Phenylurea
- CAS No.
- 64-10-8
- Chemical Name:
- Phenylurea
- Synonyms
- 1-Phenylurea;VH;N-PHENYLUREA;Urea, N-phenyl-;phenyl-ure;PHENYLUREA;stabilizervh;Urea,phenyl-;AKOS B029810;Stabilizer VH
- CBNumber:
- CB2252571
- Molecular Formula:
- C7H8N2O
- Molecular Weight:
- 136.15
- MDL Number:
- MFCD00007944
- MOL File:
- 64-10-8.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| N-Phenylurea 97% | P36959 | 100g | $28.6 |
| N-Phenylurea 97% | P36959 | 500g | $97 |
| Phenylurea >98.0%(HPLC)(N) | P0247 | 25g | $30 |
| Phenylurea >98.0%(HPLC)(N) | P0247 | 100g | $92 |
| 1-Phenylurea ≥98% | CS-W017760 | 100g | $12 |
| More product size | |||
| 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. |
| InChI | 1S/C7H8N2O/c8-7(10)9-6-4-2-1-3-5-6/h1-5H,(H3,8,9,10) |
| InChIKey | LUBJCRLGQSPQNN-UHFFFAOYSA-N |
| SMILES | NC(=O)Nc1ccccc1 |
| CAS DataBase Reference | 64-10-8(CAS DataBase Reference) |
| FDA UNII | 862I85399W |
| EPA Substance Registry System | Urea, phenyl- (64-10-8) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319 | |||||||||
| Precautionary statements | P264-P270-P280-P301+P312+P330-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P501-P301+P312a-P330-P501a | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 22 | |||||||||
| Safety Statements | 22-36/37-24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | YU0650000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29242100 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral | |||||||||
| Toxicity | LD50 oral in rat: 2gm/kg | |||||||||
| NFPA 704 |
|
Phenylurea price More Price(40)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | P36959 | N-Phenylurea 97% | 64-10-8 | 100g | $28.6 | 2026-04-30 | Buy |
| Sigma-Aldrich | P36959 | N-Phenylurea 97% | 64-10-8 | 500g | $97 | 2026-04-30 | Buy |
| TCI Chemical | P0247 | Phenylurea >98.0%(HPLC)(N) | 64-10-8 | 25g | $30 | 2026-04-30 | Buy |
| TCI Chemical | P0247 | Phenylurea >98.0%(HPLC)(N) | 64-10-8 | 100g | $92 | 2026-04-30 | Buy |
| ChemScene | CS-W017760 | 1-Phenylurea ≥98% | 64-10-8 | 100g | $12 | 2026-06-04 | Buy |
Phenylurea Chemical Properties,Uses,Production
Herbicide residues
According to European Union regulations, the maximum residue level (MRL) for a single phenylurea herbicide is 0.1 μg/L in drinking water and 0.01–0.05 mg/kg in food (Commission Directive 2019/1792/EC)[1].
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
Phenylurea is the core structural unit of phenylurea herbicides (PUHs), such as diuron, fenuron, linuron, monuron, isoproturon, monolinuron and chlortoluron. As photosynthesis inhibitors, phenylurea herbicides are widely used in various crops for the pre-emergence and post-emergence control of broadleaf and annual weeds. These herbicides are used on major food crops, including maize (Zea mays) and tomato (Solanum lycopersicum), to control weeds such as lamb’s quarters (Chenopodium album), amaranth (Amaranthus spp.) and barnyard grass (Echinochloa crus-galli)[1].
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.]
References
[1] Xue-Ying Rui . (2025). Construction of covalent organic framework electrospun composite nanofiber membranes for the efficient extraction and detection of phenylurea herbicides. Food Chemistry, 496, Article 146787. https://doi.org/10.1016/j.foodchem.2025.146787
Phenylurea Preparation Products And Raw materials
Raw materials
Preparation Products
1of3
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| BorayChem (Shanghai) New Materials Co., Ltd. | +86-13918125044 +86-13918125044 | moon.zhang@boray-chem.com | China | 4 | 58 |
| Speranza Chemical Co., Ltd. | +86-86-075521030354 +8618688942810 | sophieliu@speranzachem.com | China | 923 | 55 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29812 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49979 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-87569262 +86-15003564040 | 1056@dideu.com | China | 3967 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| ANHUI WITOP BIOTECH CO., LTD | +8615255079626 | eric@witopchemical.com | China | 23541 | 58 |
| AFINE CHEMICALS LIMITED | +86-571-85134551 | info@afinechem.com | China | 15079 | 58 |
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Related Qustion
Ask a questionView Lastest Price from Phenylurea manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-07-27 | Phenylurea
64-10-8
|
$15.00 | 1KG | 99% | 200 tons/ year | Speranza Chemical Co., Ltd. | |
 |
2026-07-13 | N-Phenylurea
64-10-8
|
1KG | 99%Min | 3000 tons | Xi’an Goldenfeather & One Technology Co., Ltd. | ||
 |
2026-03-20 | Phenylurea
64-10-8
|
$10.00 | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd |
-
- Phenylurea
64-10-8
- $15.00
- 99%
- Speranza Chemical Co., Ltd.
-
- N-Phenylurea
64-10-8
- 99%Min
- Xi’an Goldenfeather & One Technology Co., Ltd.
-
- Phenylurea
64-10-8
- $10.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
