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.
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-Dehydroestrone 2,4,16,16-D4" | Stable Isotopes | CS-BU-00106 | Not Available | Enquire |
| ∆8,9-Dehydro Estrone-d4 3-Sulfate Sodium Salt | Stable Isotopes | CS-T-99314 | Not Available | Enquire |
| 16 α-HYDROXY ESTRONE 13C3 | Stable Isotopes | CS-R-00128 | 1241684-28-5 | Enquire |
| 16α-Hydroxyestrone-[2,3,4-13C3] (Solution) | Stable Isotopes | CS-I-00590 | 1241684-28-5 | Enquire |
| 2-Hydroxy Estrone D4 | Stable Isotopes | CS-T-56002 | 81586-97-2 | Enquire |
| 2-Methoxy-[13C,d3]-estrone | Stable Isotopes | CS-I-00393 | 1217460-84-8 | Enquire |
| 2-Methoxyestrone-1,4,16,16 D4 | Stable Isotopes | CS-O-39550 | Not Available | Enquire |
| 2-Methoxyestrone-1,4,16,16-d4 | Stable Isotopes | CS-C-01027 | 949885-90-9 | Enquire |
| 3-O-Methyl Estrone-d3 | Stable Isotopes | CS-T-58189 | 1093230-99-9 | In Stock |
| 3-O-Methyl Estrone-d5 Hydrazone | Stable Isotopes | CS-T-99479 | Not Available | Enquire |
| 4-Hydroxy Estrone-d4 | Stable Isotopes | CS-T-56003 | 81586-98-3 | Enquire |
| 4-Methoxy Estrone 13C,d3 | Stable Isotopes | CS-T-57536 | 1217437-34-7 | Enquire |
| 4-Methoxyestrone-1,2,16,16-d4 | Stable Isotopes | CS-C-01028 | 58562-33-7(unlabelled) | Enquire |
| Delta(?)-8 | Stable Isotopes | CS-O-10087 | 1219799-27-5 | In Stock |
| Estrone 3-Sulfate-d5 Sodium Salt | Stable Isotopes | CS-T-95261 | Not Available | Enquire |
| Estrone Sulfate D4 | Stable Isotopes | CS-EO-03542 | 735254-54-3 | Enquire |
| Estrone, 3-methyl-[13C,D3] ether | Stable Isotopes | CS-I-00081 | 1261254-60-7 | Enquire |
| Estrone-[2,3,4-13C3] | Stable Isotopes | CS-I-00582 | 1241684-29-6 | Enquire |
| Estrone-2 | Stable Isotopes | CS-O-36898 | 870061-18-0 | In Stock |
| Estrone-2,3,4-13C3 | Stable Isotopes | CS-BX-00271 | 1241684-29-6 | Enquire |
| 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-d2 | Stable Isotopes | CS-T-54272 | 56588-58-0 | In Stock |
| Estrone-d4 | Stable Isotopes | CS-T-54273 | 53866-34-5 | In Stock |
| Estrone-D4 Glucuronide | Stable Isotopes | CS-CX-00707 | 2479-90-5 (Unlabeled) | Enquire |
| Estrone-D4 IN ACETONITRILE 100 μG/ML | Stable Isotopes | CS-O-48173 | 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 | Enquire |
API Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Estrone | API Standards | CS-O-10855 | 53-16-7 | In Stock |
Metabolites
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2-Hydroxyestrone-1,4-Cysteine | Metabolites | CS-O-35496 | Not Available | Enquire |
| 2-Hydroxyestrone-1,4-N-acetylcysteine | Metabolites | CS-O-35500 | Not Available | Enquire |
| 4-Hydroxyestrone-2-Cysteine | Metabolites | CS-O-35494 | Not Available | Enquire |
| 4-Hydroxyestrone-2-N-acetylcysteine | Metabolites | CS-O-35498 | Not Available | Enquire |
| 8,9 Dehydroestrone sulfate sodium | Metabolites | CS-O-10355 | 61612-83-7 | Enquire |
| delta 8,9-Dehydro Estrone | Metabolites | CS-O-07823 | 474-87-3 | In Stock |
| Estrone sulfate | Metabolites | CS-EK-00704 | 481-97-0 | In Stock |
Impurities
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| "2,4,16a-Tribromo Estrone" | Impurities | CS-T-62261 | 79258-15-4 | Enquire |
| "2,4-Dibromo-16a-hydroxy Estrone" | Impurities | CS-T-52519 | 79258-14-3 | Enquire |
