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1918-18-9

1918-18-9 Structure

1918-18-9 Structure
IdentificationMore
[Name]

SWEP
[CAS]

1918-18-9
[Synonyms]

MCC
METHYL N-(3,4-DICHLOROPHENYL)CARBAMATE
SWEP
Swep emulsion
(3,4-dichlorophenyl)-carbamicacimethylester
3,4-Dichlorocarbanilic acid methyl ester
3,4-dichlorocarbanilicacidmethylester
3,4-dichloro-carbanilicacimethylester
Carbamic acid, (3,4-dichlorophenyl)-, methyl ester
Carbanilic acid, 3,4-dichloro-, methyl ester
FMC 2995
fmc2995
Methyl 3,4-dichlorocarbanilate
methyl3,4-dichlorocarbanilate
methyl3,4-dichlorophenylcarbamate
Methylester kyseliny 3,4-dichlorkarbanilove
methylesterkyseliny3,4-dichlorkarbanilove
methyl-n-(3,4-dichlorophenyl)carbamate[qr]
Nia 2,995
NIA 2995J
[Molecular Formula]

C8H7Cl2NO2
[MDL Number]

MFCD00018142
[Molecular Weight]

220.05
[MOL File]

1918-18-9.mol
Chemical PropertiesBack Directory
[Appearance]

Crystals. Insoluble in water and kerosene; soluble in acetone and dimethylformamide.
[Melting point ]

112-114℃
[Boiling point ]

252.3±30.0 °C(Predicted)
[density ]

1.2748 (rough estimate)
[refractive index ]

1.5500 (estimate)
[storage temp. ]

0-6°C
[solubility ]

Chloroform (Slightly), Methanol (Slightly)
[form ]

neat
[pka]

12.32±0.70(Predicted)
[BRN ]

2805600
[Henry's Law Constant]

8.2×102 mol/(m3Pa) at 25℃, HSDB (2015)
[Uses]

Herbicide.
[CAS DataBase Reference]

1918-18-9(CAS DataBase Reference)
[EPA Substance Registry System]

Swep (1918-18-9)
Safety DataBack Directory
[Hazard Codes ]

Xn
[Risk Statements ]

R22:Harmful if swallowed.
[WGK Germany ]

1
[RTECS ]

FD8750000
[Hazardous Substances Data]

1918-18-9(Hazardous Substances Data)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Methyl chloroformate-->3,4-Dichloroaniline-->Isocyanic acid 3,4-dichlorophenyl ester
Hazard InformationBack Directory
[Chemical Properties]

Crystals. Insoluble in water and kerosene; soluble in acetone and dimethylformamide.
[Definition]

ChEBI: SWEP is a carbamate ester.
[Production Methods]

Commercial manufacture of swep is based on a straightforward carbamate forming sequence: producers first generate the key aromatic amine, 3,4 dichloroaniline, then react it with methyl chloroformate (or an equivalent carbamoylating agent) under controlled, typically alkaline, conditions to form the carbamate linkage. The process is optimised to minimise side reactions such as over acylation or hydrolysis, and the resulting crude product is purified by standard solvent based processes and crystallisation to yield technical grade swep.
[Hazard]

Toxic by ingestion.
[Mechanism of action]

Interferes with metabolic processes and inhibits cell division at the growth point
[Pesticide Type]

Herbicide
Spectrum DetailBack Directory
[Spectrum Detail]

SWEP(1918-18-9)MS
SWEP(1918-18-9)1HNMR
SWEP(1918-18-9)13CNMR
SWEP(1918-18-9)IR1
SWEP(1918-18-9)IR2
Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

1918-18-9(sigmaaldrich)
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598-55-0 107-31-3 1918-18-9