7-Methyl-4H-[1,2,5]oxadiazolo[3,4-b][1,4]diazepin-5(6H)-one CAS 300588-18-5
| CAS No. | 300588-18-5 |
| Molecular Formula | C6H6N4O2 |
| Molecular Weight | 166.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 166.14 g/mol gives 7-Methyl-4H-[1,2,5]oxadiazolo[3,4-b][1,4]diazepin-5(6H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
7-Methyl-4H-[1,2,5]oxadiazolo[3,4-b][1,4]diazepin-5(6H)-one (CAS 300588-18-5), molecular formula C6H6N4O2 and molecular weight 166.14 g/mol, is a CATO reference standard with documented purity and traceability.
7-Methyl-4H-[1,2,5]oxadiazolo[3,4-b][1,4]diazepin-5(6H)-one (C6H6N4O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C6H6N4O2 |
| Molecular Weight | 166.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
Recommended Standards
- 7-Methoxy-3H-[1,2,3]triazolo[4,5-d]pyrimidin-5-amine (CAS 6298-54-0)
- 8-Aminoguanine (CAS 28128-41-8)
- 7-Amino-1H-imidazo[1,2-b]pyrazole-6-carboxylic acid (CAS 227611-58-7)
- Ethyl 3-cyano-1H-1,2,4-triazole-5-carboxylate (CAS 853907-83-2)
- n-Cyclopropyl-N-methyl-6-azaspiro[2.5]octane-1-carboxamide (CAS 1340567-79-4)
- 2-((4-Methoxyphenyl)carbamoyl)thiophen-3-yl dimethylsulfamate (CAS 338794-69-7)
- Methyl 3-(4-Piperidyl)propionate (CAS 71879-50-0)
- Methyl 3-oxothiomorpholine-2-carboxylate (CAS 1795304-62-9)
- 3-Fluoro-4-(morpholin-2-yl)aniline (CAS 1379192-95-6)
- methyl 2-(methylamino)-2-(1-naphthyl)propanoate (CAS 1178206-76-2)
- 1-((1R,2R)-2-(Dimethylamino)cyclohexyl)-3-((1R,2R)-2-hydroxy-1,2-diphenylethyl)thiourea (CAS 1046493-33-7)
- Bathocuproin sulfonate disodium salt (CAS 98645-85-3)
- 3,4-Difluoro-2-thiomorpholinomethyl benzophenone (CAS 898782-44-0)
- Semaglutide impurity 64 (CAS CATO-C4X-222664)
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