QUINOXYFEN

ChemicalBook > CAS DataBase List > QUINOXYFEN

Product Name: QUINOXYFEN
CAS No.: 124495-18-7
Chemical Name: QUINOXYFEN
Synonyms: Quinoxyphen;Quintec;QUINOXYFEN;FORTRESS(R);Legend Elios;Quinoxyfen 0.1;Quinoxyfen >Legend (fungicide);Quinoxyfen Standard;Gestrinone Impurity 11
CBNumber: CB7757516
Molecular Formula: C15H8Cl2FNO
Formula Weight: 308.13
MOL File: 124495-18-7.mol

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QUINOXYFEN Property

Melting point:: 105-106°
Boiling point:: 423℃
Density: 1.430
vapor pressure: 1.2 x 10^-5 Pa (20 °C)
Flash point:: >100 °C
storage temp.: 0-6°C
solubility: Chloroform (Slightly), Methanol (Slightly)
Water Solubility: 0.12 mg l^-1 (20 °C)
pka: 2.87±0.50(Predicted)
color: White to Light yellow
Merck: 14,8079
LogP: 5.1 at 20℃
Dissociation constant: 3.56
EPA Substance Registry System: Quinoxyfen (124495-18-7)

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Safety

Hazard Codes: Xi,N
Risk Statements: 43-50/53
Safety Statements: 24-37-46-60-61
RIDADR: UN3077 9/PG 3
WGK Germany: 3
RTECS: VB4287500
HazardClass: 9
PackingGroup: III
HS Code: 38220090
Hazardous Substances Data: 124495-18-7(Hazardous Substances Data)
Toxicity: LD50 orally in rats: >5000 mg/kg; dermally in rabbits: >2000 mg/kg; by inhalation in rats: >3.38 mg/l (Longhurst)

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H317May cause an allergic skin reaction

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P272Contaminated work clothing should not be allowed out of the workplace.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 46439
Product name: Quinoxyfen
Purity: PESTANAL
Packaging: 100mg
Price: $202
Updated: 2024/03/01

TCI Chemical

Product number: Q0093
Product name: Quinoxyfen
Purity: >98.0%(GC)
Packaging: 200mg
Price: $151
Updated: 2024/03/01

TRC

Product number: Q765500
Product name: Quinoxyfen
Packaging: 500mg
Price: $95
Updated: 2021/12/16

Chem-Impex

Product number: 38419
Product name: Quinoxyfen,98%(GC)
Purity: 98%(GC)
Packaging: 200MG
Price: $141.12
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: AGR0000260
Product name: QUINOXYFEN
Purity: 95.00%
Packaging: 200MG
Price: $684
Updated: 2021/12/16

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QUINOXYFEN Chemical Properties,Usage,Production

Chemical Properties

Off-White Solid

Uses

Quinoxyfen is under development for the control of powdery mildew in cereals and grapes.

Uses

Agricultural fungicide.

Definition

ChEBI: A member of the class of quinolines carrying two chloro substituents at positions 5 and 7 together with a 4-fluorophenoxy substituent at position 4. A fungicide used mainly to control powdery mildew in cereals.

Environmental Fate

The stability of quinoxyfen in the soil has been shown to vary depending on soil type and source. DT₅₀ values obtained in the field varied from 5 to 454 days for a range of soil types. The strong adsorptive properties of quinoxyfen reduce its soil dissipation rate, but result in no leaching potential of this fungicide into waterways or groundwater. The primary metabolite formed in the soil is 3-hydroxyquinoxyfen . A secondary soil metabolite is 5,7-dichloro-4-hydroxyquinoline (DCHQ). DCHQ was also found not to leach, even in sandy soils. Under acidic aqueous conditions, DCHQ was the primary metabolite found, and this was produced in greater quantities at acidic pHs. An additional metabolite was isolated from both water and the sediment in an aqueous clay loam system. Although not positively identified, it is suspected to be 6-hydroxyquinoxyfen.
A similar hydrolysis profile is observed in water as in soil (3). The primary product produced under acidic conditions in the absence of light was DCHQ. However, in the presence of light, photolysis was greatly increased and dose dependent on the amount of sunlight received. The primary photolysis product was 2-chloro-10- fluoro[1]benzopyrano[2,3,4-de]quinoline (CFBPQ).

Metabolic pathway

Quinoxyfen is a novel fungicide for the control of powdery mildew in cereals. Its mode of action is unknown but it appears to differ from those of current fungicides and thus may be novel (Longhurst et al., 1996). Quinoxyfen is tightly bound to soil components and is somewhat persistent in this medium but in aqueous solution it is subject to rapid photodecomposition. Photodegradation is therefore likely to be an important process in its immediate removal from the environment. Plant metabolites have not been reported but unchanged quinoxyfen has been confirmed as the major residue.
The compound is rapidly metabolised and eliminated following ingestion by rats and goats. Metabolism involves mainly hydroxylation of the intact quinoxyfen, cleavage at the ether bond and conjugation of the resulting metabolites. The information presented below was obtained from two sources (DowElanco, 1996; Reeves et al., 1996).

Degradation

Quinoxyfen is stable in the dark at 25 °C and it is stable in aqueous solution at pH 7 and 9. Its DT₅₀ at pH 4 was 16 days (40°C) but it was degraded more rapidly than this in light. Aqueous photolysis of dilute solutions occurs with DT₅₀ values of 1.7 and 22.8 hours in June and December (Europe), respectively. The main degradation product was 2-chloro-10-fluoro[1]benzopyrano[2,3,4-de]quinoline (2, up to 30%); a second product (up to 11%) was probably 5,7-dichloro-4-hydroxyquinoline (3) (see Scheme 1).

Toxicity evaluation

The specificity of quinoxyfen to fungi may account for its relatively safe toxicological profile. Quinoxyfen has no demonstrable effect in any genotoxicity tests, and the rat oral LD₅₀ is >5000 mg/kg. Quinoxyfen was not shown to cause skin irritation, but studies with rabbit indicated it might cause mild eye irritation and it has the potential to cause skin sensitization, as shown in guinea pigs with repeated exposure. A NOEL of 20 mg/kg bw/day was established through 1-year and 2-year rat chronic feeding studies. The aquatic precautions with quinoxyfen may be due to its high logP. The rainbow trout LD₅₀ is 0.27 mg/L; however, this is well above its water solubility of 0.116 mg/L. In addition, the Daphnia 48h EC50 is 0.08 mg/kg and the Selenastrum capricornutum 72 h EbC50 is 0.03 mg/kg. With the exception of some aquatic species, quinoxyfen has a very desirable toxicological profile toward nontarget species in the environment. Its toxicity toward birds, honeybees, and earthworms is low.

QUINOXYFEN Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from QUINOXYFEN manufacturers

Hebei Duling International Trade Co. LTD

Product: QUINOXYFEN 124495-18-7
Price: US $50.00/kg
Min. Order: 1kg
Purity: 98%
Supply Ability: 20 tons
Release date: 2023-03-23

124495-18-7, QUINOXYFENRelated Search:

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QUINOXYFEN

FORTRESS(R)

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(5,7-dichloro-4-quinolyl) (4-fluorophenyl) ether

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124495-18-7

C15H8Cl2FNO

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