N,N-二甲基-2,2-二苯基乙酰胺

Description

N,N-dimethyl-2,2-diphenylacetamide · CAS 957-51-7 · C16H17NO. UNII 6Z3R6EGA2B. Melting Point: 134.5 TO 135.5 °C; Melting Point: 135 °C; Density: 1.17 @ 23.3 °C.

Identification

CAS Registry Number	957-51-7
PubChem CID	13728
Molecular formula	C16H17NO
IUPAC name	N,N-dimethyl-2,2-diphenylacetamide
UNII (FDA)	6Z3R6EGA2B

Computed Descriptors

Molecular Weight	239.31
XLogP3	3
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	3
Exact Mass	239.131014166
Monoisotopic Mass	239.131014166
Topological Polar Surface Area	20.3
Heavy Atom Count	18
Formal Charge	0

Physical & Chemical Properties

Melting Point	134.5 TO 135.5 °C
Melting Point	135 °C
Density	1.17 @ 23.3 °C
Density	1.2 g/cm³
Vapor Pressure	0.00000003 [mmHg]
Vapor Pressure	3.00X10-8 mm Hg @ 25 °C
LogP	Log P: 2.17
LogP	2.17

Physical description & handling notes

• Diphenamid appears as colorless to off-white crystals. Used as an herbicide.
• White solid; [Hawley] Colorless or white solid; Technical product: Off-white solid; [HSDB]
• WHITE SOLID IN VARIOUS FORMS.
• WHITE
• CRYSTALS FROM ETHYL ACETATE
• WHITE PRISMS

GHS Hazard Classification

Reported hazard statements	H302, H412

Documented Uses

• Used as pre-emergence herbicide for control of annual grasses and broad-leaved weeds in cotton, potatoes, vegetables, soy beans, tobacco, fruits, forestry nurseries, and ornamentals; Also used as plant growth regulator; Discontinued in 1988 by NOR-AM Chemical Co.; [HSDB]
• HERBICIDE FOR CONTROL OF ANNUAL BROADLEAF WEEDS & ANNUAL GRASSES.
• SELECTIVE PREEMERGENCE HERBICIDE THAT CONTROLS GRASSES & BROADLEAF WEEDS SUCH AS CARPETWEED, CHICKWEED, KNOTWEED, LAMBSQUARTERS, PIGWEED, PURSLANE, & SMARTWEED.
• Control of annual grasses and some broad-leaved weeds in cotton, potatoes, sweetpotatoes, tomatoes, vegetables, capsicums, okra, soya beans, groundnuts, tobacco, pome fruit, stone fruit, citrus fruit, bush fruit, strawberries, forestry nurseries, and ornamental plants, shrubs, and trees.
• REACTION OF DIPHENYL ACETYL CHLORIDE WITH DIMETHYLAMINE IN THE PRESENCE OF A BASE
• ... BY REACTION OF DIPHENYLMETHANE & DIMETHYLCARBAMOYL CHLORIDE IN PRESENCE OF SODIUM HYDRIDE ... .

Synonyms

DIPHENAMID; 957-51-7; N,N-Dimethyl-2,2-diphenylacetamide; Dimid; Dymid; Enide; Fenam; Diherbid; Rideon; Zarur; Enide 50W; Enide 50; Dif 4; Difenamid; Lilly 34,314; N,N-Dimethyldiphenylacetamide

Frequently Asked Questions

What are the CAS number and molecular formula of N,N-dimethyl-2,2-diphenylacetamide?

CAS 957-51-7; molecular formula C16H17NO; molecular weight — g/mol.

What other names is N,N-dimethyl-2,2-diphenylacetamide known by?

DIPHENAMID, 957-51-7, N,N-Dimethyl-2,2-diphenylacetamide, Dimid, Dymid, Enide.

Is N,N-dimethyl-2,2-diphenylacetamide classified as hazardous?

Hazard statements reported: H302, H412.

What are the key physical properties of N,N-dimethyl-2,2-diphenylacetamide?

Melting Point: 134.5 TO 135.5 °C; Melting Point: 135 °C; Density: 1.17 @ 23.3 °C; Density: 1.2 g/cm³.

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.