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

Estetrol Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Estetrol Monohydrate D3 Stable Isotopes CS-O-35460 Not Available Enquire
Estetrol-d4 (Major) Stable Isotopes CS-T-95118 Not Available Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Estetrol monohydrate API CS-ED-41548 2055649-81-3 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(8R,9S,13S,17R)-3,15,17-trihydroxy-13-methyl-7,8,11,12,13,17... Impurity CS-O-50612 Not Available Enquire
17α-Estetrol Impurity CS-O-52074 Not Available Enquire
3-((tert-butyldimethylsilyl)oxy)Estetrol Impurity CS-O-52073 1426679-39-1 Enquire
9,11-Dehydro Estetrol Impurity CS-O-49265 Not Available Enquire
ESTETROL IMPURITY 284 Impurity CS-O-47877 Not Available Enquire
Estetrol sulfate Impurity CS-O-52075 33965-34-3 Enquire


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Estetrol 16-glucuronide Glucuronide CS-O-58590 ---- Enquire
Estetrol 3-glucuronide Glucuronide CS-O-52076 38324-81-1 Enquire