2-(5-chloro-3-thienyl)acetic acid CAS 280760-72-7
| CAS No. | 280760-72-7 |
| Molecular Formula | C6H9ClO2S |
| Molecular Weight | 180.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 180.65 g/mol gives 2-(5-chloro-3-thienyl)acetic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-(5-chloro-3-thienyl)acetic acid (CAS 280760-72-7), a certified reference material (molecular formula C6H9ClO2S, MW 180.65 g/mol) for analytical method development and quality control.
Structurally, 2-(5-chloro-3-thienyl)acetic acid (C6H9ClO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 180.65 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H9ClO2S |
| Molecular Weight | 180.65 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related chloro Standards
- 3-chloro-5-methylthiophene-2-carboxylic acid (CAS 229343-22-0)
- 1-Chloro-5-(2-methoxyethoxy)pentane (CAS 1097787-32-0)
- 1-Chloro-3-(pent-4-en-1-yl)benzene (CAS 114423-29-9)
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- 1-Chloro-4-(pent-4-en-1-yl)benzene (CAS 134831-42-8)
- 1-Chloro-3,4-dimethyl-2,3-dihydro-1h-indene (CAS 1410427-26-7)
Recommended Standards
- 1-Allylcyclopropane-1-sulfonyl Chloride (CAS 923032-59-1)
- 2-(2-chlorothiophen-3-yl)acetic acid (CAS 188718-23-2)
- 4-(acetylsulfanyl)-1-chlorobutan-2-one (CAS 614760-04-2)
- Cyclohex-2-ene-1-sulfonyl chloride (CAS 1599627-89-0)
- 1-Bromo-7-nitronaphthalene (CAS 90948-04-2)
- 3-ethynyl-8-oxabicyclo[3.2.1]octane (CAS 1434141-91-9)
- Carbocyclic Thromboxane A2 (CAS 74034-56-3)
- 5-Cyclopropyl-1H-imidazole (CAS 89830-98-8)
- tert-Butyl 8-amino-2-azaspiro[5.5]undecane-2-carboxylate (CAS 1782722-51-3)
- Broxyquinoline-API (CAS 521-74-4)
- 2-(5-Methylthiophen-3-yl)butanoic acid (CAS 1495227-86-5)
- 4-(3,4-Difluorophenyl)thiosemicarbazide (CAS 848079-92-5)
- 877874-79-8 4-{5-[3-(Trifluoromethyl)anilino]-1,2-dihydro-3H-1,2,4-triazol-3-ylidene}cyclohexa-2,5-dien-1-one DTXSID20731086 (CAS 877874-79-8)
- Peptide Impurity 04 (CAS 2913424-91-4)
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