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- Diflufenzopyr
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- $195.00
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2026-05-11
- CAS:109293-97-2
- Purity: 99.71%
- Supply Ability: 10g
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| | DIFLUFENZOPYR Basic information |
| Product Name: | DIFLUFENZOPYR | | Synonyms: | BAS 654 00 H;DIFLUFENZOPYR;2-(1-((((3,5-difluorophenyl)amino)carbonyl)hydrazono)ethyl)3-pyridinecarboxylic acid;2-(1-(4-(3,5-difluorophenyl)semicarbazone)ethyl)nicotinic acid;Distinct;diflufenopyr (bsi proposed);2-[N-[(3,5-DIFLUOROPHENYL)CARBAMOYLAMINO]-C-METHYL-CARBONIMIDOYL]PYRIDINE-3-CARBOXYLIC ACID;2-{1-[4-(3,5-Difluorophenyl)semicarbazido]ethyl}nicotinic acid | | CAS: | 109293-97-2 | | MF: | C15H12F2N4O3 | | MW: | 334.28 | | EINECS: | | | Product Categories: | | | Mol File: | 109293-97-2.mol |  |
| | DIFLUFENZOPYR Chemical Properties |
| Melting point | 155° (Bowe); also reported as 186° (Anderson). | | density | 0.24 g/cm3(Temp: 25 °C) | | Fp | 150 °C | | storage temp. | 0-6°C | | pka | 2.91±0.36(Predicted) | | Merck | 13,3169 | | CAS DataBase Reference | 109293-97-2 | | EPA Substance Registry System | Diflufenzopyr (109293-97-2) |
| RTECS | US5648931 | | Hazardous Substances Data | 109293-97-2(Hazardous Substances Data) | | Toxicity | LD50 in rats (mg/kg): >5000 orally; >5000 dermally; LC50 in rats (mg/l): 2.93 by inhalation; LC50 in rainbow trout, bluegill sunfish (mg/l): 106, 135 (Bowe). |
| | DIFLUFENZOPYR Usage And Synthesis |
| Chemical Properties | Flumioxazin pure is off-white odorless solid, melting point 135.5℃. Vapor pressure 1×10-7mPa(20/25℃). Partition coefficient Kow lgP=0.037(pH 7).Henry's constant <7×10-5Pa -m3/ mol(20℃). Relative density 0.24 (25°C). Solubility in water (25°C, mg/L): 63 (pH 5), 5850 (pH 7), 100546 (pH 9). Hydrolyzed DT50: 13d (pH 5), 24d (pH 7), 26d (pH 9). Aqueous photolysis of DT50: 7d (pH 5), 17d (pH 7), 13d (pH 9). pKa3.18. | | Uses | Diflufenzopyr (SAN 835H) is an auxin transport inhibitor. Diflufenzopyr can enhance the activity of auxin herbicides, such as quinclorac (HY-B0871) and picloram (HY-B2034), and of the synthetic auxin, 1-naphthaleneacetic acid (HY-18570)[1][2]. | | Mechanism of action | Systemic, works by inhibiting auxin transport | | Synthesis | Diflufenzopyr was prepared as follows: 5 ml of methanol solution containing 4-phenylaminourea (0.37 g, 2.4 mmol) was added to an aqueous solution of 2-acetylnicotinic acid (0.40 g, 2.4 mmol) in 7 ml of methanol, the mixture was stirred at room temperature overnight, thereafter the solid precipitate was collected by filtration, washed with ethanol, and dried to afford 4-phenylsemicarbazone 2-acetylnicotinic acid with a melting point of 174 (decomposition). | | References | [1] Sikkema P H, et al. Biologically effective dose and selectivity of SAN 1269H (BAS 662H) for weed control in corn (Zea mays).[J]. Weed Technology, 1999, 13(2):283-289.
[2] Grossmann K, et al. On the mechanism of selectivity of the corn herbicide BAS 662H: a combination of the novel auxin transport inhibitor diflufenzopyr and the auxin herbicide dicamba. Pest Manag Sci. 2002 Oct;58(10):1002-14. DOI:10.1002/ps.549 | | Pesticide Type | Herbicide |
| | DIFLUFENZOPYR Preparation Products And Raw materials |
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