1-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)ethan-1-one CAS 250726-91-1
| CAS No. | 250726-91-1 |
| Molecular Formula | C8H8O3S |
| Molecular Weight | 184.21 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.
CATO supplies 1-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)ethan-1-one (CAS 250726-91-1), a certified reference material (molecular formula C8H8O3S, MW 184.21 g/mol) for analytical method development and quality control.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 1-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)ethan-1-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 184.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 1-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)ethan-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 | C8H8O3S |
| Molecular Weight | 184.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Sulfur Atoms | 1 |
Related Dihydrothieno Standards
- 3-Methyl-5,6-dihydrothieno[2,3-d]pyrimidine-2,4(1H,3H)-dione (CAS 21004-30-8)
- 1-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)-N-methylmethanamine (CAS 859851-03-9)
- (2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)boronic acid (CAS 1116093-39-0)
- 2,3-Dihydrothieno[3,4-b][1,4]dioxine-2-carboxylic acid (CAS 955373-67-8)
- 4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid (CAS 7712-05-2)
- 4-Methyl-6,7-dihydrothieno[3,2-c]pyridine-5(4H)-carbaldehyde (CAS 1254344-25-6)
- 7-Methyl-4,7-dihydrothieno[2,3-c]pyridine-6(5H)-carbaldehyde (CAS 678185-07-4)
- 4-Oxo-3,4-dihydrothieno[3,2-d]pyrimidine-7-carbaldehyde (CAS 1980052-54-7)
Recommended Standards
- [2-Fluoro-4-(propan-2-yloxy)phenyl]methanol (CAS 1997513-12-8)
- 1-(2-Ethoxy-5-fluorophenyl)ethanol (CAS 577-97-9)
- (E)-3-(4-(Hydroxymethyl)thiophen-2-yl)acrylic acid (CAS 915923-92-1)
- 1,2-Diethoxy-3-fluorobenzene (CAS 226555-35-7)
- 1-(5-Bromo-3-chloropyridin-2-yl)-2,2,2-trifluoroethan-1-one (CAS 2231673-26-8)
- 3-((1H-Pyrazol-1-yl)methyl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a][1,4]diazepine (CAS 1422069-30-4)
- 2-Fluoro-4-hydroxybenzaldehyde (CAS 348-27-6)
- 2'-Amino-4',5'-methylenedioxyacetophenone hydrochloride (CAS 93983-01-8)
- Clozapine Impurity 1 (CAS 69414-55-7)
- 3-Chloro-2-[4-(1H-pyrazol-3-yl)phenoxy]-5-(trifluoromethyl)pyridine (CAS 400087-42-5)
- 5-Methoxypentan-2-amine hydrochloride (CAS 2203016-55-9)
- 1-(2,6-Diazaspiro[3.3]heptan-2-yl)ethanone (CAS 1349978-43-3)
- 3-Acetyl-2,3,4,5-tetrahydro-1h-3-benzazepine-7-sulfonyl chloride (CAS 35760-18-0)
- (D-Tyr1,N-Me-Phe3)-Neuropeptide FF (H-4752.0001) (CAS 145274-93-7)
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