Propyzamide

Description

Propyzamide · CAS 23950-58-5 · C12H11Cl2NO. UNII 2EZ95375S0. Melting Point: 155-156 °C; Vapor Pressure: 0.000085 [mmHg]; Vapor Pressure: 8.5X10-5 MM HG @ 25 °C.

Identification

CAS Registry Number	23950-58-5
PubChem CID	32154
Molecular formula	C12H11Cl2NO
IUPAC name	3,5-dichloro-N-(2-methylbut-3-yn-2-yl)benzamide
UNII (FDA)	2EZ95375S0

Computed Descriptors

Molecular Weight	256.12
XLogP3	3.2
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	3
Exact Mass	255.0217694
Monoisotopic Mass	255.0217694
Topological Polar Surface Area	29.1
Heavy Atom Count	16
Formal Charge	0

Physical & Chemical Properties

Melting Point	155-156 °C
Vapor Pressure	0.000085 [mmHg]
Vapor Pressure	8.5X10-5 MM HG @ 25 °C
LogP	Log Kow = 3.43
LogP	3.43
Collision Cross Section	175.61 Ų [M+Na]+
Collision Cross Section	157.7 Ų [M+H]+

Physical description & handling notes

• 3,5-dichloro-n-(1,1-dimethyl-2-propynyl)benzamide is a white solid. Used as a selective herbicide.
• Off-white or white odorless solid; [HSDB] Colorless or white crystalline solid; [MSDSonline]
• OFF-WHITE SOLID
• WHITE CRYSTALS
• NEEDLES
• White powder

GHS Hazard Classification

Reported hazard statements	H351, H400, H410, H373, H401, H411

Documented Uses

• Used as selective pre-emergence herbicide; [Merck Index]
• SELECTIVE HERBICIDE THAT WILL CONTROL MANY BROADLEAF & GRASS WEEDS PREEMERGENCE IN LETTUCE /AND OTHER CROPS/
• Selective systemic herbicide, ..... used for the selective control of many annual and perennial grasses, and some broad- leaved weeds .....
• Pronamide has been prepared by the Schotten-Bauman reaction of 3,5-dichlorobenzylchloride with 3-amino-3-methylbutyne.
• Methylbutynol + ammonia + 3,5-dichlorobenzoyl chloride (ammoniation/amide formation)
• HERBICIDE FOR VEGETABLES, 46%; FOR OTHER FIELD CROPS, 46%; FOR PASTURE & RANGELAND, 8% (1982)

Synonyms

Propyzamide; 23950-58-5; PRONAMIDE; 3,5-Dichloro-N-(1,1-dimethylpropynyl)benzamide; 3,5-dichloro-N-(2-methylbut-3-yn-2-yl)benzamide; KERB; Pronamid; Clanex; 3,5-Dichloro-N-(1,1-dimethyl-2-propynyl)benzamide; KERB 50W; 3,5-Dichloro-N-(1,1-dimethylprop-2-ynyl)benzamide; RH 315; DTXSID2020420; N-(1,1-Dimethylpropynyl)-3,5-dichlorobenzamide; RH-315; Benzamide, 3,5-dichloro-N-(1,1-dimethyl-2-propynyl)-

Frequently Asked Questions

What are the CAS number and molecular formula of Propyzamide?

CAS 23950-58-5; molecular formula C12H11Cl2NO; molecular weight — g/mol.

What other names is Propyzamide known by?

Propyzamide, 23950-58-5, PRONAMIDE, 3,5-Dichloro-N-(1,1-dimethylpropynyl)benzamide, 3,5-dichloro-N-(2-methylbut-3-yn-2-yl)benzamide, KERB.

Is Propyzamide classified as hazardous?

Hazard statements reported: H351, H400, H410, H373, H401.

What are the key physical properties of Propyzamide?

Melting Point: 155-156 °C; Vapor Pressure: 0.000085 [mmHg]; Vapor Pressure: 8.5X10-5 MM HG @ 25 °C; LogP: Log Kow = 3.43.

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.