2-Hydroxy-4-iodobenzoic acid CAS 16870-28-3
| CAS No. | 16870-28-3 |
| Molecular Formula | C7H11IO3 |
| Molecular Weight | 270.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-Hydroxy-4-iodobenzoic acid (C7H11IO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 270.06 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
2-Hydroxy-4-iodobenzoic acid (CAS 16870-28-3), molecular formula C7H11IO3 and molecular weight 270.06 g/mol, is a CATO reference standard with documented purity and traceability.
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.
CATO manufactures 2-Hydroxy-4-iodobenzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H11IO3 |
| Molecular Weight | 270.06 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | I-containing |
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- 2-(2-Chloro-6-(chloromethyl)-4-(difluoromethyl)pyridin-3-yl)acetic acid (CAS 1805183-25-8)
- 5-Isothiocyanato-2-(trifluoromethyl)pyridine (CAS 1208672-46-1)
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- (R)-mono-Ethyl 3-acetoxyglutarate (CAS 113036-11-6)
- 6-Bromoimidazo[1,2-a]pyridine-8-carbonitrile (CAS 911113-15-0)
- 4,7-Dichlorocinnoline hydrochloride (CAS 1427081-03-5)
- N-Acetyl-d3-S-(3-hydroxypropyl-1-methyl)-L-cysteine Dicyclohexylammonium Salt (CAS 1240483-48-0)
- 1,2,3-trimethoxy-4,5-dihydro-6H-dibenzo[de,g]quinoline-6-carbaldehyde (CAS 107633-69-2)
- 2,4-Thiazolidinedione (CAS 2295-31-0)
- 3-((Ethoxycarbonothioyl)thio)propane-1-sulfonic acid (CAS 34005-00-0)
- D-allo-Thr5-Semaglutide (CAS CATO-C4X-2226243)
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