Propanil

Description

3,4-DICHLOROPROPIONANILIDE · CAS 709-98-8 · C9H9Cl2NO. UNII F57I4G0520. Boiling Point: 351 °C; Melting Point: 92 °C; Melting Point: 92-93 °C.

Identification

CAS Registry Number	709-98-8
PubChem CID	4933
Molecular formula	C9H9Cl2NO
IUPAC name	N-(3,4-dichlorophenyl)propanamide
UNII (FDA)	F57I4G0520

Computed Descriptors

Molecular Weight	218.08
XLogP3	3.1
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	2
Exact Mass	217.0061193
Monoisotopic Mass	217.0061193
Topological Polar Surface Area	29.1
Heavy Atom Count	13
Formal Charge	0

Physical & Chemical Properties

Boiling Point	351 °C
Melting Point	92 °C
Melting Point	92-93 °C
Flash Point	>100 °C
Solubility	In water, 152 mg/L at 25 °C
Density	1.25 g/cu cm at 25 °C
Density	Density (at 25 °C): 1.4 g/cm³
Vapor Pressure	0.00000091 [mmHg]
LogP	log Kow = 3.07
LogP	3.12

Physical description & handling notes

• Propanil appears as colorless to brown crystals. Non corrosive. Used as an herbicide.
• White solid; [Merck Index] Colorless, white, or light brown odorless solid; [HSDB] Medium to dark grey solid; Formulated as emulsifiable, soluble, and flowable concentrate liquids and as water dispersible granules; [Reference #2]
• COLOURLESS CRYSTALS.
• White crystalline solid /Purity not provided/
• Colorless crystals /Purity not provided/
• Light brown solid (pure)

GHS Hazard Classification

Reported hazard statements	H302, H400, H332 (47.9%), H410 (48.4%), H319, H371

Documented Uses

• A post-emergence herbicide used to control weeds in rice, potatoes, and wheat; [EXTOXNET] Used as post-emergence herbicide for rice; Also registered, but not marketed, for use on commercial sod farms; [Reference #2]
• Uses on small grains voluntarily cancelled; [Reference #2]
• Herbicide; postemergence with no residual effect against numerous grasses and broadleaved weeds in rice.
• Propanil can be prepared by reaction of 3,4-dichloroaniline with propionic acid in the presence of thionyl chloride.
• /The/ contaminants are 3,4,3',4'-tetrachloroazobenzene and /3,4,3',4'-tetrachloroazobenzene's/ oxy derivative... .
• Presence of TCAB (3,3',4,4'-tetrachloroazobenzene) was determined by HPLC in 3,4-dichloroaniline, & in the herbicides (propanil, diuron, linuron & neburon) made from 3,4-dichloroaniline.

Synonyms

propanil; 709-98-8; N-(3,4-Dichlorophenyl)propanamide; Propanide; Propanex; Surcopur; Dipram; Rogue; Grascide; Propanid; Stampede; Supernox; Propanamide, N-(3,4-dichlorophenyl)-; Chem Rice; Synpran N; STAM

Frequently Asked Questions

What are the CAS number and molecular formula of 3,4-DICHLOROPROPIONANILIDE?

CAS 709-98-8; molecular formula C9H9Cl2NO; molecular weight — g/mol.

What other names is 3,4-DICHLOROPROPIONANILIDE known by?

propanil, 709-98-8, N-(3,4-Dichlorophenyl)propanamide, Propanide, Propanex, Surcopur.

Is 3,4-DICHLOROPROPIONANILIDE classified as hazardous?

Hazard statements reported: H302, H400, H332, H410, H319.

What are the key physical properties of 3,4-DICHLOROPROPIONANILIDE?

Boiling Point: 351 °C; Melting Point: 92 °C; Melting Point: 92-93 °C; Flash Point: >100 °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.