Replaces Prod. #: ALX-270-119 Selective, cell permeable inhibitor of cAMP-specific phosphodiesterase (PDE IV, IC50=1 µM). A rolipram insensitive PDE IV subtype has been described. Product Specification Formula: C16H21NO3 MW: 275.4 Purity: ≥98% (TLC) Appearance: White to off-white solid. CAS: 61413-54-5 MI: 14: 8251 RTECS: UY5749237 Solubility: Soluble in DMSO (25mg/ml, warm), 100% ethanol (25mg/ml, warm) or acetone. Shipping: AMBIENT Long Term Storage: +20°C Use/Stability: Stable for at least 5 year after receipt when stored at +20°C. Stock solutions are stable for up to 3 months at -20°C. Hazard: IRRITANT.