2-(4-chlorophenyl)-3-ethyl-5-oxo-pyridazine-4-carboxylic acid

Description

2-(4-chlorophenyl)-3-ethyl-5-oxo-pyridazine-4-carboxylic acid · CAS 129025-54-3 · C13H11ClN2O3. UNII Q4N3YI429F. Melting Point: Melts/decomposes @ 269 °C; Density: 1.44 g/ml @ 20 °C; Vapor Pressure: less than 1.0X10-7 mm Hg @ 25 °C.

Identification

Computed Descriptors

Physical & Chemical Properties

Physical description & handling notes

• Tan or yellow solid (technical grade); [Merck Index]
• Solid fawn-colored powder
• No obvious odor
• In organic solvents (% w/v): methanol = 1.6%; acetone = <0.05%; dichloromethane = <0.04%; toluene = <0.04%; ethyl acetate = <0.05%; n-hexane = <0.06%
• In distilled water, >55.2% w/v (>552,000 mg/l); >65.5% at pH5 (655,000 mg/l); >65.2% at pH 7 (>652,000 mg/l); >65.8% at pH 9 (>658,000 mg/l)
• In water, 700,000 mg/l, temperature not specified

Documented Uses

• Used as hybridizing agent for wheat (plant growth regulator); [Merck Index] A plant growth regulator used in the production of hybrid wheat seed; Only used by specially-trained seed company personnel; [Reference #1]
• Plant growth regulator for use in the production of hybrid wheat seed. Clofencet is registered for use on wheat as a seed crop and on rotational crops of the cereal group (except rice, wild rice, sweet corn and wheat) and soybeans.
• It is estimated that at maximum market saturation, clofencet will be applied to less than 300,000 acres of the total US wheat acreage (less than or equal to 0.5%). Initial use is projected on 12,000 acres or 0.02% of the total US wheat acreage.

Synonyms

Clofencet; 129025-54-3; Q4N3YI429F; SC 1158; 2-(4-chlorophenyl)-3-ethyl-2,5-dihydro-5-oxo-4-pyridazinecarboxylic acid; DTXSID5043978; CHEBI:133104; 2-(4-chlorophenyl)-3-ethyl-2,5-dihydro-5-oxopyridazine-4-carboxylic acid; 2-4-(chlorophenyl)-3-ethyl-2,5-dihydro-5-oxopyridazine-4-carboxylic acid; RefChem:577728; DTXCID3023978; 2-(4-chlorophenyl)-3-ethyl-5-oxo-2,5-dihydropyridazine-4-carboxylic acid; Clofencet [ISO]; MFCD28047773; 2-(4-CHLOROPHENYL)-3-ETHYL-5-OXO-PYRIDAZINE-4-CARBOXYLIC ACID; 4-Pyridazinecarboxylic acid, 2-(4-chlorophenyl)-3-ethyl-2,5-dihydro-5-oxo-

Frequently Asked Questions

What are the CAS number and molecular formula of 2-(4-chlorophenyl)-3-ethyl-5-oxo-pyridazine-4-carboxylic acid?

CAS 129025-54-3; molecular formula C13H11ClN2O3; molecular weight — g/mol.

What other names is 2-(4-chlorophenyl)-3-ethyl-5-oxo-pyridazine-4-carboxylic acid known by?

Clofencet, 129025-54-3, Q4N3YI429F, SC 1158, 2-(4-chlorophenyl)-3-ethyl-2,5-dihydro-5-oxo-4-pyridazinecarboxylic acid, DTXSID5043978.

What are the key physical properties of 2-(4-chlorophenyl)-3-ethyl-5-oxo-pyridazine-4-carboxylic acid?

Melting Point: Melts/decomposes @ 269 °C; Density: 1.44 g/ml @ 20 °C; Vapor Pressure: less than 1.0X10-7 mm Hg @ 25 °C; Dissociation Constants: pKa = 2.83 @ 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.