Methyl 5-bromo-3-iodothiophene-2-carboxylate CAS 1389313-67-0
| CAS No. | 1389313-67-0 |
| Molecular Formula | C6H4BrIO2S |
| Molecular Weight | 346.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Methyl 5-bromo-3-iodothiophene-2-carboxylate (CAS 1389313-67-0), molecular formula C6H4BrIO2S and molecular weight 346.97 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methyl 5-bromo-3-iodothiophene-2-carboxylate (C6H4BrIO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine/iodine 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 346.97 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C6H4BrIO2S |
| Molecular Weight | 346.97 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| 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/I-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 4-bromo-5-iodothiophene-2-carboxylate (CAS 1047635-94-8)
- 4-[(5-Bromo-4,6-dichloro-2-pyrimidinyl)amino]benzonitrile-13C3 (CAS 1246816-61-4)
- Methyl 3-bromo-5-iodothiophene-2-carboxylate (CAS 1355039-67-6)
- 5-bromo-7-chloro-2-oxo-2,3-dihydro-1,3-benzoxazole-6-sulfonyl chloride (CAS 1423031-26-8)
- Methyl 4-bromo-5-iodothiophene-3-carboxylate (CAS 24647-84-5)
- 5-Bromo-2-(2-bromophenyl)-2H-1,2,3-triazole-4-carboxylic acid (CAS 1710661-05-4)
- 6-Bromo-2,4-fifluoro-3-formylphenylboronic acid pinacol ester (CAS 2121512-44-3)
- Methyl 5-bromo-2-iodobenzoate (CAS 181765-86-6)
Recommended Standards
- 1,5-Dichloro-3-(ethoxymethoxy)-2-iodobenzene (CAS 1028332-20-8)
- 2-Chloroethyl stearate (CAS 1119-75-1)
- 6,8-Dibromo-2-oxo-2H-chromene-3-carboxamide (CAS 98994-86-6)
- 1-(Bromomethyl)-8-iodonaphthalene (CAS 1072102-46-5)
- Urushiol (15:3) (CAS 83543-37-7)
- 2-(2-Methoxypyridin-4-yl)-2-methylpropan-1-amine (CAS 1060807-35-3)
- 4-(4-Bromo-1H-pyrazol-1-yl)-3-chlorobenzaldehyde (CAS 1525786-05-3)
- (R)-C3-TUNEPHOS (CAS 301847-89-2)
- 5-(Aminomethyl)picolinic acid (CAS 53397-80-1)
- 3-(4-Ethoxyphenyl)-6,7-dihydro-5H-pyrrolo[1,2-a]imidazole (CAS 300695-12-9)
- 9H-Xanthene (CAS 92-83-1)
- 5-((3-Nitro-1h-pyrazol-1-yl)methyl)thiophene-2-carboxylic acid (CAS 1006457-74-4)
- 2-[(5-methyl-1,2-oxazol-4-yl)formamido]propanoic acid (CAS 1396973-15-1)
- Semaglutide impurity 256 (CAS CATO-C4X-2226256)
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