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286850

Sigma-Aldrich

19-Norethindrone

98%

Synonym(s):

17α-Ethynyl-19-nortestosterone, 17-Hydroxy-19-nor-17α-4-pregnen-20-yn-3-one, 17α-Ethynyl-17β-hydroxy-19-nor-4-androsten-3-one, 19-Nor-17α-ethynyl-4-androsten-17β-ol-3-one, 19-Norethisterone

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About This Item

Empirical Formula (Hill Notation):
C20H26O2
CAS Number:
68-22-4
Molecular Weight:
298.42
Beilstein/REAXYS Number:
1915671
EC Number:
200-681-6
MDL number:
MFCD00067596
UNSPSC Code:
12352103

assay

98%

optical activity

[α]20/D −24°, c = 1 in chloroform

mp

205-206 °C (lit.)

SMILES string

[H][C@]12CCC(=O)C=C1CC[C@]3([H])[C@]2([H])CC[C@@]4(C)[C@@]3([H])CC[C@@]4(O)C#C

InChI

1S/C20H26O2/c1-3-20(22)11-9-18-17-6-4-13-12-14(21)5-7-15(13)16(17)8-10-19(18,20)2/h1,12,15-18,22H,4-11H2,2H3/t15-,16+,17+,18-,19-,20-/m0/s1

InChI key

VIKNJXKGJWUCNN-XGXHKTLJSA-N

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Biochem/physiol Actions

19-norethindrone is an oral contraceptive involved in the inhibition of cytosolic sulfotransferases (SULT).

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Certificates of Analysis (COA)

Lot/Batch Number
18717LR
10606TY
01812CB
23321PO
16601CI

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