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HDMP-28 with an IUPAC name of methyl 2-(naphthalen-2-yl)-2-(piperidin-2-yl)acetate and a molecular weight of 283.37 is a new research compound. The CAS number for HDMP-28 is 219915-69-2 and the chemical formula is C18H21NO2. Since the chemical is new on the market, there is no research available at this time. The closest compound or analog to HDMP-28 is HDEP-28, so we can use this research chemical as an example.

HDEP-28 often referred to as ethylnaphthidate is a new research chemical with the IUPAC or formal name of ethyl 2-(naphthalen-2-yl)-2-(piperidin-2-yl)acetate, chemical formula of C19H23NO2, and a molecular mass of 297.40.

Research on HDEP-28 was published by ACD/Labs', US Environmental Protection Agency's EPISuite, and ChemAxon. In the reports by ACD/Labs the chemical has 3 hydrogen acceptors, 1 hydrogen donor, 4 freely rotating bonds, and an index of refraction of 1.585, with a surface tension of 44.4±3.0 dyne/cm, a flash point of 207.3±21.8 °C and a boiling point of 419.1±20.0 °C at 760 mmHg.

The research published by US Environmental Protection Agency's
EPISuite showed the boiling point to be 404.88, a melting point of 149.77, and water solubility at 25 deg C (mg/L): 65.21. Removal in wastewater treatment showed total removal at 28.27%, total biodegradation at .031%, total sludge adsorption at 27.96%, and total to air at 0.00%.

ChemAxon published a topology analysis, which revealed an atom count of 42, bond count of 44, cyclomatic number of 3, chain atom count of 5, chain bond count of 6, asymmetric atom count of 2, and rotatable bond count of 4. Under geometry, the report revealed a dreiding energy equal to 48.93 kcal/mol with a volume equal to 273.78 Å3, a minimal projection area equal to 51.26 Å2 and maximum projection area equal to 84.78Å2.

HDMP-28 and HDEP-28 are intended for research purposes in a controlled laboratory for scientific and forensic study only and is NOT intended for human or animal consumption.

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