4-(3-Oxo-2,3-dihydro-1,2-benzothiazol-2-yl)butanoic acid CAS 89139-50-4
| CAS No. | 89139-50-4 |
| Molecular Formula | C11H11NO3S |
| Molecular Weight | 237.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(3-Oxo-2,3-dihydro-1,2-benzothiazol-2-yl)butanoic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(3-Oxo-2,3-dihydro-1,2-benzothiazol-2-yl)butanoic acid (CAS 89139-50-4) is a high-purity analytical reference standard with the molecular formula C11H11NO3S and a molecular weight of 237.27 g/mol.
4-(3-Oxo-2,3-dihydro-1,2-benzothiazol-2-yl)butanoic acid (C11H11NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 4-(3-Oxo-2,3-dihydro-1,2-benzothiazol-2-yl)butanoic acid 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 | C11H11NO3S |
| Molecular Weight | 237.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Oxo Standards
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- 3-(3-Oxo-3,4-dihydro-2h-1,4-benzothiazin-4-yl)propanoic acid (CAS 37012-79-6)
- 3,4-Dihydro-4-oxo-1,5-benzothiazepine-5(2H)-acetic acid (CAS 383187-85-7)
- 2-(3-Oxo-3,4-dihydro-2H-benzo[b][1,4]thiazin-2-yl)acetohydrazide (CAS 175202-65-0)
- 1,2-Dihydro-2,5-(diphenyl)-3H-1,2,4-triazol-3-one (CAS 118946-49-9)
- n-(3,4-Dihydro-2h-benzo[b][1,4]dioxepin-7-yl)-2-methoxyacetamide (CAS 1097176-34-5)
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Recommended Standards
- 4-((Trifluoromethyl)thio)benzothioamide (CAS 926269-75-2)
- 4-(4-Methoxyphenyl)thiomorpholine-3,5-dione (CAS 338409-70-4)
- 4-((4-Fluorophenyl)amino)piperidine-4-carboxamide (CAS 878441-19-1)
- 4-(P-tolyl)thiomorpholine-3,5-dione 1-oxide (CAS 338421-03-7)
- 4-Allyl-5-[3-(4-chloro-2-methylphenoxy)propyl]-4H-1,2,4-triazole-3-thiol (CAS 956576-80-0)
- 2-Chloromethyl-6-fluorobenzo[d]thiazole, 97% (CAS 124050-14-2)
- 5-Bromo-4-chloro-3-indolyl-α-D-N-acetylneuraminic acid methyl ester, 97% (CAS 1037565-81-3)
- 2-Chloroindole (CAS 7135-31-1)
- 3-ethyl-8-methyl-4-oxo-1,4-dihydroquinoline-3,8-dicarboxylate (CAS 111185-66-1)
- 3-Ethyl-4-hydroxy-5-isopropylbenzaldehyde (CAS 10507-86-5)
- Olopatadine Impurity 12 (CAS 66801-40-9)
- (R)-4-(Pyrrolidin-3-ylmethyl)-1H-imidazole (CAS 738578-40-0)
- 2-Acetamido-3-(3,4,5-trifluorophenyl)propanoic acid (CAS 324028-06-0)
- TRAF6 Peptide trifluoroacetate salt (CAS 852805-92-6)
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