Levonorgestrel Impurity 21
(5bS,7aS,8R)-7a-ethyl-8-ethynyl-8-hydroxy-4,5,5a,5b,6,7,7a,8,9,10,10a,10b,11,12-tetradecahydro-3H-cyclopenta[5,6]naphtho[2,1-c]oxepin-3-one
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货号： IL031321
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分子式：C21H28O3
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分子量：328.45
左炔诺孕酮杂质29(312.45)
797-64-8
左炔诺孕酮杂质27(312.45)
178737-52-5
左炔诺孕酮杂质26(314.43)
51773-49-0
左炔诺孕酮杂质24(340.46)
14507-47-2
左炔诺孕酮杂质23(298.38)
108027-10-7
左炔诺孕酮杂质22(324.42)
38165-80-9
