Methyl 2-Benzoylbenzoate

Methyl 2-benzoylbenzoate (2-benzoylbenzoic acid methyl ester) has the molecular formula C15H12O3, a molecular weight of about 240.26 and CAS number 606-28-0, and is commonly referred to as MBB or OMBB in the industry. It is a white crystalline powder at room temperature with an assay (HPLC) of 99-100.5%, a melting point of 48-53°C, a boiling point of 352°C, a flash point above 110°C, residue on ignition ≤0.1% and loss on drying ≤0.5% (see specifications). The molecule carries both a benzoyl group and an ester group: the former absorbs energy in the ultraviolet region, and the industry uses this product as a photoinitiator (MBB/OMBB) for UV-curable systems, while the latter retains the typical reaction site of a carboxylic ester, allowing it to serve as an intermediate in dye and pigment synthesis.

Methyl 2-benzoylbenzoate (MBB/OMBB) is used as a photoinitiator in UV curing: the benzophenone skeleton of the molecule absorbs energy in the ultraviolet region and, after absorbing light, initiates the polymerization reaction that cures coatings. It is used in UV coatings and inks; the industry uses it for surface coating of wood, metal, plastic and other substrates and in the printing industry. Where used in food-contact material directions, compliance is subject to specific test reports and the regulations of the target market, and buyers are responsible for confirming compliant use. In the dye and pigment industry, the parent acid (BB acid) is a classic intermediate in anthraquinone synthesis, and this product can serve as an esterification feedstock in such routes, subject to each customer's process; it also serves as a fine-chemical feedstock in esterification, condensation and other organic synthesis reactions.

As a photoinitiator (MBB/OMBB), it initiates polymerization by absorbing ultraviolet light and enables curing of coatings; the industry uses it for surface coating of wood, metal, plastic and other substrates as well as the printing industry. Assay (HPLC 99-100.5%) and melting point (48-53°C) figures are listed in the specifications for item-by-item review. Where used in food-contact material directions, compliance is subject to specific test reports and the regulations of the target market, and buyers are responsible for confirming compliant use.

The parent acid (BB acid) is a classic intermediate in anthraquinone dye and pigment synthesis, and this product can serve as an esterification feedstock in such routes. Melting point and loss on drying figures are relevant to incoming-material verification before charging; batch data is confirmed with our sales team during inquiry. Specific synthesis routes follow each customer's process.

With its ester and carbonyl groups, it serves as a fine-chemical feedstock participating in esterification, condensation and other organic synthesis reactions; reaction conditions and usage levels follow the customer's own process validation, and additional specification requirements can be discussed item by item during inquiry.