4-Bromo-5-butylthiophene-2-carboxylic acid CAS 1399656-15-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1399656-15-5 |
| Molecular Formula | C9H11BrO2S |
| Molecular Weight | 263.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-5-butylthiophene-2-carboxylic acid (CAS 1399656-15-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H11BrO2S. Molecular weight: 263.15 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H11BrO2S |
| Molecular Weight | 263.15 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- tert-Butyl 5-bromothiophene-3-carboxylate (CAS 1507295-95-5)
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- 1-Bromo-3-(propylsulfonyl)benzene (CAS 153435-83-7)
- 6-(1,3-Dimethyl-1h-pyrazol-4-yl)pyridazin-3-amine (CAS 1483414-12-5)
- 2-(6-Bromo-5-methoxy-1H-indol-3-yl)acetonitrile (CAS 1033715-38-6)
- 3-(4-Methyl-4-piperidinyl)pyridine (CAS 1343593-92-9)
- N,N-(2,4-Toluene)bis-4-(2-pyridinyl)-2-piperazinecarboxylic acid (CAS 337511-96-3)
- 5-(5-Bromo-3-methylpyridin-2-yl)pentan-1-amine (CAS 1518372-62-7)
- Loratadine impurity 11 (CAS 165739-62-8)
- Acetyl-Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 2022956-56-3)
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