Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Testosterone, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Testosterone 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 Testosterone-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 Testosterone-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.
Testosterone Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 11-Hydroxytestosterone-[9,11,12,12-D4] | Stable Isotopes | CS-T-103041 | 2687960-99-0 | Enquire |
| 11-Ketotestosterone-[16,16,17-d3] | Stable Isotopes | CS-O-54677 | 2479914-03-7 | Enquire |
| 17-Alpha-Methyl Testosterone-d3 | Stable Isotopes | CS-T-93470 | 96425-03-5 | In Stock |
| 17b-Methyl epi-Testosterone-d5 | Stable Isotopes | CS-T-103212 | 2607-14-9(Unlabelled) | Enquire |
| 17-epi-Testosterone-d3 | Stable Isotopes | CS-T-61664 | 171199-96-5 | Enquire |
| 5-a-DIHYDROTESTOSTERONE 13C3 | Stable Isotopes | CS-R-00139 | 1257527-54-0 | Enquire |
| 5a-Dihydrotestosterone Tridecanoate-d3 | Stable Isotopes | CS-T-103164 | 488836-66-4(Unlabelled) | Enquire |
| 5a-Dihydrotestosterone-16,16,17-d3 Undecanoate | Stable Isotopes | CS-B-00403 | Not Available | Enquire |
| 5-Alpha-Dihydrotestosterone (2,2,4,4-D4, 98%) 95% Chemical P... | Stable Isotopes | CS-TB-26908 | Not Available | Enquire |
| 5α DIHYDROTESTOSTERONE-d3 SOLUTION AMPOLA 100 μG/ML | Stable Isotopes | CS-O-48175 | 79037-34-6 | Enquire |
| 6-β-Hydroxy Testosterone-d3 | Stable Isotopes | CS-T-57078 | 62-99-7 (Unlabeled) | Enquire |
| 6-Beta-Hydroxytestosterone-d7 | Stable Isotopes | CS-O-13599 | 62-99-7 (Unlabeled) | In Stock |
| 6-B-HYDROXY TESTOSTERONE-D4 | Stable Isotopes | CS-TB-70992 | 638163-38-9 | Enquire |
| 6β-Hydroxytestosterone-d3 | Stable Isotopes | CS-I-00473 | Not Available | Enquire |
| 6β-Hydroxytestosterone-d3 (Solution) | Stable Isotopes | CS-I-00593 | Not Available | Enquire |
| Androstenediol Sulfate---d3 | Stable Isotopes | CS-O-58037 | 73609-45-7 (Freebase) | Enquire |
| DIHYDRO TESTOSTERONE D3 | Stable Isotopes | CS-R-00153 | 79037-34-6 | Enquire |
| Dihydrotestosterone-[13C3] | Stable Isotopes | CS-I-00578 | 1257527-54-0 | Enquire |
| Epitestosterone Sulfate-d3 Triethylamine Salt | Stable Isotopes | CS-T-53960 | 182296-44-2 | Enquire |
| Epitestosterone-D3 Glucuronide | Stable Isotopes | CS-T-54098 | 1101127-63-2 | Enquire |
| Nortestosterone-D3 | Stable Isotopes | CS-ZH-20046 | 120813-22-1 | Enquire |
| Testosterone [1,2,6,7-3H4] | Stable Isotopes | CS-O-10257 | 67308-98-9 | Enquire |
| Testosterone 13C3 | Stable Isotopes | CS-BE-00017 | 327048-83-9 | Enquire |
| Testosterone Cypionate-d3 | Stable Isotopes | CS-T-93296 | 876054-56-7 | Enquire |
| Testosterone D3 Propionate | Stable Isotopes | CS-T-61665 | 876054-54-5 | Enquire |
| Testosterone Enanthate-d3 | Stable Isotopes | CS-T-102608 | 315-37-7(Unlabelled) | Enquire |
| Testosterone Sulfate-d3 Triethylamine Salt | Stable Isotopes | CS-T-103213 | Not Available | Enquire |
| Testosterone Undecanoate-d21 | Stable Isotopes | CS-ED-02451 | Not Available | In Stock |
| Testosterone-[13C3] | Stable Isotopes | CS-I-00600 | 327048-83-9 | Enquire |
| Testosterone-[16,16,17-d3] Glucuronide | Stable Isotopes | CS-I-00482 | 384380-27-2 | Enquire |
| Testosterone-[16,16,17-d3] Glucuronide (Solution) | Stable Isotopes | CS-I-00601 | 384380-27-2 | Enquire |
| Testosterone-[d3] (Solution) | Stable Isotopes | CS-I-00602 | 77546-39-5 | Enquire |
