Impurity Reference Standard - Products

In Stock
Justification
Custom Synthesis

Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Norethindrone and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Norethindrone impurities, metabolites, nitrosamine derivatives (N-NO compounds), and stable isotope-labeled products. These reference standards play a critical role in pharmaceutical R&D, supporting activities such as product formulation, ANDA and DMF submissions, quality assurance, analytical method development, and stability assessments.
All Norethindrone-related substances undergo comprehensive characterization and are delivered with complete Certificates of Analysis and supporting analytical documentation to ensure regulatory adherence. Upon request, we can offer EP/USP traceable standards. Our products are routinely re-evaluated to maintain consistent quality and performance.

Norethindrone

CAT No: CL-NTDN-01 CAS No: 68-22-4 Mol Wt: 298.4 Mol F: C20H26O2 Inv Status: Custom Synthesis

Chemical Name: 17-Hydroxy-19-nor-17?-pregn-4-en-20-yn-3-one

Norethindrone EP Impurity A

CAT No: CL-NTDN-02 CAS No: 31528-46-8 Mol Wt: 296.4 Mol F: C20H24O2 Inv Status: Custom Synthesis

Chemical Name: 17-hydroxy-19-nor-17?-pregna-4,6-dien-20-yn-3-one

Norethindrone EP Impurity B

CAT No: CL-NTDN-03 CAS No: 734-32-7 Mol Wt: 272.4 Mol F: C18H24O2 Inv Status: Custom Synthesis

Chemical Name: Estr-4-ene-3,17-dione ; Estr-4-ene-3,17-dione (as per USP)

Norethindrone EP Impurity C

CAT No: CL-NTDN-04 CAS No: 22933-71-7 Mol Wt: 272.4 Mol F: C20H26O2 Inv Status: Custom Synthesis

Chemical Name: 17-hydroxy-19-nor-17?-pregn-5-en-20-yn-3-one

Norethindrone EP Impurity D

CAT No: CL-NTDN-05 CAS No: 68-23-5 Mol Wt: 298.4 Mol F: C20H26O2 Inv Status: Custom Synthesis

Chemical Name: 17-hydroxy-19-nor-17?-pregn-5(10)-en-20-yn-3-one

Norethindrone EP Impurity E

CAT No: CL-NTDN-06 CAS No: 79727-03-0 Mol Wt: 306.5 Mol F: C22H26O Inv Status: Custom Synthesis

Chemical Name: 3-ethynyl-19-nor-17?-pregna-3,5-dien-20-yn-17-ol

Norethindrone EP Impurity F

CAT No: CL-NTDN-07 CAS No: 96487-85-3 Mol Wt: 326.5 Mol F: C22H30O2 Inv Status: Custom Synthesis

Chemical Name: 3-ethoxy-19-nor-17?-pregna-3,5-dien-20-yn-17-ol

Norethindrone EP Impurity G

CAT No: CL-NTDN-08 CAS No: 38673-36-8 Mol Wt: 298.4 Mol F: C20H26O2 Inv Status: Custom Synthesis

Chemical Name: 17-hydroxy-19-norpregn-4-en-20-yn-3-one

Norethindrone EP Impurity H

CAT No: CL-NTDN-09 CAS No: 51724-44-8 Mol Wt: 314.4 Mol F: C20H26O3 Inv Status: Custom Synthesis

Chemical Name: 6?,17-dihydroxy-19-nor-17?-pregn-4-en-20-yn-3-one

Norethindrone 3-Isopropoxy Impurity

CAT No: CL-NTDN-10 CAS No: NA Mol Wt: 340.5 Mol F: C23H32O2 Inv Status: Custom Synthesis

Chemical Name: 17?-Hydroxy-3-isopropoxy-17a-ethynylestr-3,5-diene

Norethindrone 4,5a-Dihydro Impurity

CAT No: CL-NTDN-11 CAS No: 52-79-9 Mol Wt: 300.4 Mol F: C20H28O2 Inv Status: Custom Synthesis

Chemical Name: 17?-Ethynyl-17?-hydroxy-5?-estran-3-one

Norethindrone 6-Alpha-Hydroxy Impurity

CAT No: CL-NTDN-12 CAS No: 438244-33-8 Mol Wt: 314.4 Mol F: C20H26O3 Inv Status: Custom Synthesis

