Molekula
3-(3,4-Dichlorophenyl)-1,1-dimethylurea
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
3-(3,4-Dichlorophenyl)-1,1-dimethylurea, commonly known as diuron, is a phenylurea herbicide widely used to control weeds in agricultural, industrial, and non-agricultural settings, including crops, turf, and aquatic environments. It inhibits photosynthesis in susceptible plants, leading to their death. Beyond weed control, it serves as a broad-spectrum algicide in dry-film preservatives for paints, coatings and plasters, and as a pre-emergence herbicide and flowering suppressant in sugar cane. This chemical has a CAS number of 330-54-1, with the molecular formula C9H10Cl2N2O and a molecular weight of 233.09. It is stored at ambient conditions and carries a **Danger** signal word under GHS classification. Molekula supplies 3-(3,4-Dichlorophenyl)-1,1-dimethylurea from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to off-white or light yellow powder |
| Loss on Drying | ≤ 1.0% |
| Acetone Insoluble | ≤ 0.5% |
| Active assay | ≥ 97.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White, crystalline solid |
| Odour | Odorless |
| Melting Point | 158-159 °C |
| Boiling Point | 180 °C (Decomposes) |
| Water Solubility | 42 mg/L at 25 °C |
| Solubility (other solvents) | In acetone 53, butyl stearate 1.4, benzene 1.2 (all in g/kg at 27 °C). Sparingly soluble in hydrocarbons |
| Vapour Pressure | 8.25 × 10⁻⁹ mmHg (1.1 × 10⁻³ mPa) at 25 °C |
| log P (octanol/water) | 2.68 |
Source: PubChem CID 3120 (HSDB, The National Institute for Occupational Safety and Health (NIOSH))
Identification
| Property | Value |
|---|---|
| SKU | 89993638 |
| CAS Number | 330-54-1 |
| IUPAC Name | 3-(3,4-dichlorophenyl)-1,1-dimethylurea |
| EC Number | 206-354-4 |
| Molecular Formula | C9H10Cl2N2O |
| Molecular Weight | 233.09 |
| Exact Mass | 232.017 |
| SMILES | CN(C)C(=O)NC1=CC(=C(C=C1)Cl)Cl |
| InChIKey | XMTQQYYKAHVGBJ-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H10Cl2N2O/c1-13(2)9(14)12-6-3-4-7(10)8(11)5-6/h3-5H,1-2H3,(H,12,14) |
| PubChem CID | 3120 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29242145 |
| Tariff Code | 2924210090 |
Safety & GHS
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
-
Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H350 May cause cancer
- H373 May cause damage to organs through prolonged or repeated exposure
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P201 Obtain special instructions before use
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P304+341 IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing
- P308+313 IF exposed or concerned: Get medical advice/attention
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Dailon
- DCMU
- Dichlorfenidim
- diuron
- Duran
- Dynex
- Karmex
- Karmex DW
- Marmer
- Vonduron
Frequently asked questions
What is 3-(3,4-Dichlorophenyl)-1,1-dimethylurea (CAS 330-54-1) commonly used for?
It is primarily used as a herbicide, particularly as the active ingredient in the formulation of **diuron**, for controlling weeds in agricultural, industrial, and non-agricultural settings.
What is the molecular formula and molecular weight of this compound?
The molecular formula is **C9H10Cl2N2O**, and the molecular weight is **233.09 g/mol**.
What safety classification does this product have, and how should it be handled?
This product has a **Signal Word of 'Danger'** due to its hazardous properties. Always handle with appropriate PPE, avoid inhalation/exposure, and follow local safety regulations.
What grades or purities are available for this compound?
Molekula supplies this compound in **technical grade** and **analytical standard grade** (typically ≥98% purity).
Can Molekula supply this product in bulk quantities?
Yes, we can provide this compound in bulk, with minimum order quantities (MOQs) varying based on grade and application. Contact us for specific bulk pricing and availability.
What documentation is provided with an order of this product?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and a **product specification sheet** detailing purity, impurities, and storage instructions.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.