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Name	Fenuron	EINECS	N/A
CAS No.	101-42-8	Density	1.122g/cm³
PSA	32.34000	LogP	1.85310
Solubility	2.40g/L(25 oC)	Melting Point	131-133°
Formula	C9H12 N2 O	Boiling Point	329.8°Cat760mmHg
Molecular Weight	164.207	Flash Point	153.3°C
Transport Information	N/A	Appearance	N/A
Safety	Moderately toxic by ingestion. Mutation data reported. When heated to decomposition it emits toxic fumes of NO_x.	Risk Codes	36/37-36-20/21/22-11
Molecular Structure		Hazard Symbols	Xi,Xn,F
Synonyms	Urea,1,1-dimethyl-3-phenyl- (8CI); 1,1-Dimethyl-3-phenylurea;1-Phenyl-3,3-dimethylurea; 3-Phenyl-1,1-dimethylurea; Amicure UR; Dibar; Dybar;Dyhard RU 300; Dyhard UR 300; Falisilvan; Fenuron; Fikure 62U;N,N-Dimethyl-N'-phenylurea; N-Phenyl-N',N'-dimethylurea; Omicure 94; Omicure U405; PUD	Article Data	109

Fenuron Synthetic route

: 62-53-3
aniline

: 79-44-7
N,N-Dimethylcarbamoyl chloride

: 101-42-8
fenuron

Conditions

Conditions	Yield
With sodium carbonate; sodium iodide In hexane at 50℃; for 16h; pH=7;	97%
With pyridine; dmap In dichloromethane at 20℃; Sealed tube;	89%
With N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃; for 2h;	89%

: 103-71-9
phenyl isocyanate

: 124-40-3
dimethyl amine

: 101-42-8
fenuron

Conditions

Conditions	Yield
In water; toluene at 75℃; for 4h;	95%
In water; toluene for 4h; Heating;	95%
In toluene at 80℃; for 1h;	95%

: 15249-51-1
N,N-dimethylcarbamoyl bromide

: 62-53-3
aniline

: 101-42-8
fenuron

Conditions

Conditions	Yield
With sodium carbonate In hexane at 50℃; for 6h; pH=5 - 6;	95%

: [{Ph2P(Se)NCH2CH2NPPh2(Se)}Ti(NMe2)2]

: 103-71-9
phenyl isocyanate

: 101-42-8
fenuron

Conditions

Conditions	Yield
Stage #1: [{Ph2P(Se)NCH2CH2NPPh2(Se)}Ti(NMe2)2]; phenyl isocyanate In toluene at 25℃; for 0.166667h; Schlenk technique; Inert atmosphere; Stage #2: With 2,6-diisopropylbenzenamine In toluene at 25℃; for 1h; Schlenk technique; Inert atmosphere;	95%

: 13279-22-6
1-(phenylaminocarbonyl)aziridine

: 124-40-3
dimethyl amine

A: 151-56-4
ethyleneimine

B: 101-42-8
fenuron

Conditions

Conditions	Yield
In ethanol at 18 - 25℃; for 168h;	A n/a B 94%

: 77066-66-1
5-<(Dimethylamino)methylenamino>-5-(N',N'-dimethyl-N-phenylureido)-1,3-diphenyl-2,4-imidazolidindion

A: 101-42-8
fenuron

B: 6488-59-1
diphenylparabanic acid

C: 20353-92-8
N',N'-dimethyl-formamidin-hydrochlorid

Conditions

Conditions	Yield
With hydrogenchloride In ethanol for 0.166667h; Heating;	A 81% B 90% C 74%

: 81106-50-5
N'-(2-Bromophenyl)-N,N-dimethylurea

: 101-42-8
fenuron

Conditions

Conditions	Yield
Stage #1: N'-(2-Bromophenyl)-N,N-dimethylurea With methyllithium at 0℃; Stage #2: With tert.-butyl lithium at 0℃; Stage #3: With ammonium chloride	90%
With water; methyllithium; tert.-butyl lithium 1.) THF, 0 deg C, 2.) THF, 0 deg C; Yield given; Multistep reaction;

: 506-59-2
N,N-dimethylammonium chloride

: 103-71-9
phenyl isocyanate

: 101-42-8
fenuron

Conditions

Conditions	Yield
With triethylamine In dichloromethane at 0 - 20℃;	89%
Stage #1: N,N-dimethylammonium chloride; phenyl isocyanate In dichloromethane for 0.333333h; Inert atmosphere; Stage #2: With triethylamine In dichloromethane at 20℃; for 16h;	89%
Stage #1: N,N-dimethylammonium chloride With triethylamine In dichloromethane at 0℃; for 0.166667h; Stage #2: phenyl isocyanate In dichloromethane at 20℃; for 16h;

: 2083-91-2
N,N-Dimethyltrimethylsilylamine

: 2603-10-3
N-phenyl methyl carbamate

: 101-42-8
fenuron

Conditions

Conditions	Yield
With sulfuric acid In xylene for 3h; Heating;	87.8%

: 50-00-0
formaldehyd

: 107-97-1
sarcosine

: 103-71-9
phenyl isocyanate

: 101-42-8
fenuron

Conditions

Conditions	Yield
In benzine for 3.5h; Reflux;	87%

Fenuron Chemical Properties

Chemical Name: Fenuron
IUPAC NAME: Fenuron
CAS No.: 101-42-8
EINECS: 202-941-4
RTECS: YT1450000
Molecular Formula: C₉H₁₂N₂O
Molecular Weight: 164.2 g/mol
Density: 1.122 g/cm³
Flash Point: 153.3 °C
Boiling Point: 329.8 °C at 760 mmHg
Storage temp.: APPROX 4°C
Following is the structure of Fenuron (CAS No.101-42-8):

The chemical synonymous of Fenuron (CAS No.101-42-8) are PDU ; PDU(R) ; Fenuron ; Kayron ; Fenidin ; Fenuron ; Dybar(R) ; Dyhard(R) Ur 300

Fenuron Toxicity Data With Reference

1.	dni-mus-orl 500 mg/kg	MUREAV Mutation Research. 58 (1978),353.
2.	orl-rat LD50:6400 mg/kg	FMCHA2 Farm Chemicals Handbook .(Meister Publishing,Willoughy, OH.: )1980,D137.
3.	orl-mus LD50:4700 mg/kg	GISAAA Gigiena i Sanitariya. 47 (3)(1982),82.
4.	orl-rbt LD50:4700 mg/kg	GISAAA Gigiena i Sanitariya. 47 (3)(1982),82.
5.	orl-gpg LD50:3200 mg/kg	GISAAA Gigiena i Sanitariya. 40 (10)(1975),22.

Fenuron Consensus Reports

Reported in EPA TSCA Inventory.

Fenuron Safety Profile

Moderately toxic by ingestion. Mutation data reported. When heated to decomposition it emits toxic fumes of NO_x.
Hazard Codes: Harmful Xn F Irritant Xi
sk Statements about Fenuron (CAS No.101-42-8):
R11:Highly flammable.
R36:Irritating to eyes.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
R36/37:Irritating to eyes and respiratory system.
Safety Statements about Fenuron (CAS No.101-42-8):
S16:Keep away from sources of ignition.
S24:Avoid contact with skin.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.

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