Global Information Lookup Global Information

Ethylene thiourea information


Ethylene thiourea
Names
Preferred IUPAC name
Imidazolidine-2-thione
Other names
1,3-Ethylene-2-thiourea, N,N-Ethylenethiourea
Identifiers
CAS Number
  • 96-45-7 checkY
3D model (JSmol)
  • Interactive image
ChemSpider
  • 2005851
ECHA InfoCard 100.002.280 Edit this at Wikidata
PubChem CID
  • 2723650
UNII
  • 24FOJ4N18S checkY
CompTox Dashboard (EPA)
  • DTXSID5020601 Edit this at Wikidata
InChI
  • InChI=1S/C3H6N2S/c6-3-4-1-2-5-3/h1-2H2,(H2,4,5,6)
    Key: PDQAZBWRQCGBEV-UHFFFAOYSA-N
  • InChI=1/C3H6N2S/c6-3-4-1-2-5-3/h1-2H2,(H2,4,5,6)
    Key: PDQAZBWRQCGBEV-UHFFFAOYAQ
SMILES
  • C1CNC(=S)N1
Properties
Chemical formula
C3H6N2S
Molar mass 102.16 g·mol−1
Appearance White solid
Odor Faint, amine-like
Melting point 203 °C (397 °F; 476 K)
Boiling point 347.18 °C (656.92 °F; 620.33 K)
Solubility in water
2% (30 °C)[1]
Vapor pressure 16 mmHg (20 °C)[1]
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
combustible[1]
Flash point 252.2 °C (486.0 °F; 525.3 K)
Lethal dose or concentration (LD, LC):
LD50 (median dose)
1832 mg/kg (oral, rat)[2]
NIOSH (US health exposure limits):
PEL (Permissible)
None[1]
REL (Recommended)
Ca Use encapsulated form.[1]
IDLH (Immediate danger)
Ca [N.D.][1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Ethylene thiourea (ETU) is an organosulfur compound with the formula C3H6N2S. It is an example of an N,N-disubstituted thiourea. It is a white solid. It is synthesized by treating ethylenediamine with carbon disulfide.[3]

Ethylene thioureas are an excellent accelerant of vulcanization of neoprene rubbers. In commercial use is the N,N'-diphenylethylenethiourea. Due to reproductive toxicity, carcinogenicity, and mutagenicity, alternatives are being sought to the ethylenethioureas. One candidate replacement is N-methyl-2-thiazolidinethione.[4]

Ethylene thiourea can be used as a biomarker of exposure to ethylenebisdithiocarbamates (EBDTCs), which are frequently employed as fungicides in agriculture, mainly on fruits, vegetables and ornamental plants.[5]

  1. ^ a b c d e f NIOSH Pocket Guide to Chemical Hazards. "#0276". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ https://chem.nlm.nih.gov/chemidplus/rn/96-45-7 [dead link]
  3. ^ C. F. H. Allen; C. O. Edens; James VanAllan. "Ethylene Thiourea". Organic Syntheses; Collected Volumes, vol. 3, p. 394.
  4. ^ Rüdiger Schubart (2000). "Dithiocarbamic Acid and Derivatives". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a09_001. ISBN 3527306730.
  5. ^ Martínez Vidal, José L.; Frenich, Antonia Garrido (2005). Pesticide Protocols. Springer Science & Business Media. p. 79. ISBN 9781592599295. ethylene thiourea.

and 27 Related for: Ethylene thiourea information

Request time (Page generated in 0.8204 seconds.)

Ethylene thiourea

Last Update:

Ethylene thiourea (ETU) is an organosulfur compound with the formula C3H6N2S. It is an example of an N,N-disubstituted thiourea. It is a white solid....

Word Count : 248

Thioureas

Last Update:

to give thioureas: HNR2 + S=C=NR' → S=C(NR2)(NHR') Cyclic thioureas are prepared by transamidation of thiourea with diamines. Ethylene thiourea is synthesized...

Word Count : 595

Ethylene oxide

Last Update:

is to reverse the ethylene oxide synthesis reaction. Thiocyanate ions or thiourea transform ethylene oxide into thiirane (ethylene sulfide): (CH2CH2)O...

Word Count : 11529

Seed

Last Update:

use of plant growth regulators, such as gibberellins, cytokinins, ethylene, thiourea, sodium hypochlorite, and others. Some seeds germinate best after...

Word Count : 9424

Neoprene

Last Update:

dermatitis from thiourea residues left from its production. The most common accelerator in the vulcanization of polychloroprene is ethylene thiourea (ETU), which...

Word Count : 1766

Aerial application

Last Update:

Donna (2014-12-01). "Aerial Application of Mancozeb and Urinary Ethylene Thiourea (ETU) Concentrations among Pregnant Women in Costa Rica: The Infants'...

