3-(4-Iodophenyl)-2-mercaptoacrylic acid CAS 426821-41-2
| CAS No. | 426821-41-2 |
| Molecular Formula | C9H7IO2S |
| Molecular Weight | 306.12 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 3-(4-Iodophenyl)-2-mercaptoacrylic acid.
3-(4-Iodophenyl)-2-mercaptoacrylic acid (CAS 426821-41-2) is a high-purity analytical reference standard with the molecular formula C9H7IO2S and a molecular weight of 306.12 g/mol.
3-(4-Iodophenyl)-2-mercaptoacrylic acid (C9H7IO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C9H7IO2S |
| Molecular Weight | 306.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | I-containing |
| Sulfur Atoms | 1 |
Related Iodophenyl Standards
- 1-(4-Iodophenyl)cyclopropanecarbonyl chloride (CAS 630385-80-7)
- N-(3-iodophenyl)tetrahydrothiophen-3-amine (CAS 1152560-15-0)
- N-(2-iodophenyl)tetrahydrothiophen-3-amine (CAS 1152561-16-4)
- 1-(4-Iodophenyl)-N-(2-methoxyethyl)ethan-1-amine (CAS 1157353-41-7)
- 3-((1-(4-Iodophenyl)ethyl)amino)propan-1-ol (CAS 1157795-43-1)
- 2-(4-Iodophenyl)pyrimidine-5-carbonitrile (CAS 1447606-05-4)
- 2-(3-Iodophenyl)pyrimidine-5-carbonitrile (CAS 1447606-96-3)
- 2-[(4-Iodophenyl)amino]propanohydrazide (CAS 1397002-31-1)
Recommended Standards
- 3-(4-Bromobenzyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (CAS 937604-16-5)
- 5-((3-Iodoprop-2-yn-1-yl)oxy)-2-(methylthio)pyrimidine (CAS 37750-83-7)
- 2-amino-8-(4-bromophenyl)-6,9-dihydro-1H-purin-6-one (CAS 79953-09-6)
- 6-(2-Bromo-4-methylphenoxy)tetrazolo[1,5-b]pyridazine (CAS 949445-85-6)
- Methyl 6-Oxo-1,6-dihydropyridazine-4-carboxylate (CAS 89640-81-3)
- N-Dodecanoyl-phenylalaninemonosodiumsalt (CAS 37869-82-2)
- H-Ser-Val-OH (CAS 51782-06-0)
- 2,9-Dibromo-5,6-dioctylnaphtho[2,1-b:3,4-b']dithiophene (CAS 1040858-84-1)
- 3-Amino-1-methylpyridin-2(1H)-one hydrochloride (CAS 1523570-95-7)
- 3-(Chloromethyl)-5-phenyl-1,2,4-oxadiazole (CAS 1201-68-9)
- Ethyl 7-bromo-4-oxo-4H-pyrimido[1,2-a]pyrimidine-3-carboxylate (CAS 1352394-04-7)
- 4-Bromo-1-cyclopropyl-2-fluorobenzene (CAS 1353855-10-3)
- 1-(Pyridin-3-yl)-N-((tetrahydro-2H-pyran-4-yl)methyl)ethan-1-amine hydrochloride (CAS 1803593-71-6)
- Semaglutide Impurity 124 (CAS CATO-C4X-2226124)
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