Ethinylestradiol - Impurity K — Impurity Reference Standard

Buy Ethinylestradiol - Impurity K (CAS 155683-61-7) impurity reference standard from Spectrasynth Pharmachem. Custom synthesis available — enquire for pricing, COA and availability.

• Product Code: SSPC-E00012
• CAS No.: 155683-61-7
• Chemical Name: 4-Methyl Ethynyl Estradiol
• Synonyms: (17α)-4-Methyl-19-norpregna-1,3,5(10)-trien-20-yne-3,17-diol; Ethinyl Estradiol Impurity K (EP); 4-Methyl-ethinylestradiol; (8R,9S,13S,14S,17S)-17-Ethynyl-4,13-dimethyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-3,17-diol;
• Molecular Formula: C21H26O2
• Molecular Weight: 310.44
• Appearance: White to Off-White Solid
• Storage: 2-8°C Refrigerator
• Application: 4-Methyl Ethynyl Estradiol (Ethinylestradiol EP Impurity K) is an Ethynyl Estradiol impurity.