(4r)-3,4-Dihydro-2h-1-benzothiopyran-4-ol CAS 120466-74-2
| CAS No. | 120466-74-2 |
| Molecular Formula | C9H10OS |
| Molecular Weight | 166.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (4r)-3,4-Dihydro-2h-1-benzothiopyran-4-ol (CAS 120466-74-2), a certified reference material (molecular formula C9H10OS, MW 166.24 g/mol) for analytical method development and quality control.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system, (4r)-3,4-Dihydro-2h-1-benzothiopyran-4-ol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 166.24 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (4r)-3,4-Dihydro-2h-1-benzothiopyran-4-ol 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 | C9H10OS |
| Molecular Weight | 166.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Sulfur Atoms | 1 |
Related r Standards
- 3,4-dihydro-1H-2-benzothiopyran-4-ol (CAS 109819-33-2)
- (2,3-Dihydro-1-benzothiophen-3-yl)methanol (CAS 123392-40-5)
- 3,4-dihydro-2H-1-benzopyran-4-thiol (CAS 132686-69-2)
- (4S)-3,4-Dihydro-2H-1-benzothiopyran-4-ol (CAS 135711-13-6)
- 3,4-dihydro-2h-1-benzothiopyran-4-ol (CAS 40316-60-7)
- 3-(6,7-Dihydro-5H-pyrrolo[2,1-c][1,2,4]triazol-3-yl)propan-1-amine (CAS 1094218-65-1)
- 1-(5,6-Dihydro-4H-pyrrolo[1,2-b]pyrazol-2-yl)propan-2-ol (CAS 1537588-79-6)
- 3-Butyl-5,6-dihydro-4H-pyrrolo[3,2-d]isoxazole (CAS 603067-50-1)
Recommended Standards
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- 3-(Propane-1-sulfonyl)-propan-1-ol (CAS 1176457-22-9)
- 2-Amino-N,N-dimethylpropane-1-sulfonamide (CAS 1225970-29-5)
- 3-(3-Chlorophenyl)-1,2,4-oxadiazol-5-amine (CAS 62508-75-2)
- Isopropyl 1H-pyrrole-1-carboxylate (CAS 683273-83-8)
- 2-Chloro-3-fluoro-5-(trifluoromethyl)pyridine (CAS 72600-67-0)
- 2-(5-Bromo-2-fluorophenyl)-3-methylbutanoic acid (CAS 1509658-84-7)
- n-[2-(diethylamino)ethyl]-4-(hydrazinecarbonyl)benzene-1-sulfonamide (CAS 795290-94-7)
- 1-(4-Chloro-3-(trifluoromethyl)phenyl)propan-1-amine (CAS 1270540-71-0)
- N-(2,6-Diethylphenyl)-2-oxo-1-{[3-(trifluoromethyl)phenyl]methyl}-1,2-dihydropyridine-3-carboxamide (CAS 339027-88-2)
- Ethyl 1-(Bromomethyl)cyclobutanecarboxylate (CAS 1823369-78-3)
- 1,2,4-Oxadiazole-3-carboxamide (CAS 39512-74-8)
- Liraglutide Impurity 28 (CAS CATO-C4X-199228)
Why CATO?
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