Progesterone Impurity 43 CAS CATO-C4X-150243
| CAS No. | CATO-C4X-150243 |
| Molecular Formula | C22H32O2 |
| Molecular Weight | 328.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Progesterone Impurity 43 (CAS CATO-C4X-150243) is a certified pharmaceutical impurity reference standard with the molecular formula C22H32O2 and a molecular weight of 328.49 g/mol.
Progesterone Impurity 43 (C22H32O2) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Progesterone Impurity 43 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C22H32O2 |
| Molecular Weight | 328.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Progesterone Standards
- (20R)-Progesterone EP Impurity I (CAS 66289-21-2)
- Progesterone Impurity N5 (CAS 35525-27-0)
- Progesterone Impurity N1(Mixture of Diastereomers) (CAS 71658-22-5)
- Progesterone EP Impurity I (S-isomer) (CAS 3986-89-8)
- Progesterone EP Impurity I (CAS 24254-01-1)
- Progesterone Impurity 45 (CAS CATO-C4X-150245)
- Progesterone Impurity 51 (CAS 103858-15-7)
- Progesterone Impurity 53 (CAS 903-03-7)
Recommended Standards
- Spironolactone Impurity 10 (CAS 53866-23-2)
- (9-cis,13-cis)-Retinoic Acid Ethyl Ester 86708-68-1 (CAS 86708-68-1)
- Progesterone Impurity 59 (CAS CATO-C4X-150259)
- CAS 749266-38-4 (CAS 749266-38-4)
- Olmesartan impurity 99 (CAS 1427168-36-2)
- Ritlecitinib impurity 4 (CAS 1792181-97-5)
- Epinephrine Impurity 109 (CAS CATO-C4X-1849109)
- 6-Methoxy-7H-purine-8-carbaldehyde (CAS 914208-11-0)
- Chloroethane-2-d (CAS 23072-56-2)
- 8-Thia-4,6,11-triazatricyclo[7.4.0.0,2,7]trideca-1(9),2,4,6-tetraen-3-amine dihydrochloride (CAS 2126160-51-6)
- (5-Bromo-3-fluoropyridin-2-yl)methyl methanesulfonate (CAS 1293407-74-5)
- ethyl 6-bromo-5-hydroxy-1-methyl-2-(2-oxoethyl)-1H-indole-3-carboxylate (CAS 1704066-49-8)
- 821-10-3 2-Butyne, 1,4-dichloro- 1,4-Dichlorobut-2-yne 4-01-00-00973 (Beilstein Handbook Reference) AI3-26930 BRN 0635740 1,4-Dichlorobutyne 1,4-Dichloro-2-butyne EINECS 212-474-8 NSC 30603 (CAS 821-10-3)
- FMRF Amide Related Peptide. (CAS 149471-12-5)
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