Norethindrone 6-alpha-Hydroxy Impurity CAS 438244-33-8
| CAS No. | 438244-33-8 |
| Molecular Formula | C20H26O3 |
| Molecular Weight | 314.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Norethindrone 6-alpha-Hydroxy Impurity.
Norethindrone 6-alpha-Hydroxy Impurity (CAS 438244-33-8), molecular formula C20H26O3 and molecular weight 314.42 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Norethindrone 6-alpha-Hydroxy Impurity (C20H26O3) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Norethindrone 6-alpha-Hydroxy Impurity 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.
Physical & Chemical Properties
| Molecular Formula | C20H26O3 |
| Molecular Weight | 314.42 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Related Norethindrone Standards
- 6-Oxo Norethindrone (CAS 67696-78-0)
- Norethindrone-D6 (CAS CATO-CCAD301120)
- Norethindrone Impurity 5 (CAS 16392-60-2)
- Norethindrone Impurity 6 (CAS 6424-05-1)
- Norethindrone Impurity 8 (CAS 25796-09-2)
- Norethindrone (CAS 68-22-4)
- Norethindrone Acetate (CAS 38673-38-0)
- Norethindrone Impurity 23 (6-beta-Hydroxy-19-Norandrostenedione) (CAS 5949-49-5)
Recommended Standards
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- Tomentin (CAS 28449-62-9)
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- 5-Bromo-N-((2-methoxypyridin-3-yl)methyl)thiophene-3-carboxamide (CAS 1184476-09-2)
- Isoproturon-d3 (N-methyl-d3) (CAS 352438-80-3)
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- 2-(4-(4-Fluorobenzoyl)phenyl)-2-phenylacetonitrile (CAS 338791-81-4)
- Calcineurin Autoinhibitory Peptide (CAS 148067-21-4)
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