440027

3,3′-Dimethoxy-4,4′-biphenylene diisocyanate

85%, technical grade

• Linear Formula: [-C₆H₃(OCH₃)NCO]₂
• CAS Number: 91-93-0
• Molecular Weight: 296.28
• MDL number: MFCD00013847
• UNSPSC Code: 12352100
• PubChem Substance ID: 24867559

Properties

• grade: technical grade
• Assay: 85%
• impurities: <15% toluene
• mp: 112-116 °C (lit.)
• SMILES string: COc1cc(ccc1N=C=O)-c2ccc(N=C=O)c(OC)c2
• InChI: 1S/C16H12N2O4/c1-21-15-7-11(3-5-13(15)17-9-19)12-4-6-14(18-10-20)16(8-12)22-2/h3-8H,1-2H3
• InChI key: QZWKEPYTBWZJJA-UHFFFAOYSA-N

Description

General description

3,3′-Dimethoxy-4,4′-biphenylene diisocyanate is an aromatic diisocyanate. It participates as reagent for the curing of elastomers.

Application

3,3′-Dimethoxy-4,4′-biphenylene diisocyanate may be used for the following studies:

• Preparation of azo urethane oligomers (PUs) by reaction with Disperse Red 19.
• Synthesis of microporous polyisocyanurate (PICU-A) material, via cyclotrimerization over an N-heterocyclic carbene (NHC) catalyst.
• Synthesis of series of maleimide-thiophene copolymers having pendent 2-hydroxyethyl and 6-hydroxyhexyl groups.

Safety Information

• Pictograms: GHS06,GHS08
• Signal Word: Danger
• Hazard Statements: H301 + H311 + H331,H317,H334
• Precautionary Statements: P261 - P264 - P280 - P301 + P310 - P302 + P352 + P312 - P304 + P340 + P311
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Resp. Sens. 1 - Skin Sens. 1
• Storage Class Code: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Flash Point(F): 170.6 °F - closed cup
• Flash Point(C): 77 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves