Norethindrone Acetate Impurity 13 CAS 40228-41-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 40228-41-9 |
| Molecular Formula | C22H28Br2O4 |
| Molecular Weight | 516.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Norethindrone Acetate Impurity 13 (CAS 40228-41-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C22H28Br2O4. Molecular weight: 516.26 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C22H28Br2O4 |
| Molecular Weight | 516.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Br-containing |
Related Norethindrone Standards
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Recommended Standards
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- 9,10-Bis(4-(bromomethyl)phenyl)anthracene (CAS 941703-52-2)
- 2,7-Dibromo-5,10-diphenyl-5,10-dihydroindolo[3,2-b]indole (CAS 1919062-54-6)
- 2-(Cyclohexylthio)-5-nitrobenzaldehyde (CAS 175278-46-3)
- 1-(Tetrahydrothiophen-3-yl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1707594-44-2)
- 2-(2-(Ethyl(isobutyl)amino)ethoxy)ethan-1-ol (CAS 1251114-07-4)
- 3,3-Dimethylhexahydro-1H-pyrrolo[1,2-c]imidazol-1-one (CAS 156171-63-0)
- (4-Aminopiperidin-1-yl)(4-chlorophenyl)methanone (CAS 676559-87-8)
- 3-(4-Chlorophenyl)-1H-indazol-5-amine (CAS 1181335-70-5)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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