2-Hydroxy-4-methoxybenzophenone-2',3',4',5',6'-d5

2-Hydroxy-4-methoxybenzophenone-2',3',4',5',6'-d5, also known as HMDBP-d5, is a deuterated form of the organic compound 2-Hydroxy-4-methoxybenzophenone. It is a yellow crystalline powder that is soluble in organic solvents such as ethanol and acetone. HMDBP-d5 is commonly used as a UV-absorbing agent in sunscreens, cosmetics, and other personal care products. It functions by absorbing UV radiation in the 290-350 nm range, thereby protecting the skin from harmful UV rays. Additionally, it is also used as a photoinitiator in the polymer industry, where it enables the cross-linking of polymers under UV light. The chemical structure of HMDBP-d5 contains five deuterium atoms, making it useful for isotope labeling studies. Its molecular formula is C13D5H10O3, and it has a molecular weight of 225.28 g/mol. The compound has a melting point of 137-139 °C and a boiling point of 441.8 °C. In terms of safety, HMDBP-d5 is generally considered to be safe for use in cosmetics and personal care products. However, as with any chemical, it should be handled with care and proper protective equipment should be worn when handling the substance. Overall, HMDBP-d5 is a useful compound with a variety of applications in the cosmetic and polymer industries.