5,7-Difluorobenzo[b]thiophene-2-carboxylic acid CAS 550998-68-0
| CAS No. | 550998-68-0 |
| Molecular Formula | C9H4F2O2S |
| Molecular Weight | 214.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 214.19 g/mol gives 5,7-Difluorobenzo[b]thiophene-2-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5,7-Difluorobenzo[b]thiophene-2-carboxylic acid (CAS 550998-68-0), molecular formula C9H4F2O2S and molecular weight 214.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H4F2O2S, 5,7-Difluorobenzo[b]thiophene-2-carboxylic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 214.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5,7-Difluorobenzo[b]thiophene-2-carboxylic 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 | C9H4F2O2S |
| Molecular Weight | 214.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Difluorobenzo Standards
- 3-Ethyl-4,6-difluorobenzo[d]thiazol-2(3H)-imine (CAS 1286728-37-7)
- (S)-1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)prop-2-en-1-amine hydrochloride (CAS 1212870-27-3)
- (R)-1-(2,2-difluorobenzo[d][1,3]dioxol-4-yl)propan-1-amine (CAS 1212890-59-9)
- (R)-1-(2,2-difluorobenzo[d][1,3]dioxol-4-yl)prop-2-en-1-amine hydrochloride (CAS 1213150-66-3)
- (S)-1-(2,2-difluorobenzo[d][1,3]dioxol-4-yl)prop-2-en-1-amine hydrochloride (CAS 1213843-74-3)
- (R)-1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)propan-1-amine (CAS 1213950-31-2)
- (S)-1-(2,2-difluorobenzo[d][1,3]dioxol-4-yl)propan-1-amine (CAS 1213956-50-3)
- 1-(2,2-Difluorobenzo[d][1,3]dioxol-5-yl)ethane-1,2-diamine (CAS 1089345-78-7)
Recommended Standards
- 4-{[(2,2,2-trifluoroethyl)amino]methyl}benzonitrile (CAS 928648-96-8)
- 5-[4-(2H-tetrazol-5-yl)phenyl]-2H-tetrazole (CAS 6926-49-4)
- 4-(Ethylamino)-2-(trifluoromethyl)benzonitrile (CAS 864285-96-1)
- 5-Fluoro-2-((tetrahydrofuran-2-yl)methoxy)pyrimidin-4(1H)-one (CAS 63650-59-9)
- 3-(difluoromethyl)bicyclo[1.1.1]pentane-1-carboxylic acid (CAS 2090481-18-6)
- 1-(2-Aminoethyl)-4-methylpiperidin-4-ol (CAS 1520411-93-1)
- 1-(2-(3-Bromophenoxy)ethyl)piperazine (CAS 1002600-98-7)
- Heptyl(methyl)sulfane (CAS 20291-61-6)
- N-(4-cyclohexylphenyl)-2-(4-phenylpiperazin-1-yl)acetamide (CAS 212054-71-2)
- 2-Amino-6-fluoro-5-methoxybenzothiazole (CAS 1344684-78-1)
- 1-(2-Methoxyethyl)-3-(phenyl(prop-2-yn-1-ylamino)methyl)pyrrolidin-2-one (CAS 1416372-52-5)
- Benserazide EP Impurity B DiHCl (CAS CATO-C4X-14272)
- Tert-butyl 6-bromo-5-methyl-3,4-dihydroisoquinoline-2(1H)-carboxylate (CAS 1823585-31-4)
- C-Peptide 1 (rat) (CAS 41475-27-8)
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