Paricalcitol Impurity 1 CAS 95716-68-0
| CAS No. | 95716-68-0 |
| Molecular Formula | C19H32O2 |
| Molecular Weight | 292.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Paricalcitol Impurity 1 (CAS 95716-68-0), molecular formula C19H32O2 and molecular weight 292.46 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Paricalcitol Impurity 1 (C19H32O2) 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C19H32O2 |
| Molecular Weight | 292.46 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
Related Paricalcitol Standards
- Paricalcitol lmpurity 39 (CAS 1314402-74-8)
- Paricalcitol lmpurity 42 (CAS 1186587-53-0)
- Paricalcitol Impurity 19 (CAS 95716-67-9)
- Paricalcitol Impurity 21 (CAS CATO-C4X-138721)
- Paricalcitol Impurity 22 (CAS 1186587-44-9)
- Paricalcitol Impurity 23 (CAS CATO-C4X-138723)
- Paricalcitol Impurity 25 (CAS CATO-C4X-138725)
- Paricalcitol Impurity 24 (CAS CATO-C4X-138724)
Recommended Standards
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- Methyl (9Z,11E)-octadeca-2,9,11-trienoate (CAS 95497-55-5)
- 4-Chloroquinoline 1-oxide hydrochloride (CAS 6627-90-3)
- 2-Formyl-5-(2-oxopiperidin-1-yl)benzonitrile (CAS 1260891-24-4)
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- Itraconazole Impurity 44 (CAS 103661-14-9)
- (1R)-3-iodocyclopentanamine (CAS 2396465-80-6)
- 3-(5-Chloro-2-fluorophenyl)-1-methyl-1h-pyrazol-5-amine (CAS 1152666-84-6)
- 2-(2-Aminoethyl)benzenesulfonamide;hydrochloride (CAS 1089703-61-6)
- Delafloxacin impurity 39 (CAS CATO-C4X-263739)
- Avatrombopag Impurity 54 (CAS 28989-50-6)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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