norflurazon

Description

norflurazon · CAS 27314-13-2 · C12H9ClF3N3O. UNII KES1HB07E4. Melting Point: 184 °C; Solubility: In water, 33.7 mg/L at 25 °C; Vapor Pressure: 0.00000003 [mmHg].

Identification

CAS Registry Number	27314-13-2
PubChem CID	33775
Molecular formula	C12H9ClF3N3O
IUPAC name	4-chloro-5-(methylamino)-2-[3-(trifluoromethyl)phenyl]pyridazin-3-one
UNII (FDA)	KES1HB07E4

Computed Descriptors

Molecular Weight	303.67
XLogP3	2.3
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	2
Exact Mass	303.0386241
Monoisotopic Mass	303.0386241
Topological Polar Surface Area	44.7
Heavy Atom Count	20
Formal Charge	0

Physical & Chemical Properties

Melting Point	184 °C
Solubility	In water, 33.7 mg/L at 25 °C
Vapor Pressure	0.00000003 [mmHg]
Vapor Pressure	2.89X10-8 mm Hg at 25 °C
LogP	log Kow = 2.30
LogP	2.52
Other Experimental Properties	MP: 177 °C. VP: 2X10-9 torr at 20 °C

Physical description & handling notes

• Norflurazon appears as colorless odorless crystals. Non corrosive. Used as an herbicide.
• White to greyish-brown odorless solid; [HSDB] Colorless odorless solid; [CAMEO] Crystalline solid; [MSDSonline]
• White to greyish brown, crystalline powder
• Crystals from alcohol
• Odorless
• Sparingly soluble in hydrocarbons.

Regulatory Status

GHS notification summary	1.4% (1 / 70)

GHS Hazard Classification

GHS notification summary	1.4% (1 / 70)
Reported hazard statements	H400 (98.6%), H410 (40%)

Documented Uses

• Used as selective pre-emergence herbicide for control of annual grasses and broad-leaved weeds in fruits, vegetables, nuts, cotton, soy beans, other crops, and non-agricultural and industrial areas; [HSDB] Used as food additive; [Hawley]
• Norflurazon is a selective preemergent herbicide used to control germinating annual grasses and broadleaf weeds in fruits, vegetables, nuts, cotton, peanuts, soybeans, and various nonagricultural and industrial areas. Formulations include granular, flowable concentrate, and water dispersible granules.
• For more Uses (Complete) data for NORFLURAZON (6 total), please visit the HSDB record page.
• Preparation: C. Ebner, M. Schuler, BE 712832; eidem, US 3644355 (1968, 1972 both to Sandoz).
• Norflurazon is a bleaching, preemergence herbicide.
• All products containing norflurazon are intended primarily for occupational use. At this time no products containing norflurazon are intended for homeowner use. None of the registered occupational uses are likely to involve applications at residential sites.

Synonyms

NORFLURAZON; 27314-13-2; Solicam; Zorial; Norflurazone; Evital; Monometflurazon; Telok; SAN 9789; Monometflurazone; Evitol; Solicam Rapid; Zorial Rapid 80; Norflurazon technical; Predict; 4-Chloro-5-(methylamino)-2-(alpha,alpha,alpha-trifluoro-m-tolyl)-3(2H)-pyridazinone

Frequently Asked Questions

What are the CAS number and molecular formula of norflurazon?

CAS 27314-13-2; molecular formula C12H9ClF3N3O; molecular weight — g/mol.

What other names is norflurazon known by?

NORFLURAZON, 27314-13-2, Solicam, Zorial, Norflurazone, Evital.

Is norflurazon classified as hazardous?

1.4% of GHS notifications report no hazard classification (1 of 70).

What are the key physical properties of norflurazon?

Melting Point: 184 °C; Solubility: In water, 33.7 mg/L at 25 °C; Vapor Pressure: 0.00000003 [mmHg]; Vapor Pressure: 2.89X10-8 mm Hg at 25 °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.