(17a)-13-Ethyl-3-methoxy-18,19-dinorpregna-2,5(10)-dien-20-yn-17-ol (Levonorgestrel Impurity T)

CAS: 14507-51-8

Ref. TR-E922100

Product Information

• Name: (17a)-13-Ethyl-3-methoxy-18,19-dinorpregna-2,5(10)-dien-20-yn-17-ol (Levonorgestrel Impurity T)
• Synonyms: 18,19-Dinorpregna-2,5(10)-dien-20-yn-17-ol, 13-ethyl-3-methoxy-, (17α)-, 18,19-Dinor-17α-pregna-2,5(10)-dien-20-yn-17-ol, 13-ethyl-3-methoxy-, 13-Ethyl-3-methoxy-18,19-dinor-17α-pregna-2,5(10)-dien-20-yn-17-ol, Levonorgestrel Imp. T, (17α)-13-Ethyl-3-methoxy-18,19-dinorpregna-2,5(10)-dien-20-yn-17-ol, (8R,9S,13S,14S,17R)-13-ethyl-17-ethynyl-3-methoxy-4,6,7,8,9,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol (non-preferred name), 13-Ethyl-3-methoxy-18,19-dinor-17alpha-pregna-2,5(10)-dien-20-yn-17-ol, 18,19-Dinor-17α-pregna-2,5(10)-dien-20-yn-17-ol, 13-ethyl-3-methoxy-, 18,19-Dinorpregna-2,5(10)-dien-20-yn-17-ol, 13-ethyl-3-methoxy-, (17α)-

Description

Applications An impurity from the synthesis of Levonorgestrel (N689510), an oral contraceptive.
References Yoshida, F. et al.: J. Am. Chem., 43, 2575 (2000); Chem. Res. Tox., 21, 2280 (2008); Holm, R. et al.: Phys. Chem. Chem. Phys., 11, 5070 (2009);

• Brand: TRC

Chemical properties

• Molecular weight: 326.47
• Formula: C₂₂H₃₀O₂
• Color/Form: White to Off-White Solid
• InChI: InChI=1S/C22H30O2/c1-4-21-12-10-18-17-9-7-16(24-3)14-15(17)6-8-19(18)20(21)11-13-22(21,23)5-2/h2,7,18-20,23H,4,6,8-14H2,1,3H3/t18-,19-,20+,21+,22+/m1/s1
• SMILES: C#C[C@]1(O)CC[C@H]2[C@@H]3CCC4=C(CC=C(OC)C4)[C@H]3CC[C@@]21CC