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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Norethisterone, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Norethisterone impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Norethisterone-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Norethisterone Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3a,5a-Tetrahydronorethisterone D5 Stable Isotopes CS-T-87315 122605-87-2 Enquire
3ß,5a-Tetrahydronorethisterone D5 Stable Isotopes CS-T-86467 122605-89-4 Enquire


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Norethisterone acetate API Standards CS-O-30673 38673-38-0 In Stock


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3β,5a-Tetrahydronorethisterone Impurities CS-T-61856 6424-05-1 In Stock
4,5a-Dihydronorethisterone Impurities CS-T-53110 52-79-9 Enquire
Norethisterone 3-hexenoate Impurities CS-EO-00889 Not Available Enquire
Norethisterone Acetate - Impurity D Impurities CS-O-40865 Not Available Enquire
Norethisterone Enanthate Impurities CS-T-83157 3836-23-5 Enquire
Norethisterone hexenoate Impurities CS-EO-00890 89094-33-7 Enquire
Norethisterone Octoate Impurities CS-EO-00891 120793-85-3 Enquire


EP Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Norethisterone (N1200000) EP Standards CS-EG-00639 68-22-4 Enquire
Norethisterone acetate for system suitability (Y0001532) EP Standards CS-EG-00634 51-98-9 Enquire


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3a,5a-Tetrahydronorethisterone Intermediates CS-T-87354 16392-60-2 Enquire