Citations for: Yang, Z. D.; Zhang, X.; Li, T.; Li, Y. C.; Wang, Y. F., Isolation and Identification of New Impurities in Nomegestrol Acetate. Chem. Res. Chin. Univ. 2009, 25 (5), 653-656.

Entry Type
Name
Value
Parent Entry
Impurity
17α-Hydroxyl-3-oxoestrane-5β,17-dicarbonitrile
N/A
Impurities Data Field
Name
17α-hydroxyl-3-oxoestrane-5β,17-dicarbonitrile
17α-Hydroxyl-3-oxoestrane-5β,17-dicarbonitrile (Impurity)
Impurities Data Field
ID in reference
1
17α-Hydroxyl-3-oxoestrane-5β,17-dicarbonitrile (Impurity)
Impurities Data Field
Source
predicted to be a by-product of 1,4 addition of cyano group to 4-ene-3-one and to C17
17α-Hydroxyl-3-oxoestrane-5β,17-dicarbonitrile (Impurity)
Impurities Data Field
Spectra & Analytical Data
13C NMR shifts, 1H NMR shifts, IR peaks, EI-MS peaks, X-ray crystallography, melting point, optical rotation
17α-Hydroxyl-3-oxoestrane-5β,17-dicarbonitrile (Impurity)
Impurity
4-Ethyl-17α-hydroxyl-3-oxoestr-4-en-17-carbonitrile
N/A
Impurities Data Field
ID in reference
2
4-Ethyl-17α-hydroxyl-3-oxoestr-4-en-17-carbonitrile (Impurity)
Impurities Data Field
spectra & analytical data
13C NMR shifts, 1H NMR shifts, IR peaks, EI-MS peaks, melting point, optical rotation
4-Ethyl-17α-hydroxyl-3-oxoestr-4-en-17-carbonitrile (Impurity)
Impurity
4-Ethyl-estr-4-en-3,17-dione
N/A
Impurities Data Field
name
4-ethyl-estr-4-en-3,17-dione
4-Ethyl-estr-4-en-3,17-dione (Impurity)
Impurities Data Field
ID in reference
3
4-Ethyl-estr-4-en-3,17-dione (Impurity)
Impurities Data Field
spectra & analytical data
13C NMR shifts, 1H NMR shifts, IR peaks, EI-MS peaks, melting point, optical rotation
4-Ethyl-estr-4-en-3,17-dione (Impurity)
Impurity
3,17-Dioxoestrane-5α-carbonitrile
N/A
Impurities Data Field
name
3,17-dioxoestrane-5α-carbonitrile
3,17-Dioxoestrane-5α-carbonitrile (Impurity)
Impurities Data Field
ID in reference
4
3,17-Dioxoestrane-5α-carbonitrile (Impurity)
Impurities Data Field
spectra
13C NMR shifts, 1H NMR shifts, EI-MS peaks
3,17-Dioxoestrane-5α-carbonitrile (Impurity)
Impurity
17α-Hydroxyl-3-oxoestr-4-en-17-carbonitrile
N/A
Impurities Data Field
Name
17α-hydroxyl-3-oxoestr-4-en-17-carbonitrile
17α-Hydroxyl-3-oxoestr-4-en-17-carbonitrile (Impurity)
Impurity
17α-Hydroxyl-3-methoxyestra-1,3,5-triene-17β-carbonitrile
N/A
Impurities Data Field
Name
17α-hydroxyl-3-methoxyestra-1,3,5-triene-17β-carbonitrile
17α-Hydroxyl-3-methoxyestra-1,3,5-triene-17β-carbonitrile (Impurity)
Impurities Data Field
ID in reference
6
17α-Hydroxyl-3-methoxyestra-1,3,5-triene-17β-carbonitrile (Impurity)
Impurity
17β-Hydroxyl-3-methoxyestra-1,3,5-triene-17α-carbonitrile
N/A
Impurities Data Field
Name
17β-hydroxyl-3-methoxyestra-1,3,5-triene-17α-carbonitrile
17β-Hydroxyl-3-methoxyestra-1,3,5-triene-17α-carbonitrile (Impurity)
Impurities Data Field
ID In Reference
7
17β-Hydroxyl-3-methoxyestra-1,3,5-triene-17α-carbonitrile (Impurity)
Impurities Data Field
Spectra
13C NMR shifts, 1H NMR shifts, EI-MS peaks
17β-Hydroxyl-3-methoxyestra-1,3,5-triene-17α-carbonitrile (Impurity)
Impurity
NOMAC Impurity 09
N/A
Impurities Data Field
ID in reference
8
NOMAC Impurity 09 (Impurity)
Impurities Data Field
ID in reference
5
17α-Hydroxyl-3-oxoestr-4-en-17-carbonitrile (Impurity)
Impurities Data Field
Spectra
13C NMR shifts, 1H NMR shifts, EI-MS peaks
17α-Hydroxyl-3-oxoestr-4-en-17-carbonitrile (Impurity)
Impurities Data Field
Spectra
13C NMR shifts, 1H NMR shifts, EI-MS peaks
17α-Hydroxyl-3-methoxyestra-1,3,5-triene-17β-carbonitrile (Impurity)
Impurities Data Field
Spectra
13C NMR shifts, 1H NMR shifts, EI-MS peaks
NOMAC Impurity 09 (Impurity)