3-Formyl-4-hydroxy-5-iodobenzoic acid CAS 33257-38-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 33257-38-4 |
| Molecular Formula | C8H5IO4 |
| Molecular Weight | 292.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Formyl-4-hydroxy-5-iodobenzoic acid (CAS 33257-38-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H5IO4. Molecular weight: 292.03 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H5IO4 |
| Molecular Weight | 292.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; 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.) | 1966 |
| Halogen Content | I-containing |
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Recommended Standards
- 2-iodo-Isophthalic acid (CAS 2902-65-0)
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- 3-Amino-7-bromoindolin-2-one (CAS 1249852-68-3)
- 1-Acetyl-1,2,3,4-tetrahydroquinolin-7-amine hydrochloride (CAS 1417355-08-8)
- 3-(4-Chlorophenyl)-N,N-dimethyl-4-oxo-3,4-dihydrophthalazine-1-carboxamide (CAS 339021-29-3)
- 3-(tert-Butoxycarbonylamino)tetrahydrothiophene-3-carboxylic acid (CAS 108329-86-8)
- N'-(3-chloropropanoyl)-3-fluorobenzohydrazide (CAS 1823182-50-8)
- tert-Butyl n-(2-sulfamoylethyl)carbamate (CAS 1375279-51-8)
- Semaglutide impurity 233 (CAS CATO-C4X-2226233)
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