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N,N'-Diethylthiourea

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N,N'-Diethylthiourea Basic information

Product Name:
N,N'-Diethylthiourea
Synonyms:
  • 1,3-diethyl-2-thio-ure
  • 1,3-diethyl-2-thiourea[qr]
  • 1,3-diethyl-2-thiouree
  • 1,3-diethylthiourea[qr]
  • n,n’-diethylthiocarbamide[qr]
  • n,n’-diethyl-thioure
  • n,n’-diethylthiouree
  • DIETHYL THIOUREA
CAS:
105-55-5
MF:
C5H12N2S
MW:
132.23
EINECS:
203-308-5
Product Categories:
  • Organic Building Blocks
  • Sulfur Compounds
  • Industrial/Fine Chemicals
  • Thioureas
  • bc0001
Mol File:
105-55-5.mol
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N,N'-Diethylthiourea Chemical Properties

Melting point:
76-78 °C(lit.)
Boiling point:
245°C (estimate)
Density 
1,12 g/cm3
vapor pressure 
0.001Pa at 25℃
refractive index 
1.5300 (estimate)
Flash point:
186 °C
storage temp. 
Store below +30°C.
solubility 
42g/l
form 
solid
pka
14.47±0.70(Predicted)
color 
White to Off-White
PH
7 (38g/l, H2O, 20℃)
Water Solubility 
38 g/L (20 ºC)
BRN 
773905
Stability:
Stable. May be air sensitive. Incompatible with strong oxidizing agents.
InChIKey
FLVIGYVXZHLUHP-UHFFFAOYSA-N
LogP
0.57
CAS DataBase Reference
105-55-5(CAS DataBase Reference)
NIST Chemistry Reference
Diethyl-2-thiourea(105-55-5)
IARC
3 (Vol. 79) 2001
EPA Substance Registry System
N,N'-Diethylthiourea (105-55-5)
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Safety Information

Hazard Codes 
Xn,T
Risk Statements 
22-40-45-20/21/22
Safety Statements 
45-36/37-53-24/25
WGK Germany 
2
RTECS 
YS9800000
TSCA 
Yes
HS Code 
29309070
Hazardous Substances Data
105-55-5(Hazardous Substances Data)

MSDS

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N,N'-Diethylthiourea Usage And Synthesis

Description

Diethylthiourea, a thiourea derivative, is used mainly as a rubber chemical, particularly in solid neoprene products.

Chemical Properties

white to buff-coloured solid

Uses

Diethyl thiourea is the inhibitor of corrosion in metal pick/ing solutions; accelerator for mercaptan-modified chloroprene rubber; antidegradant for natural, nitrile-butadiene, styrene-butadiene, and chloroprene rubbers

Uses

N,N′-Diethylthiourea can be used as a reactant to prepare:

  • 3,5-Diethyltetrahydro-4-thioxo-1,3,5-triazine-1(2H)-propanoic acid by condensation reaction with formaldehyde and β-alanine.
  • Methyl 3-ethyl-2-(ethylimino)-3,4-dihydro-4-oxo-2H-1,3-thiazine-6-carboxylate by one-pot reaction with dimethyl acetylenedicarboxylate in the presence of triphenylphosphine catalyst.
  • 2-(Ethylimino)-3-ethyl-thiazolidin-4-one by cyclization reaction with 2-chloroacetic acid.
  • 3-Ethyl-2-(ethylimino)-4-oxo-5-thiazolidineacetamide by condensation reaction with maleimides via Michael-type reaction.

Definition

ChEBI: Thiourea in which each nitogen carries an ethyl substituent.

General Description

Buff solid or white powder.

Air & Water Reactions

N,N'-Diethylthiourea may be sensitive to exposure to air. . Slightly soluble in water.

Reactivity Profile

N,N'-Diethylthiourea is an amide. Amides/imides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides/imides with strong reducing agents. Amides are very weak bases (weaker than water). Imides are less basic yet and in fact react with strong bases to form salts. That is, they can react as acids. Mixing amides with dehydrating agents such as P2O5 or SOCl2 generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx).

Health Hazard

ACUTE/CHRONIC HAZARDS: When heated to decomposition N,N'-Diethylthiourea emits toxic fumes.

Fire Hazard

Flash point data are not available for N,N'-Diethylthiourea, but N,N'-Diethylthiourea is probably combustible.

Flammability and Explosibility

Non flammable

Contact allergens

Diethylthiourea, a thiourea derivative, is used mainly as a rubber chemical, particularly in solid neoprene products.

Safety Profile

Poison by ingestion. Moderately toxic by intraperitoneal route. Questionable carcinogen with experimental carcinogenic data. Mutation data reported. When heated to decomposition it emits very toxic fumes of NOx and SOx

Purification Methods

Crystallise it from *benzene. [Beilstein 4 H 118, 4 I 355, 4 II 610, 4 III 220, 4 IV 375.]

N,N'-Diethylthiourea Preparation Products And Raw materials

Raw materials

N,N'-DiethylthioureaSupplier

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