| Testosterone-[d3] Cypionate (Solution) | Stable Isotopes | CS-I-00625 | 876054-56-7 | Enquire |
| Testosterone-[d3] Isocaproate (Solution) | Stable Isotopes | CS-I-00628 | 15262-86-9(Unlabeled) | Enquire |
| Testosterone-[d3] Propionate (Solution) | Stable Isotopes | CS-I-00630 | 876054-54-5 | Enquire |
| Testosterone-[d3] Undecanoate (Solution) | Stable Isotopes | CS-I-00631 | Not Available | Enquire |
| Testosterone-[d5] (Solution) | Stable Isotopes | CS-I-00603 | 21002-80-2 | Enquire |
| Testosterone-13C | Stable Isotopes | CS-T-103234 | 58-22-0(Unlabelled) | Enquire |
| Testosterone-16,16,17-D3 17-Phenylpropionate | Stable Isotopes | CS-T-61667 | 876054-55-6 | Enquire |
| Testosterone-191919-d3 | Stable Isotopes | CS-O-40239 | 69660-28-2 | Enquire |
| Testosterone-2,2,4,6,6-D5 | Stable Isotopes | CS-T-94190 | 21002-80-2 | Enquire |
| Testosterone-d3 | Stable Isotopes | CS-T-57057 | 77546-39-5 | In Stock |
| Testosterone-d3 17ß-Hemisuccinate | Stable Isotopes | CS-T-87335 | 521-15-3 | Enquire |
| Testosterone-d4 | Stable Isotopes | CS-O-36591 | 1219035-47-8 | Enquire |
API Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Androstanolone | API Standards | CS-O-02388 | 521-18-6 | In Stock |
| Testosterone | API Standards | CS-O-02507 | 58-22-0 | In Stock |
| Testosterone cypionate | API Standards | CS-O-30784 | 58-20-8 | In Stock |
| Testosterone Propionate | API Standards | CS-O-30780 | 57-85-2 | In Stock |
| Testosterone Undecanoate | API Standards | CS-O-02525 | 5949-44-0 | In Stock |
Metabolites
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 17a-Methyl Testosterone | Metabolites | CS-T-57116 | 58-18-4 | In Stock |
| 5a-Dihydrotestosterone Undecanoate | Metabolites | CS-B-00009 | 6804-12-2 | Enquire |
| 6β-hydroxy Testosterone | Metabolites | CS-EK-01066 | 62-99-7 | In Stock |
| Testosterone Benzoate | Metabolites | CS-O-30487 | 2088-71-3 | In Stock |
| Testosterone undecylenate | Metabolites | CS-O-36186 | 29430-26-0 | Enquire |
Impurities
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 11a-Hydroxytestosterone | Impurities | CS-BX-00216 | Not Available | Enquire |
| 11α-hydroxy Testosterone | Impurities | CS-O-44271 | 3066-12-4 | Enquire |
| 17a-Cyanomethyl-19-nortestosterone | Impurities | CS-T-51373 | 67473-36-3 | In Stock |
| 17-alpha-Hydroxyandrosta-4,8-dien-3-one | Impurities | CS-EO-01582 | 2608628-54-0 | Enquire |
| 17-epi-Testosterone Enanthate | Impurities | CS-T-61611 | 219296-36-3 | Enquire |
| 21-Chlorotestosterone Cypionate | Impurities | CS-EO-00052 | Not Available | Enquire |
| 2α-Hydroxy Testosterone | Impurities | CS-T-93452 | 4075-14-3 | Enquire |
| 4,17a-Dimethyl-2-hydroxymethylene Testosterone | Impurities | CS-T-53597 | 38539-99-0 | Enquire |
| 4,17a-Dimethyltestosterone | Impurities | CS-T-53600 | 28626-76-8 | Enquire |
| 4,5-Epoxy-19-nortestosterone | Impurities | CS-T-54335 | 52153-24-9 | Enquire |
| 4-Ketotestosterone | Impurities | CS-O-47723 | Not Available | Enquire |
| 5α-dihydro-11-keto Testosterone | Impurities | CS-T-95890 | 32694-37-4 | Enquire |
| 6-Alpha-Hydroperoxy Testosterone Undecanoate | Impurities | CS-O-44634 | Not Available | Enquire |
| 6-Alpha-hydroxy Testosterone Undecanoate | Impurities | CS-O-44632 | Not Available | Enquire |
| 6-Beta-Hydroperoxy Testosterone Undecanoate | Impurities | CS-O-44635 | Not Available | Enquire |
