91201-69-3

Basic information

• Product Name: 3-methoxybenzene-1,2-diyl dibenzoate
• CAS NO: 91201-69-3
• Molecular Formula: C₂₁H₁₆O₅
• Molecular Weight: 348.3487
• Mol File: 91201-69-3.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 548°C at 760 mmHg
• Flash Point: 241.6°C
• Density: 1.242g/cm³
• Vapor Pressure: 4.62E-12mmHg at 25°C
• Refractive Index: 1.602
• CAS DataBase Reference: 3-methoxybenzene-1,2-diyl dibenzoate(CAS DataBase Reference)
• NIST Chemistry Reference: 3-methoxybenzene-1,2-diyl dibenzoate(91201-69-3)
• EPA Substance Registry System: 3-methoxybenzene-1,2-diyl dibenzoate(91201-69-3)

Safety Data

• Hazardous Substances Data: 91201-69-3(Hazardous Substances Data)

Usage

General Description

3-methoxybenzene-1,2-diyl dibenzoate, also known as TMBDB, is a chemical compound with the molecular formula C25H20O5. It is a derivative of benzene and is commonly used as a cross-linking agent in the production of polymers and plastics. TMBDB is widely used in the manufacturing of electronic materials, coatings, adhesives, and resins. It is a colorless to pale yellow liquid with a faint aromatic odor and is considered to be relatively stable under normal conditions. TMBDB is known for its high thermal stability and is often used to improve the mechanical and thermal properties of various materials. Additionally, it is also used as a photoinitiator in UV-curable coatings and inks, making it a versatile chemical in various industrial applications.

Upstream product

• 934-00-9 3-methocycatechol 
• 98-88-4 benzoyl chloride 
• 91201-64-8 2a,8a-dihydro-2a,8a-diphenyl-4-methoxybenzo<1,2>dioxeto<3,4e><1,4>dioxin 
• 7446-70-0 aluminium trichloride 
• 91-10-1 1,3-dimethoxy-2-hydroxy-benzene 
• 98-95-3 nitrobenzene 
• 79-34-5 1,1,2,2-tetrachloroethane 
• 91201-56-8 2,3-diphenyl-5-methoxybenzo-1,4-dioxin 
• 1484-50-0 desyl bromide 

Relevant articles and documents

Synthesis, Thermal Stability, and Chemiluminescence Properties of the Dioxetanes Derived from 1,4-Dioxines

Photosensitized oxygenation of benzo- and naphtho-1,4-dioxins 3 afforded the corresponding 1,2-dioxetanes 4 in moderate to good yields.Ene products 7 were obtained in those cases in which the 1,4-dioxins 3 bear alkyl substituents.Thermal decomposition of the 1,2-dioxetanes 4 afford the corresponding diesters 5 essentially quantitatively.The X-ray crystal structures of the dioxetanes 4g, 4h, and 4j indicate that the four-membered rings are all essentially planar.These dioxetanes exhibit surprisingly similar thermal stabilities; the free energies of activation (ΔG(excit.)) at 298 K fall within 26 +/- 1 kcal/mol, the enthalpies of activation (ΔH(excit.)) within 24 +/- 1.5 kcal/mol, and the entropies of activation (ΔS(excit.)) within -6 +/- 2 eu.In their chemiluminescence properties they are inefficient sources of chemienergized, electronically excited diester products.The singlet excitation yields (ΦS) range between 0.0001percent and 0.003percent and the triplet excitation yields (ΦT) between 0.01percent and 3.5percent.They represent typical dioxetanes in that preferentially triplet excited carbonyl products are chemienergized.