2778-42-9

Basic information

• Product Name: 1,3-BIS(2-ISOCYANATO-2-PROPYL)BENZENE
• Synonyms: isocyanicacid,m-phenylenediisopropylideneester;m-tetramethylxylenediisocyanate;m-tmxdi;tetramethyl-m-xylylenediisocyanate;1,3-BIS(2-ISOCYANATO-2-PROPYL)BENZENE;1,3-BIS(1-ISOCYANATO-1-METHYLETHYL)BENZENE;ALPHA,ALPHA,ALPHA',ALPHA'-TETRAMETHYL-1,3-XYLYLENE DIISOCYANATE;Bisisocyanotopropylbenzene
• CAS NO: 2778-42-9
• Molecular Formula: C₁₄H₁₆N₂O₂
• Molecular Weight: 244.29
• EINECS: 220-474-4
• Product Categories: Organics
• Mol File: 2778-42-9.mol
• Article Data: 1

Chemical Properties

• Melting Point: -10°C(lit.)
• Boiling Point: 106 °C0.9 mm Hg(lit.)
• Flash Point: 308 °F
• Appearance: /
• Density: 1.06 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.000619mmHg at 25°C
• Refractive Index: n20/D 1.511(lit.)
• Storage Temp.: 0-10°C
• Solubility: Chloroform (Slightly)
• Stability: Moisture Sensitive
• CAS DataBase Reference: 1,3-BIS(2-ISOCYANATO-2-PROPYL)BENZENE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-BIS(2-ISOCYANATO-2-PROPYL)BENZENE(2778-42-9)
• EPA Substance Registry System: 1,3-BIS(2-ISOCYANATO-2-PROPYL)BENZENE(2778-42-9)

Safety Data

• Hazard Codes: Xn,N,T+
• Statements: 20/21/22-36/37/38-43-50/53-48/23-36/38-26
• Safety Statements: 26-36-61-60-45-36/37-28
• RIDADR: 2206
• WGK Germany: 3
• RTECS: CY8480000
• HazardClass: 6.1(b)
• PackingGroup: III
• Hazardous Substances Data: 2778-42-9(Hazardous Substances Data)

Usage

Chemical Properties

Clear colorless to light yellow liquid

InChI:InChI=1/C14H16N2O2/c1-13(2,15-9-17)11-6-5-7-12(8-11)14(3,4)16-10-18/h5-8H,1-4H3

Upstream product

• 19937-49-6 1,3-bis(α-aminoisopropyl)benzene 
• 75-13-8 isocyanic acid 
• 3748-13-8 1,3-bis(1-methylethenyl)-benzene 

Downstream Products

• 178884-94-1 1,3-bis-(2-aza-1,1,9-trimethyl-3,8-dioxo-4,7-dioxa-9-decen-1-yl)-benzene 

Relevant articles and documents

Method for preparing isocyanate by using amine and carbonyl fluoride

The invention discloses an efficient synthesis method for preparing corresponding isocyanate by enabling carbonyl fluoride to directly react with amine. The efficient synthesis method mainly comprises the following two steps: carrying out acylation reaction on the amine and the carbonyl fluoride according to a preferable proportion in an anhydrous inertial organic solvent under a sealed environment and a proper reaction condition, thus generating an intermediate-carbamyl fluoride; (2) carrying out dehydrofluorination on the intermediate-carbamyl fluoride under normal pressure and the proper reaction condition, thus obtaining the target isocyanate. During a reaction process, addition of a catalyst is not needed, the reaction conditions are mild, excessive carbonyl fluoride and a used solvent during the reaction process can be efficiently recycled and reused, and a by-product HF can be commercially sold after being collected and refined.