Overview
Phenyl (4,6-dimethoxy-2-pyrimidinyl)carbamate (CAS 89392-03-0 ) is a pyrimidine-based carbamate compound used primarily as a chemical intermediate in agrochemical and pharmaceutical synthesis.
Its reactive carbamate moiety makes it a key building block for the production of sulfonylurea and related herbicide active ingredients. In agrochemical manufacturing, it serves as a core intermediate.
It is used in the synthesis of sulfonylurea herbicides, which target acetolactate synthase in broadleaf weeds and grasses. This is a widely commercialized mode of action across cereal and rice crop protection products.
Pharmaceutical producers use it as a synthetic precursor where controlled introduction of the dimethoxypyrimidine scaffold is required in drug candidate development. It is essential for specific drug sequences.
Contract manufacturers and toll synthesizers source it for multi-step API intermediate sequences requiring a stable, isolable carbamate transfer agent. Its reactivity profile also suits research-scale synthesis programs.
It is frequently used for evaluating novel heterocyclic compounds for biological screening. Phenyl (4,6-dimethoxy-2-pyrimidinyl)carbamate is typically supplied as a solid powder or crystalline material.
It is available in technical grade for agrochemical intermediate use, with higher-purity specifications offered for pharmaceutical and research applications. Packaging ranges from laboratory quantities to bulk volumes.
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Physical Properties
| Melting Point | 119 °C |
| Boiling Point | 250°C[at 101 325 Pa] |
| Density | 1.317±0.06 g/cm3(Predicted) |
| Appearance | Crystalline Powder |
| Color | White to Orange to Green |
| Form | powder to crystal |
| Water Solubility | 61mg/L at 20℃ |
| Vapor Pressure | 0.02Pa at 20℃ |
| Log P | 2.1 at 25℃ |
Safety & Handling
Warning GHS07 GHS09 Hazard Statements H302 Harmful if swallowed H312 Harmful in contact with skin H315 Causes skin irritation H317 May cause an allergic skin reaction H319 Causes serious eye irritation H332 Harmful if inhaled H335 May cause respiratory irritation H411 Toxic to aquatic life with long lasting effects Precautionary Statements P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P391 Collect spillage. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P333+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 2933599590 |
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
Other Names
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Chemical Properties
- CAS Number
- 89392-03-0
- EC Number
- 406-600-2
- Mol. Weight
- 275.26
- HS Code
- 2933599590
- Category
- Heterocyclic Compounds