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N-Phenylurea

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N-Phenylurea

EINECS 200-576-5
CAS No. 64-10-8 Density
Solubility

Stability

    Stable. Incompatible with strong oxidizing agents.

Toxicology

    Harmful if swallowed. May be harmful if inhaled orabsorbed through the skin. Toxicology not fully investigated.

    Melting Point

145-147 °C(lit.)

Formula C7H8 N2 O Boiling Point 238 °C
Molecular Weight 136.17 Flash Point
Transport Information Appearance off-white powder
Safety Moderately toxic by ingestion and intraperitoneal routes. When heated to decomposition it emits toxic fumes of NOx. Risk Codes R22   
Molecular Structure Molecular Structure of 64-10-8 (Urea, N-phenyl-) Hazard Symbols
Synonyms

Urea,phenyl- (8CI,9CI); 1-Phenylurea; Ethyl 5-nitro-1H-indole-3-carboxylate;Monophenylurea; N-Phenylurea; NSC 2781; Phenylcarbamide; Phenylurea;Stabilisator VH; Stabilizer VH; VH

 

N-Phenylurea Chemical Properties

IUPAC Name: Phenylurea
Product Name: Phenylurea
The MF of Phenylurea (CAS NO.64-10-8) is C7H8N2O.

                         
The MW of Phenylurea (CAS NO.64-10-8) is 136.15.
Synonyms of Phenylurea (CAS NO.64-10-8): 1-Phenylurea ; Monophenylurea ; N-Phenylurea ; Phenylcarbamide ; Phenylurea ; Stabilisator VH ; Stabilizer VH ; Urea, phenyl-
Stability: Stable. Incompatible with strong oxidizing agents
Solubility in H2O: 10 mg/mL, clear
Apperance: off-white powder
Index of Refraction: 1.638  
EINECS: 200-576-5
Density: 1.241 g/ml 
Flash Point: 97.7 °C
Boiling Point: 238 °C
Melting Point: 145-147 °C
Merck: 14,7319
BRN: 1934615

N-Phenylurea Uses

  Phenylurea (CAS NO.64-10-8) is used in organic synthesis.

N-Phenylurea Production

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.

N-Phenylurea Toxicity Data With Reference

1.    

orl-rat LD50:2000 mg/kg

    IIFBA4    Izvestiya na Instituta po Fiziologiya, Bulgarska Akademiya na Naukite. 12 (1969),195.
2.    

orl-mus LD50:1580 mg/kg

    IIFBA4    Izvestiya na Instituta po Fiziologiya, Bulgarska Akademiya na Naukite. 12 (1969),195.
3.    

ipr-mus LD50:1060 mg/kg

    IIFBA4    Izvestiya na Instituta po Fiziologiya, Bulgarska Akademiya na Naukite. 12 (1969),195.

N-Phenylurea Consensus Reports

Reported in EPA TSCA Inventory.

N-Phenylurea Safety Profile

Moderately toxic by ingestion and intraperitoneal routes. When heated to decomposition it emits toxic fumes of NOx.Safety information of Phenylurea (CAS NO.64-10-8):
Hazard Codes  HarmfulXn
Risk Statements 
22 Harmful if swallowed
Safety Statements 
22 Do not breathe dust
36/37 Wear suitable protective clothing and gloves
WGK Germany  3
RTECS  YU0650000

N-Phenylurea Specification

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.

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