6-OXO-[1,4]OXAZEPANE-4,5-DICARBOXYLIC ACID 4-TERT-BUTYL ESTER 5-ETHYL ESTER CAS 1330763-23-9
| CAS No. | 1330763-23-9 |
| Molecular Formula | C13H21NO6 |
| Molecular Weight | 287.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-OXO-[1,4]OXAZEPANE-4,5-DICARBOXYLIC ACID 4-TERT-BUTYL ESTER 5-ETHYL ESTER (CAS 1330763-23-9), molecular formula C13H21NO6 and molecular weight 287.31 g/mol, is a CATO reference standard with documented purity and traceability.
6-OXO-[1,4]OXAZEPANE-4,5-DICARBOXYLIC ACID 4-TERT-BUTYL ESTER 5-ETHYL ESTER (C13H21NO6) contains a nitrogen-containing heterocyclic scaffold, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 6-OXO-[1,4]OXAZEPANE-4,5-DICARBOXYLIC ACID 4-TERT-BUTYL ESTER 5-ETHYL ESTER 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 | C13H21NO6 |
| Molecular Weight | 287.31 g/mol |
| Appearance | Off-white to pale 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
Related OXO Standards
- Benzyl 1,2-oxazepane-2-carboxylate (CAS 1217295-83-4)
- 1,4-oxazepane-4-sulfonyl chloride (CAS 1200798-09-9)
- 4-Benzyl-1,4-oxazepane (CAS 19344-52-6)
- 4-Acetyl-1,4-oxazepane-6-carboxylic acid (CAS 1316225-24-7)
- 1,4-Oxazepane-4-sulfonamide (CAS 1251292-93-9)
- 2-phenyl-1,4-oxazepane (CAS 933734-57-7)
- 4-Phenyl-1,4-oxazepane (CAS 54600-40-7)
- 6-Phenyl-1,4-oxazepane (CAS 933743-05-6)
Recommended Standards
- Methyl (2Z)-3-(dimethylamino)-2-(2-fluorobenzenesulfonyl)prop-2-enoate (CAS 1327197-20-5)
- 4-(4-Ethoxyphenyl)-3h,4h,5h,6h,7h-imidazo[4,5-c]pyridine-6-carboxylic acid (CAS 1338440-40-6)
- (S)-5-(Allyloxy)-2-((tert-butoxycarbonyl)amino)-5-oxopentanoic acid (CAS 132286-79-4)
- 3,5-Dimethoxy-N-(4-methoxyphenyl)benzamide (CAS 134029-83-7)
- 2-(3-(Methylamino)azetidin-1-yl)ethanol bis(2,2,2-trifluoroacetate) (CAS 1956328-03-2)
- 4-methoxybenzoylacetonitrile (CAS 898787-09-2)
- 1,2-Dioleoyl-3-linoleoyl-rac-glycerol (CAS 2190-20-7)
- 1-Methyl-3-(2-(methylsulfonyl)propan-2-yl)-1h-pyrazol-5-amine (CAS 1343223-41-5)
- 1-((4-(Tert-butyl)phenoxy)methyl)-1h-pyrazole-3-carbohydrazide (CAS 1003987-81-2)
- 3-(2-Methoxyphenyl)-6-((3-methylbenzyl)thio)pyridazine (CAS 896044-30-7)
- 2-Bromo-N-[4-(1-pyrrolidinylsulfonyl)phenyl]-acetamide (CAS 1138445-71-2)
- Ethyl 5-nitrothiazole-2-carboxylate (CAS 21943-83-9)
- 3-Amino-N-benzylthieno[2,3-b]pyridine-2-carboxamide (CAS 948207-69-0)
- Tirzepatide Impurity 46 (CAS CATO-C4X-324046)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com