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meta-dinitrobenzene
carbon monoxide
A
isocyanic acid (3-nitro-phenyl) ester
B
1,3-Phenylene diisocyanate
Conditions | Yield |
---|---|
With MoO3+Fe2O3 on Al2O3; trimethyleneglycol In 1,2-dichloro-benzene at 210℃; under 228000 Torr; | A 8% B 75% |
Conditions | Yield |
---|---|
With benzene | |
In toluene at 80℃; for 2h; Inert atmosphere; | |
In toluene for 2h; Reflux; |
Conditions | Yield |
---|---|
With phosphorus pentoxide bei der Destillation; |
Conditions | Yield |
---|---|
With 2-chloro-1,3,2-benzodioxaborole; triethylamine In toluene 1.) reflux, 5 min, 2.) 0.5 h; | 98 % Chromat. |
Conditions | Yield |
---|---|
for 4h; Heating; | 100% |
1,3-Phenylene diisocyanate
butan-1-ol
(3-Butoxycarbonylamino-phenyl)-carbamic acid butyl ester
Conditions | Yield |
---|---|
for 4h; Heating; | 100% |
Conditions | Yield |
---|---|
for 36h; Heating; | 98% |
1,3-Phenylene diisocyanate
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 12h; | 97% |
Chemical Name: 1,3-Phenylene diisocyanate
IUPAC NAME: 1,3-Diisocyanatobenzene
CAS No.: 123-61-5
EINECS: 204-637-7
Molecular Formula: C8H4N2O2
Molecular Weight: 160.13 g/mol
Melting Point: 49-51 °C(lit.)
Density: 1.17 g/cm3
Flash Point: 99.1 °C
Boiling Point: 226.8 °C at 760 mmHg
Storage temp.: Refrigerator (+4°C)
Sensitive: Moisture Sensitive
Following is the structure of Benzene-1,3-diisocyanate (CAS No.123-61-5):
Product Categories about Benzene-1,3-diisocyanate (CAS No.123-61-5) are Isocyanate Monomers ; Monomers ; Polymer Science
The chemical synonymous of Benzene-1,3-diisocyanate (CAS No.123-61-5) are 1,3-Diisocyanato-Benzen ; 1,3-Diisocyanatobenzene ; Benzene, 1,3-Diisocyanato- ; Benzene, M-Diisocyanato- ; Benzene,1,3,-Diisocyanato- ; Benzene,1,3-Diisocyanato- ; Isocyanic Acid, M-Phenylene Ester ; Isocyanicacid,M-Phenyleneester
1. | ivn-mus LD50:5600 µg/kg | CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) NX#07804 . |
Reported in EPA TSCA Inventory. Cyanide and its compounds are on the Community Right-To-Know List.
A sensitizer at very low concentrations. Deadly poison by intravenous route. When heated to decomposition it emits toxic fumes of NOx and CN−. See also ESTERS.
Hazard Codes: Xn
Risk Statements about Benzene-1,3-diisocyanate (CAS No.123-61-5):
R42:May cause sensitization by inhalation.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements about Benzene-1,3-diisocyanate (CAS No.123-61-5):
S22:Do not breathe dust.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37:Wear suitable protective clothing and gloves.
Attention:
1. Storage: Store in a tightly closed container. Store in a dry area. Keep refrigerated. (Store below 4°C/39°F.) Store under nitrogen.
2. Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
NIOSH REL: TWA (Diisocyanates) 0.005 ppm; CL 0.02 ppm/10M