4-Dichloropyr...

CAS#:3934-20-1

thiourea structure

thiourea

CAS#:17356-08-0

~%

2,4-dithiouracil Structure

2,4-dithiouracil

CAS#:2001-93-6

Literature: Journal of the Chemical Society, , p. 1218,1221

 Customs

HS Code 2933599090
Summary 2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Articles7

More Articles
Photoelectron spectroscopic study of the negative ions of 4-thiouracil and 2,4-dithiouracil.

J. Chem. Phys. 134(7) , 074304, (2011)

We report the photoelectron spectra of the negative ions of 4-thiouracil (4-TU)(-) and 2,4-dithiouracil (2,4-DTU)(-). Both of these spectra are indicative of valence anions, and they are each dominate...

Electron propagator and coupled-cluster calculations on the photoelectron spectra of thiouracil and dithiouracil anions.

J. Chem. Phys. 134(7) , 074305, (2011)

Electron affinities, vertical electron detachment energies, and isomerization energies of 4-thiouracil, 2-thiouracil, and 2,4-dithiouracil and their valence anions have been calculated with ab initio ...

Photochemistry and electrochemistry of anticancer uracils.

J. Photochem. Photobiol. B, Biol. 117 , 269-77, (2012)

The redox mechanism and electronic absorption behavior of a commercial anticancer drug, 5-fluorouracil (5-FU) and two potential anticancer drugs, 2-thiouracil (2-TU) and dithiouracil (DTU) have been i...

 Synonyms

2,4-dithio-uraci
pyrimidine-2,4-dithione
Pyrimidine-2,4(1H,3H)-dithione
2,4-pyrimidinedithiol
Uracil,2,4-dithio
2,4-dithiouracil
2,4-Dithiopyrimidine
EINECS 217-894-5
pyrimidine-2,4-dithiol
Dithiopyrimidine
MFCD00006042
usafcb-14
4-sulfanyl-2(3H)-pyrimidinethione
Dithiouracil
2,4(1H,3H)-Pyrimidinedithione
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