Chemical Name: 6?,17?-Dihydroxy-17?-ethynylestr-4-en-3-one

Norethindrone 6-Oxo Impurity

CAT No: CL-NTDN-13 CAS No: 67696-78-0 Mol Wt: 312.4 Mol F: C20H24O3 Inv Status: Custom Synthesis

Chemical Name: 17?-Hydroxy-17?-ethynylestr-4-en-3,6-dione

19-Nor-4-Androstene-3,17-Dione

CAT No: CL-NTDN-14 CAS No: 5144-25-2 Mol Wt: 286.4 Mol F: C19H26O2 Inv Status: Custom Synthesis

Chemical Name: (8S,9S,10R,13S,14S)-10,13-dimethyl-7,8,9,10,11,12,13,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17(2H,6H)-dione

Norethindrone Enanthate

CAT No: CL-NTDN-15 CAS No: 3836-23-5 Mol Wt: 410.6 Mol F: C27H38O3 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl heptanoate

10-Beta-Hydroxy Norethindrone Impurity

CAT No: CL-NTDN-16 CAS No: 1236-00-6 Mol Wt: 314.4 Mol F: C20H26O3 Inv Status: Custom Synthesis

Chemical Name: (8S,9S,10S,13S,14S,17R)-17-ethynyl-10,17-dihydroxy-13-methyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one

Norethisterone 3-Hexenoate

CAT No: CL-NTDN-17 CAS No: NA Mol Wt: 394.6 Mol F: C26H34O3 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl (E)-hex-3-enoate

Norethisterone Hexenoate

CAT No: CL-NTDN-18 CAS No: 89094-33-7 Mol Wt: 396.6 Mol F: C26H36O3 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl hexanoate

Norethisterone Octoate

CAT No: CL-NTDN-19 CAS No: 120793-85-3 Mol Wt: 424.6 Mol F: C28H40O3 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl octanoate

10b-Hydroxy-Norethisterone Enantate

CAT No: CL-NTDN-20 CAS No: NA Mol Wt: 426.6 Mol F: C27H38O4 Inv Status: Custom Synthesis

Chemical Name: (8S,9S,10S,13S,14S,17R)-17-ethynyl-10-hydroxy-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl heptanoate

2a-Cyano Ethisterone

CAT No: CL-NTDN-21 CAS No: 13648-12-9 Mol Wt: 337.5 Mol F: C22H27NO2 Inv Status: Custom Synthesis

Chemical Name: (2S,8R,9S,10R,13S,14S,17R)-17-Ethynyl-17-hydroxy-10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-2-carbonitrile

6a-10b-Dihydroxy-Norethisterone Enantate

CAT No: CL-NTDN-22 CAS No: NA Mol Wt: 442.6 Mol F: C27H38O5 Inv Status: Custom Synthesis

Chemical Name: (6S,8S,9S,10S,13S,14S,17R)-17-ethynyl-6,10-dihydroxy-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl heptanoate

6a-Hydroxy-Norethisterone Enantate

CAT No: CL-NTDN-23 CAS No: NA Mol Wt: 426.6 Mol F: C27H38O4 Inv Status: Custom Synthesis

Chemical Name: (6S,8R,9S,10R,13S,14S,17R)-17-ethynyl-6-hydroxy-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl heptanoate

6b-10b-Dihydroxy-Norethisterone Enantate

CAT No: CL-NTDN-24 CAS No: NA Mol Wt: 442.6 Mol F: C27H38O5 Inv Status: Custom Synthesis

Chemical Name: (6R,8S,9S,10S,13S,14S,17R)-17-ethynyl-6,10-dihydroxy-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl heptanoate

6b-Hydroxy-Norethisterone Enantate

CAT No: CL-NTDN-25 CAS No: NA Mol Wt: 426.6 Mol F: C27H38O4 Inv Status: Custom Synthesis

Chemical Name: (6R,8R,9S,10R,13S,14S,17R)-17-ethynyl-6-hydroxy-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl heptanoate

6-Chloro Norethindrone Acetate

CAT No: CL-NTDN-26 CAS No: NA Mol Wt: 374.9 Mol F: C22H27ClO3 Inv Status: Custom Synthesis

