Usaramine CAS 15503-87-4
| CAS No. | 15503-87-4 |
| Molecular Formula | C18H25NO6 |
| Molecular Weight | 351.39 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 Usaramine.
Usaramine (CAS 15503-87-4), molecular formula C18H25NO6 and molecular weight 351.39 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Usaramine (C18H25NO6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 351.39 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C18H25NO6 |
| Molecular Weight | 351.39 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 1 |
Related Usaramine Standards
Recommended Standards
- Retrorsine (CAS 480-54-6)
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- 2-(4-Fluorophenyl)pent-4-enoic acid (CAS 51230-93-4)
- Methyl 2-((3-bromoisoxazol-5-yl)methoxy)benzoate (CAS 1447953-20-9)
- N1-Boc-3-chloro-1,2-benzenediamine (CAS 954238-81-4)
- 2-(1H-Indol-3-yl)-N-(4-nitrobenzyl)ethanamine (CAS 355815-83-7)
- 1,7-naphthyridin-3-amine (CAS 58680-42-5)
- Dipropyl 3,4,5,6-tetrachlorophthalate (CAS 6928-67-2)
- Moxifloxacin EP Impurity E HCl (CAS 2252446-71-0)
- Copper Peptide ·2 acetate salt (CAS 130120-57-9)
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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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com