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Description

Fenoxaprop-ethyl · CAS 66441-23-4 · C18H16ClNO5. UNII 7U20WEM458. Boiling Point: 200 °C @ 100 pa; Melting Point: 84-85 °C; Vapor Pressure: 0.00000001 [mmHg].

Identification

CAS Registry Number	66441-23-4
PubChem CID	47938
Molecular formula	C18H16ClNO5
IUPAC name	ethyl 2-[4-[(6-chloro-1,3-benzoxazol-2-yl)oxy]phenoxy]propanoate
UNII (FDA)	7U20WEM458

Computed Descriptors

Molecular Weight	361.8
XLogP3	4.1
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	7
Exact Mass	361.0717003
Monoisotopic Mass	361.0717003
Topological Polar Surface Area	70.8
Heavy Atom Count	25
Formal Charge	0

Physical & Chemical Properties

Boiling Point	200 °C @ 100 pa
Melting Point	84-85 °C
Vapor Pressure	0.00000001 [mmHg]
Vapor Pressure	0.19 X 10-5 Pa @ 20 °C

Physical description & handling notes

• Coarse light beige to brown powder. Selective herbicide.
• Colorless solid; [HSDB] Light beige to brown solid; [CAMEO]
• Colorless solid
• Solubility @ 20 °C: >0.5% in hexane; >1% in cyclohexane, ethanol, 1-octanol; >20%in ethyl acetate; >30% in toluene; >50% in acetone; solubility in water @ 25 °C: 0.9 mg/l
• 189.3 Ų [M+H]+ [CCS Type: DT; Buffer gas: N2; Ionization: ESI+; Dataset: TOXCAST; Source Identifier: DTXSID2032392]
• 189.1 Ų [M+Na]+ [CCS Type: DT; Buffer gas: N2; Ionization: ESI+; Dataset: TOXCAST; Source Identifier: DTXSID2032392]

GHS Hazard Classification

Reported hazard statements	H317, H400, H410, H302 (100%), H315 (100%), H319 (100%)

Documented Uses

• Used as selective post-emergence herbicide for control of grassy weeds in beets, cotton, soy beans, vegetables, turf, and other crops; [HSDB]
• Herbicide to control grassy weeds in broadleaved crops and established turfgrass.
• /Controls/ emerged annual and perennial grass weeds in such crops as beans, beets, cotton, groundnuts, potatoes, soyabeans and vegetables using 180-480 g ai/hectare.
• Chronic angina and Coronary Artery Disease
• Selective postemergent herbicide
• Fenoxaprop-ethyl is a proprietary combination of nitrate and L-arginine that provides the beneficial cardiovascular effects of nitrates. Combining L-arginine with organic nitrates prevents the endothelial cell's depletion of L-arginine and the associated problem of nitrate tolerance. By eliminating nitrate tolerance, Fenoxaprop-ethyl allows patients to receive the continuous, 24-hour benefit of a potent nitrate product, thus sustaining the desired vasodilation effect.

Synonyms

FENOXAPROP-ETHYL; 66441-23-4; Fenoxaprop ethyl; Acclaim; Furore; Depon; Whip; Fenoxaprop ethyl ester; Excel; PUMA; Tiller Herbicide; Option; HOE 33171; DTXSID2032392; ethyl 2-[4-[(6-chloro-1,3-benzoxazol-2-yl)oxy]phenoxy]propanoate; Propanoic acid, 2-[4-[(6-chloro-2-benzoxazolyl)oxy]phenoxy]-, ethyl ester

Frequently Asked Questions

What are the CAS number and molecular formula of Fenoxaprop-ethyl?

CAS 66441-23-4; molecular formula C18H16ClNO5; molecular weight — g/mol.

What other names is Fenoxaprop-ethyl known by?

FENOXAPROP-ETHYL, 66441-23-4, Fenoxaprop ethyl, Acclaim, Furore, Depon.

Is Fenoxaprop-ethyl classified as hazardous?

Hazard statements reported: H317, H400, H410, H302, H315.

What are the key physical properties of Fenoxaprop-ethyl?

Boiling Point: 200 °C @ 100 pa; Melting Point: 84-85 °C; Vapor Pressure: 0.00000001 [mmHg]; Vapor Pressure: 0.19 X 10-5 Pa @ 20 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.