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| CAS No.: | 64-10-8 |
|---|---|
| Name: | PHENYLUREA |
| Molecular Structure: | |
|
|
|
| Formula: | C7H8 N2 O |
| Molecular Weight: | 136.153 |
| 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 |
| EINECS: | 200-576-5 |
| Density: | 1,302 g/cm3 |
| Melting Point: |
145-147 °C(lit.) |
| Boiling Point: | 238 °C |
| Flash Point: | 238°C |
| Solubility: |
Stability
Toxicology
off-white powder |
| Hazard Symbols: |
|
| Risk Codes: | R22 |
| Safety: | Moderately toxic by ingestion and intraperitoneal routes. When heated to decomposition it emits toxic fumes of NOx. |
| PSA: | 55.12000 |
| LogP: | 1.95050 |
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Chemistry
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
Uses
Phenylurea (CAS NO.64-10-8) is used in organic synthesis.
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.
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. |
Consensus Reports
Reported in EPA TSCA Inventory.
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 
Xn
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
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.