| "4,16a-Dibromo Estrone" | Impurities | CS-T-52517 | 81072-41-5 | Enquire |
| 1-Methylestrone | Impurities | CS-T-81956 | 4011-48-7 | Enquire |
| 2,4-Dibromo Estrone | Impurities | CS-T-52516 | 60788-62-7 | Enquire |
| 2-Methoxy Estrone | Impurities | CS-T-32369 | 362-08-3 | Enquire |
| 2-Methylestrone | Impurities | CS-TB-93458 | 2626-12-2 | Enquire |
| 3-Hydroxy-1,3,5(10),9(11)-tetraen-17-one | Impurities | CS-F-00025 | 1089-80-1 | Enquire |
| 3-O-Methyl Estrone Hydrazone | Impurities | CS-T-33803 | 105663-60-3 | Enquire |
| 4-Bromoestrone | Impurities | CS-T-08456 | 1630-82-6 | In Stock |
| 4-Formylestrone | Impurities | CS-T-77603 | 13879-56-6 | Enquire |
| 4-Methoxy Estrone | Impurities | CS-T-31955 | 58562-33-7 | Enquire |
| 6a-Hydroxy Estrone | Impurities | CS-T-55999 | 1476-78-4 | Enquire |
| 6-Dehydroestrone | Impurities | CS-T-73354 | 2208-12-0 | Enquire |
| 6-Keto Estrone | Impurities | CS-T-30320 | 1476-34-2 | Enquire |
| Estrone 17-Ethylene Ketal | Impurities | CS-T-54274 | 900-83-4 | Enquire |
| Estrone 3-3' Dimer | Impurities | CS-F-00186 | Not Available | Enquire |
| Estrone 3-O-Sulfamate | Impurities | CS-T-22198 | 148672-09-7 | Enquire |
| Estrone 3-Valerate | Impurities | CS-T-22203 | 128788-26-1 | Enquire |
| Estrone Acetate | Impurities | CS-P-07821 | 901-93-9 | In Stock |
| Estrone-3-Methyl Ether | Impurities | CS-O-30580 | 1624-62-0 | In Stock |
| Estrone-3-sulphate sodium | Impurities | CS-O-11642 | 438-67-5 | In Stock |
Intermediates
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| "3-O-Benzyl 15,16-Dehydro Estrone Monoethylene Ketal" | Intermediates | CS-T-48835 | 534572-67-3 | Enquire |
| 16a-Hydroxy Estrone | Intermediates | CS-T-55996 | 566-76-7 | Enquire |
| 18a-Methylestrone | Intermediates | CS-T-58194 | 6544-68-9 | Enquire |
| 2-Hydroxy Estrone | Intermediates | CS-T-56001 | 362-06-1 | Enquire |
| 3-O-Benzyl 15,16-Dehydro Estrone | Intermediates | CS-T-05532 | 138743-03-0 | Enquire |
| 3-O-Benzyl 16a-Hydroxy Estrone | Intermediates | CS-T-48889 | 14982-20-8 | Enquire |
| 3-O-Benzyl Estrone | Intermediates | CS-T-05634 | 858-98-0 | Enquire |
| 3-O-Benzyl Estrone Monoethylene Ketal | Intermediates | CS-T-48880 | 162784-26-1 | Enquire |
| 3-O-Methyl Estrone 17-(Ethanediyl Ketal) | Intermediates | CS-T-58190 | 28336-29-0 | Enquire |
| 4-Hydroxy Estrone | Intermediates | CS-T-27297 | 3131-23-5 | Enquire |
| 4-Hydroxy Estrone 1-N3-Adenine | Intermediates | CS-T-27337 | 488841-24-3 | Enquire |
| 4-Hydroxy Estrone 1-N7-Guanine | Intermediates | CS-T-56029 | 178971-92-1 | Enquire |
| 4-Methylestrone | Intermediates | CS-T-80722 | 68969-90-4 | Enquire |
| 6^GHydroxy Estrone | Intermediates | CS-T-56000 | 1229-25-0 | Enquire |
| Estrone 3-Sulfate Potassium Salt | Intermediates | CS-T-92373 | 1240-04-6 | In Stock |
| Estrone Enol Diacetate | Intermediates | CS-T-54197 | 20592-42-1 | Enquire |
Glucuronides
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 16a-Hydroxyestrone 16-β-D-Glucuronide | Glucuronides | CS-T-55997 | 15270-34-5 | Enquire |
| Estrone 3-O-beta-D-glucuronide | Glucuronides | CS-BV-00038 | 2479-90-5 | In Stock |
| Estrone-β-D-Glucuronide Triacetate Methyl Ester | Glucuronides | CS-T-54271 | 27537-72-0 | Enquire |
| Estrone-β-D-Glucuronide Sodium Salt | Glucuronides | CS-O-30509 | 15087-01-1 | In Stock |