2-Hydroxy-3-O-methylnaltrexone CAS 67829-18-9
| CAS No. | 67829-18-9 |
| Molecular Formula | C21H25NO5 |
| Molecular Weight | 371.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 2-Hydroxy-3-O-methylnaltrexone is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 371.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
2-Hydroxy-3-O-methylnaltrexone (CAS 67829-18-9) is a high-purity analytical reference standard with the molecular formula C21H25NO5 and a molecular weight of 371.43 g/mol.
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 manufactures 2-Hydroxy-3-O-methylnaltrexone 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 | C21H25NO5 |
| Molecular Weight | 371.43 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 2-Amino-1-(4-(tert-butyl)phenoxy)anthracene-9,10-dione (CAS 68256-56-4)
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- 2,4,6-Trichloro-N-(2,4-dichlorophenyl)pyrimidine-5-carboxamide (CAS 87847-96-9)
- 3-(4-(Benzyloxy)phenyl)-2-((tert-butoxycarbonyl)amino)propanoic acid (CAS 247088-45-5)
- 1-(2-Methoxyphenyl)-4-oxocyclohexanecarboxylic Acid (CAS 1385694-48-3)
- [1,2,5]Oxadiazolo[3,4-d]pyrimidin-7(3H)-one (CAS 17376-66-8)
- 2-Thiopheneboronic Acid Pinacol Ester (CAS 193978-23-3)
- 2-[cycloheptyl(methyl)amino]-N-methylacetamide (CAS 1252443-78-9)
- 1-(4-Chloro-6-methylpyrimidin-2-yl)azepane (CAS 1023814-66-5)
- (S)-(6,6-Dimethyl-1,4-dioxan-2-yl)methanol (CAS 1628175-34-7)
- 2-{[(tert-butoxy)carbonyl]amino}-4-hydroxypyridine-3-carboxylic acid (CAS 2089277-08-5)
- Methyl 5-(4-methoxyphenyl)-3-oxopent-4-enoate (CAS 92362-85-1)
- 3-(4-Bromophenyl)-N,N-dimethylacrylamide (CAS 252562-28-0)
- Tau Peptide (245-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 1428134-39-7)
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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