Word Count : 1128

Vulcanization

Last Update:

are cured and the most important accelerant has been found to be ethylene thiourea (ETU), which, although being an excellent and proven accelerator for...

Word Count : 1261

ETU

Last Update:

Energy transfer upconversion Electrical Trades Union (disambiguation) Ethylene thiourea, a fungicide and pesticide European Taekwondo Union European Triathlon...

Word Count : 124

California Proposition 65 list of chemicals

Last Update:

ether acetate 110-49-6 Ethyleneimine (Aziridine) 151-56-4 Ethylene oxide 75-21-8 Ethylene thiourea 96-45-7 Ethyl methanesulfonate 62-50-0 Etodolac 41340-25-4...

Word Count : 211

National Emissions Standards for Hazardous Air Pollutants

Last Update:

occur. For example, KCN or Ca(CN)2 ^2 Includes mono- and di- ethers of ethylene glycol, diethylene glycol, and triethylene glycol R-(OCH2CH2)n -OR' where...

Word Count : 772

Episulfide

Last Update:

general synthesis of episulfides from epoxides using alkali thiocyanates and thiourea. Following the lead of Dachlauer and Jackel, contemporary routes to episulfides...

Word Count : 561

Epoxide

Last Update:

oxides. Thus, the epoxide of ethylene (C2H4) is ethylene oxide (C2H4O). Many compounds have trivial names; for instance, ethylene oxide is called "oxirane"...

Word Count : 2319

EPA list of extremely hazardous substances

Last Update:

Thiocarbazide Thiofanox Thionazin Thiophenol Thiosemicarbazide Thiourea, (2-chlorophenyl)- Thiourea, (2-methylphenyl)- Titanium tetrachloride Toluene 2,4-diisocyanate...

Word Count : 825

Cleaning agent

Last Update:

silver sulfide, which is removable via silver-specific complexants such as thiourea. Stainless steel, nickel, and chromium cleaners contain lactic, citric...

Word Count : 1320

Maleic acid

Last Update:

isomerization, is catalysed by a variety of reagents, such as mineral acids and thiourea. Again, the large difference in water solubility makes fumaric acid purification...

Word Count : 787

Tizanidine

Last Update:

alkaline hydrolysis to form a thiourea. This was activated as its isothiuronium salt before being treated with ethylene diamine to give tizanidine. "Zanaflex...

Word Count : 972

Ozonolysis

Last Update:

commonly used than oxidative conditions. The use of triphenylphosphine, thiourea, zinc dust, or dimethyl sulfide produces aldehydes or ketones. While the...

Word Count : 1743

Thiol

Last Update:

Instead, alkyl halides are converted to thiols via an S-alkylation of thiourea. This multistep, one-pot process proceeds via the intermediacy of the isothiouronium...

Word Count : 3885

IARC group 3

Last Update:

5'-Tetrachlorobenzidine Tetrakis(hydroxymethyl)phosphonium salts Theobromine Theophylline Thiourea Thiram Toluene Toremifene Toxins derived from Fusarium graminearum, F....

Word Count : 1536

Methanethiol

Last Update:

impractical, it can be prepared by the reaction of methyl iodide with thiourea. Methanethiol is mainly used to produce the essential amino acid methionine...

Word Count : 1247

Sulfur vulcanization

Last Update:

thio-carbonyl species such as thiurams, dithiocarbamates, xanthates and organic thioureas; aromatic guanidines are also used. These compounds need to be combined...

Word Count : 3184

Thiocarbonic acid

Last Update:

ethylene trithiocarbonate (S=CS2(CH2)2). Oxalyl chloride gives oxalyl trithiocarbonate (S=CS2(C=O)2). Some of the organic trithiocarbonates Ethylene trithiocarbonate...

Word Count : 474

Catalysis

Last Update:

application of covalent (e.g., proline, DMAP) and non-covalent (e.g., thiourea organocatalysis) organocatalysts referring to the preferred catalyst-substrate...

Word Count : 5012

Pyrimidine

Last Update:

with diamines for instance the synthesis of 2-thio-6-methyluracil from thiourea and ethyl acetoacetate or the synthesis of 4-methylpyrimidine with 4...

Word Count : 2105

Cyanamide

Last Update:

hydrogen sulfide, and hydrogen selenide react with cyanamide to give urea, thiourea, and selenourea, respectively: H2NCN + H2E → H2NC(E)NH2 (E = O, S, Se)...

Word Count : 1613

Carbodiimide

Last Update:

cyanamide. A classic route to carbodiimides involves dehydrosulfurization of thioureas. A typical reagent for this process is mercuric oxide: (R(H)N)2CS + HgO...

Word Count : 1599

Iodine

Last Update:

determining carbon monoxide concentration. It also oxidises nitrogen oxide, ethylene, and hydrogen sulfide. It reacts with sulfur trioxide and peroxydisulfuryl...

Word Count : 11802

PDF Search Engine © AllGlobal.net