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* Service & Products of Interested: [Isotope Labeled Impurities] 3β,5α-Tetrahydronorethisterone-[d5] (122605-89-4)
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3β,5α-Tetrahydronorethisterone-[d5]

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General Information
Catalog: BLP-002762
CAS: 122605-89-4
Molecular Formula: C20H25D5O2
Molecular Weight: 307.48

Chemical Structure

Description	3β,5α-Tetrahydronorethisterone-[d5] is the labelled analogue of 3β,5α-Tetrahydronorethisterone (Norethindrone Impurity 6). 3β,5α-Tetrahydronorethisterone is an impurity of Norethindrone, which is an oral contraceptive involved in the inhibition of cytosolic sulfotransferases.
Synonyms	3β,5α-Tetrahydronorethisterone D5; (3β,5α,17α)-19-Norpregn-20-yne-3,17-diol-d5; 19-Nor-5α,17α-pregn-20-yne-3β,17-diol-d5; 17α-Ethynyl-5α-oestrane-3β,17β-diol-d5
IUPAC Name	(3R,5S,8R,9R,10S,13S,14S,17R)-17-ethynyl-13-methylhexadecahydro-1H-cyclopenta[a]phenanthrene-2,2,3,4,4-d5-3,17-diol
Related CAS	6424-05-1 (unlabelled)