Chemical Name: (6S,8R,9S,10R,13S,14S,17R)-6-chloro-17-ethynyl-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl acetate

6-Keto-Norethisterone Enantate

CAT No: CL-NTDN-27 CAS No: NA Mol Wt: 424.6 Mol F: C27H36O4 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-3,6-dioxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl heptanoate

Norethindrone Impurity A

CAT No: CL-NTDN-28 CAS No: NA Mol Wt: 426.6 Mol F: C26H34O5 Inv Status: Custom Synthesis

Chemical Name: (8S,9S,10S,13S,14S,17R)-17-ethynyl-10-hydroperoxy-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl (E)-hex-3-enoate

2,6-Dihydroxy Norethindrone Acetate

CAT No: CL-NTDN-29 CAS No: NA Mol Wt: 372.5 Mol F: C22H28O5 Inv Status: Custom Synthesis

Chemical Name: (2S,6R,8R,9S,10R,13S,14S,17R)-17-ethynyl-2,6-dihydroxy-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl acetate

5b-Dihydronorethisterone

CAT No: CL-NTDN-30 CAS No: 28044-91-9 Mol Wt: 300.4 Mol F: C20H28O2 Inv Status: Custom Synthesis

Chemical Name: (5R,8R,9R,10S,13S,14S,17R)-17-ethynyl-17-hydroxy-13-methylhexadecahydro-3H-cyclopenta[a]phenanthren-3-one

6-Keto-4-Hydroxy Norethindrone Acetate

CAT No: CL-NTDN-31 CAS No: NA Mol Wt: 372.5 Mol F: C22H28O5 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17R)-17-ethynyl-4-hydroxy-13-methyl-3,6-dioxohexadecahydro-1H-cyclopenta[a]phenanthren-17-yl acetate

6-Chloro Norethindrone

CAT No: CL-NTDN-32 CAS No: 103193-05-1 Mol Wt: 332.9 Mol F: C20H25ClO2 Inv Status: Custom Synthesis

Chemical Name: (6S,8R,9S,10R,13S,14S,17R)-6-chloro-17-ethynyl-17-hydroxy-13-methyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one

Norethindrone Impurity 1

CAT No: CL-NTDN-33 CAS No: NA Mol Wt: 296.4 Mol F: C20H24O2 Inv Status: Custom Synthesis

Chemical Name: (8R,9R,10R,16R,17S)-17-ethynyl-16-hydroxy-17-methyl-1,2,6,7,8,9,10,11,12,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one

Norethindrone Impurity 2

CAT No: CL-NTDN-34 CAS No: 714964-42-8 Mol Wt: 313.4 Mol F: C20H27NO2 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17R,E)-17-ethynyl-17-hydroxy-13-methyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one oxime

Norethindrone D6

CAT No: CL-NTDN-35 CAS No: 2376036-05-2 Mol Wt: 304.5 Mol F: C20H20D6O2 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17R)-17-ethynyl-17-hydroxy-13-methyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one-2,2,4,6,6,10-d6

Norethindrone D7

CAT No: CL-NTDN-36 CAS No: NA Mol Wt: 305.5 Mol F: C20H19D7O2 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,13S,14S,17R)-17-ethynyl-17-hydroxy-13-methyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one-2,2,4,6,6,7,10-d7

Norethindrone D8

CAT No: CL-NTDN-37 CAS No: NA Mol Wt: 306.5 Mol F: C20H18D8O2 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17R)-17-ethynyl-17-hydroxy-13-methyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one-2,2,4,6,6,10,16,16-d8

Type:Impurity Reference Standard

Total Products: 37

Inv. Status:

Norethindrone Related Products

Products

Popular Links

Address(India):

Address(Bangladesh):

Subscribe for news letter:

CAT No:
CAS No:
Mol Wt:
Mol Formula:
Chemical Name:

CAT No:
CAS No:
Mol Wt:
Mol Formula:
Chemical Name:

CAT No:
CAS No:
Mol Wt:
Mol Formula:
Chemical Name:

CAT No:
CAS No:
Mol Wt:
Mol Formula:
Chemical Name: