9-(Diethylamino)-2-hydroxy-5H-benzo[a]phenoxazin-5-one CAS 188712-75-6
| CAS No. | 188712-75-6 |
| Molecular Formula | C20H18N2O3 |
| Molecular Weight | 334.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 9-(Diethylamino)-2-hydroxy-5H-benzo[a]phenoxazin-5-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.
CATO supplies 9-(Diethylamino)-2-hydroxy-5H-benzo[a]phenoxazin-5-one (CAS 188712-75-6), a certified reference material (molecular formula C20H18N2O3, MW 334.37 g/mol) for analytical method development and quality control.
Based on its molecular formula C20H18N2O3, 9-(Diethylamino)-2-hydroxy-5H-benzo[a]phenoxazin-5-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 334.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C20H18N2O3 |
| Molecular Weight | 334.37 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2010 |
| Nitrogen Atoms | 2 |
Related Diethylamino Standards
- 9-(Diethylamino)-1-hydroxy-5H-benzo[a]phenoxazin-5-one (CAS 188712-74-5)
- 9-(Diethylamino)-3-hydroxy-5H-benzo[a]phenoxazin-5-one (CAS 93397-90-1)
- 2-(Diethylamino)ethyl 1-(4-nitrophenyl)cyclopentane-1-carboxylate (CAS 135569-16-3)
- N1-(2-(Diethylamino)ethyl)-N2-(6-methylbenzo[d]thiazol-2-yl)oxalamide (CAS 104388-98-9)
- 4-Benzyl-2-(2-(diethylamino)ethyl)isoquinolin-1(2H)-one (CAS 88561-21-1)
- 2-((5-(Diethylamino)-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl)(hexyl)amino)ethanol (CAS 100557-06-0)
- 7-(Diethylamino)-2-phenylchromeno[2,3-c]pyrazol-3(2H)-one (CAS 113943-13-8)
- Methyl 4-(diethylamino)-3-iodobenzoate (CAS 1131614-37-3)
Recommended Standards
- 2-(Methacryloyloxy)ethyl anthracene-9-carboxylate (CAS 189390-61-2)
- 5-((6-Hydroxy-2,3-dihydrobenzofuran-5-yl)methyl)-6-methyl-2-phenylpyrimidin-4(1H)-one (CAS 18006-89-8)
- 1,3-Bis(4-formylphenylethynyl)benzene (CAS 192188-61-7)
- 2,7-Di(pyridin-4-yl)-9H-fluoren-9-one (CAS 1695519-85-7)
- 1-(5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiazol-2-yl)piperidin-2-one (CAS 1350755-62-2)
- 4-(4-(2-Fluorophenyl)piperazin-1-yl)-N,N-dimethyl-6-(trifluoromethyl)pyrimidin-2-amine (CAS 339105-20-3)
- (S)-4-Bromo-1-(2,2-difluorocyclopropyl)-5-methyl-1H-pyrazole (CAS 2641062-84-0)
- 3,5-Dimethyl-N-(pyridin-4-ylmethyl)aniline (CAS 331970-83-3)
- 4-Cyclopropoxy-1-iodo-2-(trifluoromethyl)benzene (CAS 1243444-95-2)
- 2-(2,5-difluorophenyl)-5H,6H,7H,8H-imidazo[1,2-a]pyridin-6-amine (CAS 1499326-55-4)
- Rac-(1s,4s)-4-({[(9h-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexane-1-carboxylic acid, cis (CAS 147900-45-6)
- N-(4-Hydroxybenzyl)-3,4,5-trimethoxybenzamide (CAS 90430-13-0)
- Sodium 2-methylpropane-1-sulfinate (CAS 39170-40-6)
- Semaglutide Impurity 191 (CAS CATO-C4X-2226191)
Why CATO?
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