Cycluron
Also known as 3-Cyclooctyl-1,1-dimethylurea, Cyclouron, Urea, N'-cyclooctyl-N,N-dimethyl-
Key facts
What buyers check first
- Appearance
- Colorless crystals
- Melting point
- 138 °C
- Solubility
- SOLUBILITY @ 20 °C: 1.1 G/L WATER, 67 G/KG ACETONE, 55 G/KG BENZENE, 500 G/KG METHANOL
- HS code
- 292429
- Category
- Herbicides

What is Cycluron?
Plain description, key identifiers and synonyms
Cycluron is a member of ureas.
Identifiers
Registry numbers, names and line notations, tap to copy
- IUPAC name
- 3-cyclooctyl-1,1-dimethylurea
- CAS number
- 2163-69-1 CAS number cross-checked
- EC number
- 218-493-8
- Molecular formula
- C11H22N2O
- UNII
- V8K90CTK5Q
- InChIKey
- DQZCVNGCTZLGAQ-UHFFFAOYSA-N
- InChI
- InChI=1S/C11H22N2O/c1-13(2)11(14)12-10-8-6-4-3-5-7-9-10/h10H,3-9H2,1-2H3,(H,12,14)
- SMILES (canonical and isomeric)
- CN(C)C(=O)NC1CCCCCCC1
Synonyms
- 3-Cyclooctyl-1,1-dimethylurea
- Cyclouron
- Urea, N'-cyclooctyl-N,N-dimethyl-
- N-Cyclooctyl-N',N'-dimethylurea
- HS 61
- Urea, 3-cyclooctyl-1,1-dimethyl-
- N'-Cyclooctyl-N,N-dimethylurea
- 1-cyclooctyl-3,3-dimethylurea
- 3-Cyclooctyl-1,1-dimethylharnstoff
- OMU
- Alipur (Salt/Mix)
- Alipur-O (Salt/Mix)
- 1,1-Dimethyl-3-cyclooctylurea
- (dimethylamino)-N-cyclooctylcarboxamide
- Urea, N-cyclooctyl-N,N-dimethyl-
- O,N-Cyclooctyl-N',N'- dimethylurea
- Cycluron, PESTANAL(R), analytical standard
- Pesticide3_Cycluron_C11H22N2O_3-Cyclooctyl-1,1-dimethylurea
Physical and chemical properties
Measured values and descriptors computed from the structure
Physical and chemical properties
Measured values, check the supplier specification for your grade
| Appearance | Colorless crystalsexp.Measured value |
|---|---|
| Odour | ODORLESSexp.Measured value |
| Melting point | 138 °Cexp.Measured value |
| Solubility | SOLUBILITY @ 20 °C: 1.1 G/L WATER, 67 G/KG ACETONE, 55 G/KG BENZENE, 500 G/KG METHANOLexp.Measured value |
| Vapour pressure | 1 × 10⁻⁷ MM HG @ 20 °Cexp.Measured value |
Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.
Computed descriptors
Calculated from the structure, useful for screening and formulation
| Molecular weight | 198.31 g/molcalc.Computed value |
|---|---|
| Exact mass | 198.1732 Dacalc.Computed value |
| LogP (octanol/water) | 2.37calc.Computed value |
| Topological polar surface area | 32.34 Ųcalc.Computed value |
| Hydrogen bond donors | 1calc.Computed value |
| Hydrogen bond acceptors | 1calc.Computed value |
| Rotatable bonds | 1calc.Computed value |
| Heavy atoms | 14calc.Computed value |
| Rings | 1calc.Computed value |
| Aromatic rings | 0calc.Computed value |
| Fraction sp3 carbons | 0.91calc.Computed value |
| Formal charge | 0calc.Computed value |
| Stereocentres | 0calc.Computed value |
| Lipinski rule of five | Passes (0 violations)calc.Computed value |
Calculated for screening. Confirm critical figures with the supplier.
