Norethindrone Acetate EP Impurity I CAS 50717-99-2
| CAS No. | 50717-99-2 |
| Molecular Formula | C24H32O3 |
| Molecular Weight | 368.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies Norethindrone Acetate EP Impurity I (CAS 50717-99-2), a certified reference material (molecular formula C24H32O3, MW 368.51 g/mol) for analytical method development and quality control.
Based on its molecular formula C24H32O3, Norethindrone Acetate EP Impurity I contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 368.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C24H32O3 |
| Molecular Weight | 368.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
Related Norethindrone Standards
- Norethindrone Sulfate Sodium Salt (CAS 19778-24-6)
- Norethindrone Acetate 6-alpha-Hydroxy Impurity (CAS 6856-28-6)
- Norethindrone Diacetate (CAS 2205-78-9)
- Norethindrone Acetate-2,2,4,6,6,10-d6 (Major) (CAS CATO-CCAD301458)
- Norethindrone Acetate (CAS 38673-38-0)
- Norethindrone Impurity 11 (CAS CATO-C4X-171311)
- Norethindrone Enanthate (CAS 3836-23-5)
- Norethindrone 6-alpha-Hydroxy Impurity (CAS 438244-33-8)
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- 2-(Aminomethyl)-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-methanol (CAS 1803994-91-3)
- Clotrimazole Impurity 20 (CAS 3005-50-3)
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- Magnesium octanoate dihydrate (CAS 3386-57-0)
- N,N-Dimethyl-4-[(4-methylphenyl)sulfanyl]-6-(trifluoromethyl)pyrimidin-2-amine (CAS 338792-53-3)
- (2E)-1-(4-Methoxyphenyl)-3-[4-(propan-2-yl)phenyl]prop-2-en-1-one (CAS 1071613-46-1)
- 2,3-Di-tert-butoxy-5-cyclopropoxypyridine (CAS 1243453-67-9)
- 5-((3-(Trifluoromethyl)phenoxy)methyl)furan-2-carbohydrazide (CAS 832740-62-2)
- Pseudopalmatine (CAS 19716-66-6)
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