O-Isobutyryl Naltrexone (1.0mg/ml in Acetonitrile) CAS 861238-38-2
| CAS No. | 861238-38-2 |
| Molecular Formula | C24H29NO5 |
| Molecular Weight | 411.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
O-Isobutyryl Naltrexone (1.0mg/ml in Acetonitrile) (CAS 861238-38-2) is a high-purity analytical reference standard with the molecular formula C24H29NO5 and a molecular weight of 411.49 g/mol.
The molecular framework of O-Isobutyryl Naltrexone (1.0mg/ml in Acetonitrile) (C24H29NO5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C24H29NO5 |
| Molecular Weight | 411.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related O Standards
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- N-Isobutyryl-3'-O-acetyl-2'-deoxyguanosine (CAS 74925-81-8)
- N2-Isobutyryl-2-O-methylguanosine (CAS 63264-29-9)
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Recommended Standards
- N-Fmoc-N-methyl-O-(3-methylbutyl)-L-Serine (CAS 2255321-12-9)
- Donepezil Impurity 29 (CAS 197010-25-6)
- N-Fmoc-5-((2-methyl-2-propanyl)oxy)-L-norvaline (CAS 2349713-29-5)
- Rosuvastatin Impurity 168 (CAS CATO-C4X-1169168)
- 10-oxa-3,6,16,18,21-pentazatricyclo[15.3.1.0⁴⁹]henicosa-1(20),4(9),5,7,17(21),18-hexaen-2-one (CAS 2227259-16-5)
- 2-(Furan-2-yl)-2-(methylamino)acetonitrile hydrochloride (CAS 24026-94-6)
- (1-(4-Chlorophenyl)-1H-pyrazol-4-yl)(2-hydroxyphenyl)methanone (CAS 61466-47-5)
- 2-(4-Bromophenyl)-1-propylimidazo[2,1-b]quinazolin-5(1H)-one (CAS 62481-23-6)
- 2-Chloro-6-iodoquinazoline (CAS 1388040-50-3)
- 5-Amino-2-chloro-6-methylnicotinic acid (CAS 89793-10-2)
- 2-((2-Chloro-5-fluorophenoxy)methyl)-1,3-dioxolane (CAS 1443304-83-3)
- 2-Hydrazinyl-3-[3-(propan-2-yloxy)propyl]-3,4-dihydroquinazolin-4-one (CAS 852399-73-6)
- 2-Hydrazinyl-4-(1-methyl-1H-pyrazol-4-yl)-6-(trifluoromethyl)pyrimidine (CAS 1004644-02-3)
- Peptide 439 (CAS CATO-CPTD788439)
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