we supply high quality PMk oil and Powde purity %9 ,delivery is safe ,secured and gaurantee Product name:Piperonyl Methyl Keton CAS:4676-39- Molecular Formula:C10H10O Formula Weight:178.1 Appearance: Yellowish oily liqui Description:Used as pharmaceutical intermediates for synthetic antibacterial anti-inflammatory drugs berberine, L-methyldopa, cardiovascular drugs anti-hypertensive and anti-tumor drugs