3,4,6-Trichloro-1-benzothiophene-2-carboxylic acid CAS 34576-90-4
| CAS No. | 34576-90-4 |
| Molecular Formula | C9H3Cl3O2S |
| Molecular Weight | 281.54 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.
3,4,6-Trichloro-1-benzothiophene-2-carboxylic acid (CAS 34576-90-4) is a high-purity analytical reference standard with the molecular formula C9H3Cl3O2S and a molecular weight of 281.54 g/mol.
Structurally, 3,4,6-Trichloro-1-benzothiophene-2-carboxylic acid (C9H3Cl3O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 281.54 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H3Cl3O2S |
| Molecular Weight | 281.54 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.) | 1966 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Trichloro Standards
- 3-Methyl-1-(2,3,5-trichloro-6-hydroxyphenyl)butan-1-one (CAS 1248407-77-3)
- 2,3,3-Trichloro-N-(6-methoxypyridin-3-yl)acrylamide (CAS 338965-63-2)
- 4,5,7-Trichloro-2,3-dihydrobenzofuran-3-acetic Acid (CAS 2070896-42-1)
- 2,2,2-trichloro-1-(4,5-dichloro-1H-pyrrol-2-yl)ethanone (CAS 50371-51-2)
- 1,2,4-Trichloro-5-[chloro(difluoro)methoxy]benzene 1417568-31-0 (CAS 1417568-31-0)
- 4,6,8-Trichloro-2-(methylthio)pyrido[3,4-d]pyrimidine (CAS 2368910-57-8)
- 2,2,2-Trichloro-1-(4-(cyclopropanecarbonyl)-1H-pyrrol-2-yl)ethan-1-one (CAS 885950-09-4)
- 2,2,2-Trichloro-1-(5-fluoro-1H-indol-3-yl)ethanone (CAS 1822857-19-1)
Recommended Standards
- (4-Chloro-3-(cyclohexylcarbamoyl)phenyl)boronic acid (CAS 871332-92-2)
- 5-Bromo-4-chloro-8-methylquinoline-3-carbonitrile (CAS 936497-83-5)
- (3-Chloro-4-(cyclohexylcarbamoyl)phenyl)boronic acid (CAS 957034-65-0)
- 6-Bromo-4-chloro-7-methylquinoline-3-carbonitrile (CAS 936497-85-7)
- Benzyl 3-amino-2-methylpiperidine-1-carboxylate (CAS 1823287-85-9)
- 5β-PREGNAN-3α, 11β, 20β-TRIOL (CAS 10417-85-3)
- 3-(3-(P-tolyl)-1,2,4-oxadiazol-5-yl)aniline (CAS 915921-22-1)
- (S)-Benzofuran-2-yl(pyridin-3-yl)methanamine dihydrochloride (CAS 2243501-25-7)
- N-methoxy-N-methyl-4-oxopentanamide (CAS 193805-82-2)
- 2-chloro-N-(4-methoxybenzyl)-N-methylacetamide (CAS 851169-12-5)
- Methyl 4-(cyanocarbonyl)benzoate (CAS 198978-34-6)
- 4-(Ethylthio)benzoyl chloride (CAS 108249-17-8)
- Ethyl (4-acetyl-2-nitrophenyl)glycinate (CAS 1293926-69-8)
- Liraglutide(13-31)TFA Salt (CAS CATO-C4X-19929)
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