11-Hydroxy-2,3,4,11-tetrahydro-1H-10-oxa-5-azatetraphen-1-one CAS 78831-30-8
| CAS No. | 78831-30-8 |
| Molecular Formula | C16H13NO3 |
| Molecular Weight | 267.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
11-Hydroxy-2,3,4,11-tetrahydro-1H-10-oxa-5-azatetraphen-1-one (CAS 78831-30-8), molecular formula C16H13NO3 and molecular weight 267.28 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 11-Hydroxy-2,3,4,11-tetrahydro-1H-10-oxa-5-azatetraphen-1-one (C16H13NO3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, 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).
As a certified reference material (CRM), 11-Hydroxy-2,3,4,11-tetrahydro-1H-10-oxa-5-azatetraphen-1-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H13NO3 |
| Molecular Weight | 267.28 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 5-(4-Chloro-3-fluorophenyl)indoline (CAS 893736-50-0)
- 6-[(4S)-4,5-Dihydro-4-(phenylmethyl)-2-oxazolyl]-α,α-dimethyl-N-phenyl-2-pyridinemethanamine (CAS 1995866-25-5)
- 1-(8-Bromonaphthalen-1-yl)cyclopropane-1-carbonitrile (CAS 2114654-72-5)
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- tert-Butyl N-[3-bromo-2-(4-methoxyphenyl)propyl]carbamate (CAS 1909336-30-6)
- 5-Ethyl-3-morpholinophenazin-5-ium ethyl sulfate (CAS 40816-86-2)
- D-Lys16-Tirzepatide (CAS CATO-CPTD788918)
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