4,4-dioxo-1,4-oxathiepan-6-one CAS 319909-11-0
| CAS No. | 319909-11-0 |
| Molecular Formula | C5H8O4S |
| Molecular Weight | 164.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4,4-dioxo-1,4-oxathiepan-6-one (CAS 319909-11-0), molecular formula C5H8O4S and molecular weight 164.18 g/mol, is a CATO reference standard with documented purity and traceability.
4,4-dioxo-1,4-oxathiepan-6-one (C5H8O4S) contains a carbohydrate-derived structure, a sulfone group. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
As a certified reference material (CRM), 4,4-dioxo-1,4-oxathiepan-6-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 | C5H8O4S |
| Molecular Weight | 164.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2025 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4,4-dimethyl-1,2$l^{6}-oxathiolane-2,2,5-trione (CAS 5927-70-8)
- 4-Amino-1,2-thiazinan-3-one 1,1-dioxide (CAS 2151858-70-5)
- 4-(4-Fluorophenyl)but-3-yn-2-ol (CAS 229015-32-1)
- 4-Amino-2-ethyl-5-fluorobenzonitrile (CAS 2383797-49-5)
- 3-(3-Methoxyphenyl)-4-(((5-methylfuran-2-yl)methylene)amino)-1H-1,2,4-triazole-5(4H)-thione (CAS 613248-90-1)
- 5-nitroisoquinolin-1-amine (CAS 98410-86-7)
- 4-(Difluoromethyl)-6-hydroxy-5-methylpicolinic acid (CAS 1805202-14-5)
- 2-amino-3-(4-methylbenzoyl)-4H,5H,7H-1,6$l^{6}-thieno[2,3-c][1$l^{6}]thiopyran-6,6-dione (CAS 1803583-25-6)
- spiro[5,7-dihydropyrazolo[5,1-b][1,3]oxazine-6,1'-cyclopropane]-3-sulfonamide (CAS 2238821-17-3)
- 1-(1,3-Benzodioxol-5-yl)cyclopropanecarbonitrile (CAS 33522-14-4)
- (R)-1-(pyrazin-2-yl)ethan-1-amine hydrochloride (CAS 2173134-99-9)
- 2-(5-(4-Chlorophenyl)furan-2-yl)imidazo[1,2-a]pyridine (CAS 53174-13-3)
- 5-Methyl-3-nitro-1H-pyrrolo[3,2-b]pyridine (CAS 1190318-47-8)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
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