2-(5-Bromo-2-thienyl)acetic Acid CAS 71637-38-2
| CAS No. | 71637-38-2 |
| Molecular Formula | C6H5BrO2S |
| Molecular Weight | 221.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-(5-Bromo-2-thienyl)acetic Acid.
2-(5-Bromo-2-thienyl)acetic Acid (CAS 71637-38-2) is a high-purity analytical reference standard with the molecular formula C6H5BrO2S and a molecular weight of 221.07 g/mol.
Structurally, 2-(5-Bromo-2-thienyl)acetic Acid (C6H5BrO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 221.07 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C6H5BrO2S |
| Molecular Weight | 221.07 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.) | 1977 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 2-Bromo-5-methylthiazole-4-carboxamide (CAS 1025468-14-7)
- 2-bromo-N-methyl-thiazole-4-carboxamide (CAS 1092942-42-1)
- 4-Bromo-n'-hydroxythiophene-2-carboximidamide (CAS 1094456-19-5)
- 2-Bromo-4-methylthiazole-5-carboxamide (CAS 1254694-56-8)
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Recommended Standards
- 2-(3-Bromothiophen-2-yl)acetic acid (CAS 222554-10-1)
- 2-Bromo-5-methylthiophene-3-carboxylic acid (CAS 221061-14-9)
- 2-(2-Bromothiazol-4-yl)acetamide (CAS 500345-13-1)
- 2-Bromo-N-(thiazol-2-yl)acetamide (CAS 73326-20-2)
- Methyl 2-(azetidin-3-yl)benzoate (CAS 1203799-68-1)
- 2-Bromo-3-(3-methylphenyl)-1-propene (CAS 731772-18-2)
- 3-Bromo-4-methoxybenzenesulfonyl Chloride (CAS 23094-96-4)
- 1-(3-Methoxyphenyl)piperidine (CAS 32040-06-5)
- (2-(Aminomethyl)piperidin-1-yl)(2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanone hydrochloride (CAS 1353985-86-0)
- 6-Methyl-3-[(4-methylbenzyl)thio]-1,2,4-triazin-5(2H)-one (CAS 872629-58-8)
- (2,2,4,4-tetramethyloxetan-3-yl)methanamine (CAS 2306263-46-5)
- 1-(3-Fluorophenyl)piperazine (CAS 3801-89-6)
- (2E)-2-[2-(3,5-Dimethylphenyl)hydrazin-1-ylidene]-3-(4-methoxyphenyl)-3-oxopropanal (CAS 338400-32-1)
- (9-D-Asp) Semaglutide X Sodium salt (CAS CATO-CPTD788617)
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