| 6-Beta-hydroxy Testosterone Undecanoate | Impurities | CS-O-44633 | Not Available | Enquire |
| 6-ene Testosterone cypionate | Impurities | CS-O-45032 | Not Available | Enquire |
| 6-Hydroxy Testosterone | Impurities | CS-O-47722 | 34442-08-5 | Enquire |
| 6-Oxotestosterone | Impurities | CS-AB-00071 | 570-94-5 | Enquire |
| 7-Hydroxy Testosterone | Impurities | CS-O-48992 | 1030936-56-1 | Enquire |
| Androsta-1,4,6-triene-3,17-dione | Impurities | CS-O-11368 | 633-35-2 | In Stock |
| Androstenediol Sulfate | Impurities | CS-O-58036 | 60825-60-7 | Enquire |
| Delta-5,6-Testosterone Cypionate | Impurities | CS-O-53415 | Not Available | Enquire |
| Desoxymethyl Testosterone | Impurities | CS-V-00005 | 3275-64-7 | Enquire |
| DIHYDROTESTOSTERONE AMPOLA 1000 μG/ML | Impurities | CS-O-48170 | 521-18-6 | Enquire |
| Dihydrotestosterone Cypionate | Impurities | CS-O-53416 | Not Available | Enquire |
| Dihydrotestosterone Tridecanoate | Impurities | CS-T-53246 | 488836-66-4 | Enquire |
| Epitestosterone-1,16,16,17-d4 | Impurities | CS-B-00396 | Not Available | Enquire |
| Epitestosterone-1,16,16,17-d4 Glucuronide | Impurities | CS-B-00395 | Not Available | Enquire |
| Prenortestosterone | Impurities | CS-T-60759 | 1089-78-7 | Enquire |
| Testosterone 17-Valerate | Impurities | CS-O-39436 | 3129-43-9 | In Stock |
| Testosterone 17-Isocaprate | Impurities | CS-T-61610 | 57361-80-5 | Enquire |
| Testosterone caproate | Impurities | CS-O-43769 | 10312-45-5 | Enquire |
| Testosterone cyclohexylpropionate | Impurities | CS-O-47839 | 2034-94-8 | Enquire |
| Testosterone Cypionate methyl enol ether | Impurities | CS-EO-01146 | Not Available | Enquire |
| Testosterone Decanoate | Impurities | CS-O-30806 | 5721-91-5 | In Stock |
| Testosterone Decanoate EP Impurity B | Impurities | CS-EO-03083 | 29430-22-6 | Enquire |
| Testosterone Decanoate EP Impurity C | Impurities | CS-EO-03084 | 57525-67-4 | Enquire |
| Testosterone Decanoate EP Impurity G | Impurities | CS-EO-03085 | 219296-37-4 | Enquire |
| Testosterone Decanoate Impurity F | Impurities | CS-T-94252 | 59232-78-9 | In Stock |
| Testosterone Dipropionate | Impurities | CS-B-00389 | 42257-18-1 | Enquire |
| Testosterone enantate benzilic acid hydrazone | Impurities | CS-ED-41730 | 18625-33-7 | Enquire |
| Testosterone Enantate EP Impurity H | Impurities | CS-EO-00505 | 162890-98-4 | Enquire |
| Testosterone Enanthate | Impurities | CS-O-05333 | 315-37-7 | In Stock |
| Testosterone EP Impurity B | Impurities | CS-AB-00081 | 972-46-3 | Enquire |
| Testosterone EP Impurity C | Impurities | CS-T-61663 | 481-30-1 | Enquire |
| Testosterone EP Impurity D | Impurities | CS-Q-00323 | 1156-92-9 | Enquire |
| Testosterone EP Impurity E | Impurities | CS-O-15309 | 1045-69-8 | In Stock |
| Testosterone EP Impurity I | Impurities | CS-O-15311 | 2484-30-2 | Enquire |
| Testosterone EP Impurity J | Impurities | CS-O-15310 | 57144-06-6 | Enquire |
| Testosterone EP Impurity M | Impurities | CS-EO-01676 | 133177-83-0 | Enquire |
| Testosterone furoate | Impurities | CS-ED-41731 | 60895-85-4 | Enquire |
| Testosterone hexyloxyphenylpropionate | Impurities | CS-ED-41732 | 4838-37-3 | Enquire |
| Testosterone Impurity 14 | Impurities | CS-EO-02021 | 25846-32-6 | Enquire |
| Testosterone Impurity K | Impurities | CS-O-34689 | Not Available | In Stock |
| Testosterone Isocaproate | Impurities | CS-O-02418 | 15262-86-9 | In Stock |