Murcko scaffold
The ring system that remains when every side chain is removed
Safety and hazards
GHS classification summary, not a safety data sheet
Hazard statements
- H302Harmful if swallowed.
Precautionary statements (5)
- P264Wash skin thoroughly after handling.
- P270Do not eat, drink or smoke when using this product.
- P301 + P317If swallowed: Get medical help.
- P330Rinse mouth.
- P501Dispose of contents and container in accordance with local regulations.
GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.
Full safety data and first aidCycluron suppliers
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Cycluron price
Indicative price range per kg from live supplier offers
Suppliers quote this chemical on request. Send one free request and compare quotes side by side.
Uses and applications
What the substance is used for, by industry and function
Pre-emergence herbicide.
In combination (3:2) with chlorbufam, pre-emergence herbicidal control of annual weeds in onions, peas, beans, and spinach. Also used in forestry, on seed beds before planting out and on beds for transplanting vegetables (restricted use).
Use ... for pre-emergence weed control in ... spinach.
Cycluron is used in 3:2 mixture with chlorbufam as a pre-emergence herbicide @ 3-6 l 'alipur'/hectare for control of annual weeds in sugar beet and several vegetable crops.
Use classes: Pharmaceuticals.
How it is made
By reaction of cyclo-octylamine with dimethylcarbamoyl chloride
Dry hydrogen chloride is led into a solution of 127 parts of cyclooctylamine in 410 parts of dry dioxane at room temperature until the whole of the amine has been converted into the hydrochloride. Then dry phosgene is led into the solution kept at 90 °C until the color of the solution has changed to yellow-brown, which requires about 2 to 3 hr.
Read more
After distilling off about 100 parts of dioxane (whereby the excess of phosgene and hydrogen chloride are removed), dimethylamine is led into the solution of the cyclooctyl isocyanate formed at room temperature until it is saturated and the reaction mixture kept at 50 °C for 1 hr after the end of the introduction, it is then allowed to cool and the precipitated 1-cyclooctyl-3,3-dimethylurea is filtered off by suction, suspended in water and after repeated filtration by suction dried in a vacuum drying cabinet at 60 °C. If necessary the compound can be recrystallized from cyclohexane. 168 parts of 1-cyclooctyl-3,3-dimethylurea ... are obtained.
Regulatory status
Inventories, regulations and trade controls that list this substance
No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.
HS code and trade data
Customs classification and reported world trade statistics
Global trade
World import and export statistics for the HS code Cycluron is traded under.
Cyclic amides (including cyclic carbamates) and their derivatives, salts thereof, other
- China32.3%
- Switzerland * partner reported13.6%
- Norway * partner reported12.8%
- United States15.9%
- Ireland15.8%
- Germany11.9%
* Partner reported figures, a lower bound.
The HS code shown for Cycluron is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.
Frequently asked questions
Quick answers about Cycluron, based on the data on this page
What is Cycluron?
What is the CAS number of Cycluron?
What is the molecular formula and weight of Cycluron?
What is Cycluron used for?
Is Cycluron hazardous?
What is the HS code of Cycluron?
Where can I buy Cycluron?
What is the price of Cycluron?
Guides for buyers
Practical guides that help when you source, ship or handle Cycluron
- Guide, SafetyHow to read a safety data sheet in 10 minutesA section by section method to pull the essentials out of any 16 section SDS: identity, hazards, composition, storage, PPE, properties, transport and emergency measures.Read
- Guide, SafetyGHS pictograms, signal words and hazard statements explainedA practical guide to the nine GHS pictograms, the signal words Danger and Warning, H and P statements, and how to read a chemical label in seconds.Read
- Article, SourcingHow to write an RFQ that gets fast and accurate quotesWhat suppliers need to quote quickly and comparably: exact product identity, quantity and packing, delivery terms, documents, samples and payment, with a ready to use template.Read
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