Progesterone Impurity 98 CAS 3946-26-7
| CAS No. | 3946-26-7 |
| Molecular Formula | C22H30O2 |
| Molecular Weight | 326.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Progesterone Impurity 98 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies Progesterone Impurity 98 (CAS 3946-26-7), a pharmacopoeial impurity reference standard (molecular formula C22H30O2, MW 326.47 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, a hydroxyl group, an ether linkage, Progesterone Impurity 98 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 326.47 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C22H30O2 |
| Molecular Weight | 326.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Progesterone Standards
- Progesterone Bisnoraldehyde Impurity (CAS 81201-82-3)
- Progesterone EP Impurity L (CAS 2257421-80-8)
- Progesterone Impurity 44 (CAS CATO-C4X-150244)
- Progesterone Impurity 48 (CAS 115387-31-0)
- Progesterone Impurity 49 (CAS 96790-16-8)
- Progesterone Impurity 58 (CAS 2919563-38-3)
- Progesterone Impurity 61 (CAS CATO-C4X-150261)
- Progesterone Impurity 79 (CAS CATO-C4X-150279)
Recommended Standards
- Levonorgestrel EP Impurity S (CAS 176254-10-7)
- Levonorgestrel EP Impurity T (CAS 14507-51-8)
- Norethisterone EP Impurity F (CAS 96487-85-3)
- Oseltamivir Impurity 185 (CAS CATO-C4X-1720185)
- Centanafadine Impurity 2 (CAS 923982-79-0)
- Topicamide lmpurity 9 (CAS CATO-C4X-21509)
- Azacitidine Impurity 9 (CAS 105331-00-8)
- 4-Chloro-1-((1-methyl-1H-pyrazol-4-yl)methyl)-3-nitro-1H-pyrazole (CAS 1005643-57-1)
- 1-[(ethylcarbamoyl)amino]cyclohexane-1-carboxylic acid (CAS 953752-69-7)
- (R)-5-CF3-Pyox-iPr (CAS 2010973-00-7)
- 1-(2,5-Difluorophenyl)propan-1-amine hydrochloride (CAS 1333577-52-8)
- 1-(But-3-yn-1-yl)-3-methylazetidin-3-ol (CAS 1493615-26-1)
- 3-(2-Bromo-5-chlorophenyl)-3-hydroxypropanenitrile (CAS 1541714-88-8)
- Semaglutide Impurity 184 (CAS CATO-C4X-2226184)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com