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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Ethynylestradiol, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Ethynylestradiol 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 Ethynylestradiol-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.

Ethynylestradiol Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
17α-Ethynylestradiol-16,16-d2 3-Methyl Ether Stable Isotopes CS-C-01053 72-33-3 (Unlabelled) Enquire
17α-Ethynylestradiol-2,4,16,16-d4 3-Methyl Ether Stable Isotopes CS-C-01068 72-33-3 (Unlabelled) Enquire
Ethynylestradiol-16,16-d2 ethynyl-13C2 Stable Isotopes CS-O-52760 57-63-6 (Unlabelled) Enquire


Steroids

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
delta-8(9)-Ethynylestradiol Steroids CS-O-43430 100019-04-3 Enquire