DIMETHIPIN
- CAS No.
- 55290-64-7
- Chemical Name:
- DIMETHIPIN
- Synonyms
- n252;HARVADE;UBI-N 252;imethipin;HARVADE(R);harvade25f;tetrathiin;DIMETHIPIN;harvadef-25;OXYDIMETHIN
- CBNumber:
- CB5399996
- Molecular Formula:
- C6H10O4S2
- Molecular Weight:
- 210.27
- MDL Number:
- MFCD00057556
- MOL File:
- 55290-64-7.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Oxydimethin 97% | MT-57604 | 10g | $320 |
| Dimethipin | D461518 | 100mg | $115 |
| Dimethipin | 447098 | 100mg | $403 |
| 2,3-DIHYDRO-5,6-DIMETHYL-1,4-DITHI-INE-1,1,4,4-TETRAOXIDE 98.00% | CHM0165392 | 5G | $1270.5 |
| 2,3-DIHYDRO-5,6-DIMETHYL-1,4-DITHI-INE-1,1,4,4-TETRAOXIDE 98.00% | CHM0165392 | 10G | $1603.14 |
| More product size | |||
| Melting point | 167-169℃ |
|---|---|
| Boiling point | 319.8°C (rough estimate) |
| Density | 1.59 g/cm3 (23℃) |
| refractive index | 1.5220 (estimate) |
| Flash point | -4 °C |
| storage temp. | APPROX -4°C |
| form | solid |
| Henry's Law Constant | 4.3×105 mol/(m3Pa) at 25℃, Duchowicz et al. (2020) |
| FDA UNII | HLV651AHBB |
| Pesticides Freedom of Information Act (FOIA) | Harvade |
| EPA Substance Registry System | Dimethipin (55290-64-7) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302 |
| Precautionary statements | P264-P270-P301+P312-P330-P501 |
| Hazard Codes | F,Xi,Xn |
| Risk Statements | 11-36-66-67-22 |
| Safety Statements | 16-26-33 |
| RIDADR | 2811 |
| RTECS | JO5090000 |
| HazardClass | 6.1(b) |
| PackingGroup | III |
| Hazardous Substances Data | 55290-64-7(Hazardous Substances Data) |
DIMETHIPIN price More Price(5)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| AHH | MT-57604 | Oxydimethin 97% | 10g | $320 | 2026-05-26 | Buy | |
| TRC | D461518 | Dimethipin | 55290-64-7 | 100mg | $115 | 2021-12-16 | Buy |
| Usbiological | 447098 | Dimethipin | 55290-64-7 | 100mg | $403 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | CHM0165392 | 2,3-DIHYDRO-5,6-DIMETHYL-1,4-DITHI-INE-1,1,4,4-TETRAOXIDE 98.00% | 55290-64-7 | 5G | $1270.5 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | CHM0165392 | 2,3-DIHYDRO-5,6-DIMETHYL-1,4-DITHI-INE-1,1,4,4-TETRAOXIDE 98.00% | 55290-64-7 | 10G | $1603.14 | 2021-12-16 | Buy |
DIMETHIPIN Chemical Properties,Uses,Production
Description
Dimethipin is a plant growth regulator and defoliant. It is highly soluble in water and has a low volatility. Depending on local conditions it may be persistent in both soil and water systems. It also has potential to leach to groundwater. Dimethipin is moderately toxic to aquatic species (except algae), birds, earthworms and honeybees. This substance also has a moderate oral mammalian toxicity, is an irritant and skin sensitizer. There is also the suggestion that it is a carcinogen.
Uses
Plant growth regulator.
Uses
Dimethipin is a defoliation herbicide (1,2) which is found in pesticide formulations for protection of crops. Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.
Definition
ChEBI: Dimethipin is a sulfone.
Production Methods
The commercial production of dimethipin begins with the synthesis of the sulphide precursor, 2,3-dihydro-5,6-dimethyl-1,4-dithiin, typically via a base-catalysed cyclisation reaction of 1,2-ethanedithiol with 2,3-dibromobut-2-ene or an equivalent alpha,beta-unsaturated dihalide in an organic solvent under controlled temperature to form the dihydrodithiin ring with geminal methyl groups. The precursor is then oxidised to the tetraoxide using excess peracid, such as m-chloroperbenzoic acid or perbenzoic acid, in a biphasic solvent system like dichloromethane-water, with stirring at low temperature to selectively introduce four oxygen atoms on the sulphur atoms while minimising over-oxidation or decomposition. The reaction mixture is quenched, extracted, and the crude dimethipin purified through filtration, washing, and recrystallisation.
General Description
Colorless crystals with a mild odor. Used as a defoliant.
Air & Water Reactions
Slowly decomposes in water.
Reactivity Profile
DIMETHIPIN slowly decomposes in water to form toxic or flammable products. The decomposition is accelerated by acids. May react with aldehydes, nitrides, and hydrides to generate flammable gases. Reacts with aldehydes, nitrides, and hydrides. Incompatible with acids, peroxides, and acid halides.
Agricultural Uses
Plant growth regulator, Defoliant: Plant and harvest growth regulant. Defoliant used on cotton crops, beans (dry), vines, plants, and trees. Desiccant for canola seeds, flax, maize, rice, oilseed rape, and sunflowers. Not approved for use in the U.S. or EU countries. There are 17 global suppliers.
Agricultural Uses
Dimethipin is used as a defoliant, to aid harvesting in cotton plants and as a desiccant for potato vines. It enhances the maturation process and reduces seed moisture in the harvesting of rice, rape seed, flax and sunflower
Trade name
HARVADE®; HARVADE-25 F®; LEAFLESS® Dimethipin; N 252®; TETRATHIIN®; UBI-N 252®
Mechanism of action
Interferes with protein synthesis in the plant epidermis, functions by stressing the plant’s stomatal system causing it to lose water and defoliate/desiccate.
Safety Profile
Moderately toxic by ingestion. Low toxicity by inhalation and skin contact. When heated to decomposition it emits toxicvapors of SOx.
Pesticide Type
Herbicide; Plant Growth Regulator
DIMETHIPIN Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shaanxi Dideu Medichem Co. Ltd | +86-29-87569266 +86-17392581500 | 1015@dideu.com | China | 3861 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +86-189 4982 3763 | sales@tnjchem.com | China | 34526 | 58 |
| DAYANG CHEM (HANGZHOU) CO.,LTD | +86-88938639 +86-17705817739 | info@dycnchem.com | China | 53799 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Sichuan Kulinan Technology Co., Ltd | 400-1166-196 18981987031 | cdhxsj@163.com | China | 11674 | 57 |
| Chengdu Ai Keda Chemical Technology Co., Ltd. | 4008-755-333 18080918076 | 800078821@qq.com | China | 9706 | 55 |
| Nanjing Sunlida Biological Technology Co., Ltd. | 025-57798810 18652991625 | sales@sunlidabio.com | China | 3223 | 55 |
| Shandong Xiya Chemical Co., Ltd. | 4009903999 13395398332 | sales@xiyashiji.com | China | 20788 | 60 |
| Shenzhen Regent Biochemical Technology Co., Ltd. | 0755-85201366 18938635012 | sales@regentsciences.com | China | 9375 | 58 |
| Shenzhen Polymeri Biochemical Technology Co., Ltd. | +86-400-002-6226 | sales@rrkchem.com | China | 57336 | 58 |
