Basic information Safety Supplier Related
ChemicalBook >  Product Catalog >  Chemical Reagents >  Organic reagents >  Urea >  Phenylurea

Phenylurea

Basic information Safety Supplier Related

Phenylurea Basic information

Product Name:
Phenylurea
Synonyms:
  • 1-Phenylurea
  • Monophenylurea
  • N-PHENYLUREA
  • PHENYLCARBAMIDE
  • PHENYLUREA
  • phenyl-ure
  • phenylureapesticide,liquid,flammable,poisonous
  • phenylureapesticide,liquid,poisonous
CAS:
64-10-8
MF:
C7H8N2O
MW:
136.15
EINECS:
200-576-5
Product Categories:
  • Bioactive Small Molecules
  • Building Blocks
  • Carbonyl Compounds
  • Cell Biology
  • Chemical Synthesis
  • Organic Building Blocks
  • P
  • Ureas
Mol File:
64-10-8.mol
More
Less

Phenylurea Chemical Properties

Melting point:
145-147 °C(lit.)
Boiling point:
238 °C
Density 
1,302 g/cm3
vapor density 
>1 (vs air)
refractive index 
1.5769 (estimate)
Flash point:
238°C
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
solubility 
H2O: 10 mg/mL, clear
pka
13.37±0.50(Predicted)
form 
Powder, Crystals and/or Chunks
color 
White to light yellow
Water Solubility 
Soluble in water.
Merck 
14,7319
BRN 
1934615
Stability:
Stable. Incompatible with strong oxidizing agents.
InChIKey
LUBJCRLGQSPQNN-UHFFFAOYSA-N
CAS DataBase Reference
64-10-8(CAS DataBase Reference)
EPA Substance Registry System
Urea, phenyl- (64-10-8)
More
Less

Safety Information

Hazard Codes 
Xn
Risk Statements 
22
Safety Statements 
22-36/37-24/25
WGK Germany 
3
RTECS 
YU0650000
TSCA 
Yes
HS Code 
29242100
Toxicity
LD50 oral in rat: 2gm/kg

MSDS

More
Less

Phenylurea Usage And Synthesis

Chemical Properties

Colorless needle-like crystals or off-white powder. Melting point 147°C(decomposition), soluble in hot water, hot alcohol, ether, ethyl acetate and acetic acid.

Uses

Phenylureas are commonly used soil-applied herbicides for control of grass and small-seeded broadleaf weeds.

Uses

Phenyl urea is used in organic synthesis. It acts as an efficient ligand for palladium-catalyzed Heck and Suzuki reactions of aryl bromides and iodides.

Preparation

Phenylurea is synthesized by the reaction of aniline and urea. Put urea, hydrochloric acid and aniline into the reaction pot, heat and stir, reflux at 100-104°C for 1 hour, add water and stir, cool, filter, wash the filter cake with water, and dry to obtain the finished product of phenylurea.

Application

Phenyl urea pesticide, liquid, poisonous appears as a liquid dissolved or suspended in a liquid carrier. Contains any of several related compounds (Diuron, Fenuron, Linuron, Neburon, Siduron, Monuron) formally derived from urea. Carrier is water emulsifiable. Toxic by inhalation, skin absorption, or ingestion.

Definition

ChEBI: 1-Phenylurea is a member of ureas.

General Description

A solid or liquid absorbed on a dry carrier. A wettable powder. Contains any of several related products (Diuron, Fenuron, Linuron, Monuron, Neburon, Siduron) formally derived from urea. Toxic by inhalation, skin absorption, or ingestion. Obtain the technical name of the specific pesticide from the shipping papers and contact CHEMTREC, 800-424-9300 for response information.

Reactivity Profile

Organic 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). Contains any of several related compounds (Diuron, Fenuron, Linuron, Neburon, Siduron, Monuron) formally derived from urea.

Health Hazard

Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Fire Hazard

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Containers may explode when heated. Runoff may pollute waterways.

Purification Methods

Crystallise the urea from boiling water (10mL/g) or amyl alcohol (m 149o). Dry it in a steam oven at 100o. The 1:1 resorcinol complex has m 115o (from EtOAc/*C6H6). [Beilstein 12 H 346, 12 II 204, 12 III 760, 12 IV 734.]

Phenylurea Preparation Products And Raw materials

Preparation Products

PhenylureaSupplier

Speranza Chemical Co., Ltd. Gold
Tel
0755-21030354 18126410231
Email
sales@speranzachem.com
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Email
jkinfo@jkchemical.com
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Email
3bsc@sina.com
future industrial shanghai co., ltd
Tel
400-0066400 13621662912
Email
sales@jonln.com
Alfa Aesar
Tel
400-6106006
Email
saleschina@alfa-asia.com