Used primarily in research settings as a metabolic intermediate of diltiazem, this compound aids in studying the pharmacokinetics and metabolic pathways of calcium channel blockers. It helps scientists understand how structural modifications influence biological activity, drug metabolism, and clearance rates. Due to its modified structure lacking the acetyl and dimethylaminoethyl groups, it may exhibit altered receptor binding properties, making it useful in structure-activity relationship (SAR) studies. It is not used therapeutically but supports the development and optimization of cardiovascular drugs.