Browse controlled substance reference standards and research materials.
| Compound | CAT No. | CAS No. | Category | Action |
|---|---|---|---|---|
| 4-Fluorobutyrfentanyl | CS-EK-01347 | 244195-31-1 | Impurity | |
| 4-Fluoroisobutyryl fentanyl | CS-EH-00177 | 244195-32-2 | Impurity | |
| 4-HO-MPMI-d5 | CS-O-53355 | 2684200-04-0 | Stable Isotopes | |
| 4-Hydroxy Alprazolam (Compd. with methanol) | CS-TB-66313 | 1216921-51-5 | Other | |
| 4-Hydroxy Amphetamine | CS-O-60971 | 103-86-6 | Impurity | |
| 4-Hydroxy Lisdexamfetamine Impurity | CS-O-66413 | - | Impurity | |
| 4-Hydroxy Midazolam | CS-O-06065 | 59468-85-8 | Metabolite | |
| 4-Hydroxy Midazolam-d5 Methanoate | CS-T-102358 | 1276584-44-1 | Stable Isotopes | |
| 4-Hydroxy Norephedrine | CS-O-59568 | 771-91-5 | Metabolite | |
| 4-Hydroxy Phenobarbital-d5 | CS-T-103158 | 111342-31-5 | Stable Isotopes | |
| 4-Hydroxy Testosterone-d3 | CS-T-102895 | 2141-17-5(Unlabelled) | Stable Isotopes | |
| 4-Hydroxy Triazolam b-D-Glucuronide | CS-O-38959 | 76960-93-5 | Glucuronide | |
| 4-Hydroxy-3-methoxy Methamphetamine-d3 Hydrochloride | CS-T-102438 | 1246814-80-1 | Stable Isotopes | |
| 4-Hydroxyalprazolam | CS-EK-01119 | 30896-57-2 | Metabolite | |
| 4-Hydroxyalprazolam 13C6 | CS-EK-00095 | 30896-57-2 unlabeled | Stable Isotopes | |
| 4-Hydroxy-indole-3-acetaldehyde | CS-O-62350 | 1893842-75-5 | Metabolite | |
| 4-Hydroxymidazolam 13C6 | CS-CX-00027 | -- | Stable Isotopes | |
| 4-Hydroxymidazolam 13C6 | CS-EK-02131 | 59468-85-8 unlabeled | Stable Isotopes | |
| 4-hydroxymidazolam glucuronide | CS-ED-01876 | 81256-82-8 | Glucuronide | |
| 4-HydroxyNandrolone | CS-O-43418 | 4721-69-1 | Impurity | |
| 4'-Hydroxy-N-desmethylclobazam | CS-TB-00565 | 70643-23-1 | Metabolite | |
| 4'-Hydroxynordiazepam | CS-T-28243 | 17270-12-1 | Intermediate | |
| 4-hydroxytestosterone | CS-ED-00510 | 2141-17-5 | Intermediate | |
| 4-Hydroxytriazolam | CS-EK-01970 | 65686-11-5 | Metabolite |
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