| Testosterone Isocaproate EP Impurity G | Impurities | CS-EO-03082 | Not Available | Enquire |
| Testosterone ketolaurate | Impurities | CS-ED-41733 | 5874-98-6 | Enquire |
| Testosterone Methanesulfonate | Impurities | CS-T-61612 | 23067-29-0 | Enquire |
| Testosterone Palmitate | Impurities | CS-T-61614 | 991-20-8 | Enquire |
| Testosterone Phenyl propionate | Impurities | CS-O-02417 | 1255-49-8 | In Stock |
| TESTOSTERONE PHENYLACETATE | Impurities | CS-ED-41735 | 5704-03-0 | Enquire |
| Testosterone phosphate | Impurities | CS-O-47846 | 1242-14-4 | Enquire |
| Testosterone sulfate | Impurities | CS-ED-01770 | 651-45-6 | Enquire |
| Testosterone Tridecanoate | Impurities | CS-T-61668 | 488836-58-4 | Enquire |
| Testosterone Undecanoate D3 | Impurities | CS-T-96076 | 5949-44-0 (Unlabelled) | Enquire |
| Δ6-Testosterone Enanthate | Impurities | CS-K-00250 | Not Available | Enquire |
EP Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Methyltestosterone system suitability (Y0000861) | EP Standards | CS-EG-00698 | 58-18-4 | Enquire |
| Testosterone (T0100000) | EP Standards | CS-EG-01878 | 58-22-0 | Enquire |
| Testosterone propionate (T0300000) | EP Standards | CS-EG-01873 | 57-85-2 | Enquire |
| Testosterone System suitability (Y0000343) | EP Standards | CS-EG-00699 | 58-22-0 | Enquire |
Intermediates
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 11-ß-Hydroxytestosterone | Intermediates | CS-T-56493 | 1816-85-9 | In Stock |
| 15-β-Hydroxytestosterone | Intermediates | CS-T-56489 | 39605-73-7 | Enquire |
| 17a-Methyl-4-[(phenylthio)methyl]testosterone | Intermediates | CS-T-58456 | 71507-77-2 | Enquire |
| 17ß-(Trimethylsiloxy)testosterone | Intermediates | CS-T-87568 | 5055-42-5 | Enquire |
| 19-Aldotestosterone | Intermediates | CS-T-47500 | 4075-13-2 | Enquire |
| 19-Hydroxy Testosterone | Intermediates | CS-T-56490 | 2126-37-6 | Enquire |
| 4-hydroxytestosterone | Intermediates | CS-ED-00510 | 2141-17-5 | Enquire |
| 6-Methylenetestosterone | Intermediates | CS-T-81093 | 3347-73-7 | Enquire |
| 7a-Hydroxytestosterone | Intermediates | CS-T-56491 | 62-83-9 | Enquire |
| 9(11)-Dehydrotestosterone Enanthate | Intermediates | CS-T-51803 | 119698-27-0 | Enquire |
| 9-Dehydrotestosterone | Intermediates | CS-T-51802 | 2398-99-4 | Enquire |
Glucuronides
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 11-Keto Testosterone | Glucuronides | CS-TB-77873 | 564-35-2 | Enquire |
| 7a-Methyltestosterone Glucuronide | Glucuronides | CS-T-58650 | 120152-01-4 | Enquire |
| Dihydrotestosterone glucuronide | Glucuronides | CS-O-58355 | 42037-24-1 | Enquire |
| Epitestosterone Glucuronide | Glucuronides | CS-T-53961 | 16996-33-1 | Enquire |
| Testosterone Beta-D-Glucuronide Monosodium | Glucuronides | CS-TB-79257 | 4145-59-9 | Enquire |
| Testosterone Glucuronide | Glucuronides | CS-I-00108 | 1180-25-2 | Enquire |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 4-Chlorodehydromethyltestosterone | Fine Chemicals | CS-T-92625 | 2446-23-3 | In Stock |
| 9,10-Dehydro-19-nortestosterone | Fine Chemicals | CS-T-51786 | 6218-29-7 | In Stock |
| Delta 9,11 Testosterone Cypionate | Fine Chemicals | CS-TB-13532 | 122651-11-0 | In Stock |
| Heptanoic Acid | Fine Chemicals | CS-T-29015 | 111-14-8 | In Stock |
Building Blocks
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2β-Hydroxy Testosterone | Building Blocks | CS-TB-70988 | 10390-14-4 | Enquire |