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

Estrone Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
∆8,9-Dehydro Estrone-d4 3-Sulfate Sodium Salt Stable Isotopes CS-T-99314 Not Available Enquire
2-Methoxyestrone-1,4,16,16 D4 Stable Isotopes CS-O-39550 949885-90-9 Enquire
3-Oleoylestrone-2,4,16,16-d4 Stable Isotopes CS-C-01099 443791-75-1 Enquire
3-O-Methyl Estrone-d5 Hydrazone Stable Isotopes CS-T-99479 Not Available Enquire
4-Hydroxy Estrone 1-N3-(15N5) Adenine Formate Salt Stable Isotopes CS-T-103001 1033301-98-2(Unlabelled) Enquire
4-Methoxyestrone-1,2,16,16-d4 Stable Isotopes CS-C-01028 58562-33-7(unlabelled) Enquire
Estrone Sulfate D4 Stable Isotopes CS-EO-03542 735254-54-3 Enquire
Estrone-2,4,16,16-d4 3-O-Beta-D-Glucuronide Stable Isotopes CS-O-36898 870061-18-0 In Stock
Estrone-2,4-d2 Stable Isotopes CS-T-94790 350820-16-5 Enquire
Estrone-3-sulfate-d5 Sodium Salt Stable Isotopes CS-O-36897 2734919-86-7 Enquire
Estrone-D4 IN ACETONITRILE 100 μG/ML Stable Isotopes CS-O-48173 53866-34-5 Enquire
ESTRONE-d4 IN ACETONITRILE 100 μG/ML Stable Isotopes CS-O-48158 53866-34-5 Enquire
Estrone-D5 Stable Isotopes CS-EO-01356 Not Available Enquire
Estrone-d5 β-D-Glucuronide Sodium Salt Stable Isotopes CS-T-98462 Not Available Enquire
Estrone-D6 Stable Isotopes CS-EO-02526 Not Available Enquire
Estrone-d7 Stable Isotopes CS-O-47376 53-16-7 (unlabeled) Enquire
Sodium Estrone Sulfate-d2 Stable Isotopes CS-O-49826 438-67-5(Unlabelled) In Stock
Sodium Estrone-d4 Sulfate Stable Isotopes CS-O-06594 285979-80-8 In Stock


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Estrone API CS-O-10855 53-16-7 In Stock


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Delta 8,9-Dehydro Estrone Metabolite CS-O-07823 474-87-3 In Stock
Estrone Sulfate Metabolite CS-EK-00704 481-97-0 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-Methylestrone Impurity CS-T-81956 4011-48-7 Enquire
2-Methylestrone Impurity CS-TB-93458 2626-12-2 Enquire
4-Bromoestrone Impurity CS-T-08456 1630-82-6 In Stock
Estrone 3-3' Dimer Impurity CS-F-00186 Not Available Enquire
Estrone Acetate Impurity CS-P-07821 901-93-9 In Stock
ESTRONE AMPOLA 1000 μG/ML Impurity CS-O-48171 53-16-7 Enquire
Estrone-3-Methyl Ether Impurity CS-O-30580 1624-62-0 In Stock


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
16-Ethylidene-Estrone Intermediate CS-O-52447 113062-96-7 Enquire
Estrone 3-Sulfate Potassium Salt Intermediate CS-T-92373 1240-04-6 In Stock


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Estrone 3-O-beta-D-glucuronide Glucuronide CS-BV-00038 2479-90-5 In Stock