3,6-Dihydroxy-2-iodobenzaldehyde CAS 70738-05-5
| CAS No. | 70738-05-5 |
| Molecular Formula | C7H5IO3 |
| Molecular Weight | 264.02 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 3,6-Dihydroxy-2-iodobenzaldehyde.
3,6-Dihydroxy-2-iodobenzaldehyde (CAS 70738-05-5), molecular formula C7H5IO3 and molecular weight 264.02 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3,6-Dihydroxy-2-iodobenzaldehyde (C7H5IO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 264.02 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3,6-Dihydroxy-2-iodobenzaldehyde meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H5IO3 |
| Molecular Weight | 264.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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 | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | I-containing |
Related Dihydroxy Standards
- 2,4-Dihydroxy-5-iodobenzaldehyde (CAS 131088-03-4)
- 2,4-Dihydroxy-3-iodobenzaldehyde (CAS 82954-52-7)
- 3,4-Dihydroxy-5-iodobenzaldehyde (CAS 54246-05-8)
- Ethyl (5,7-dihydroxy-2-oxo-2H-chromen-4-yl)acetate (CAS 91903-73-0)
- Ethyl 2-(7,8-dihydroxy-2-oxo-2h-chromen-4-yl)acetate (CAS 854045-68-4)
- Methyl (7,8-dihydroxy-4-methyl-2-oxo-2H-chromen-3-yl)acetate (CAS 853749-61-8)
- Methyl 2-(5,7-dihydroxy-4-methyl-2-oxo-2h-chromen-3-yl)acetate (CAS 892559-73-8)
- Methyl 2-(6,7-dihydroxy-4-methyl-2-oxo-2h-chromen-3-yl)acetate (CAS 853749-60-7)
Recommended Standards
- 3-Hydroxy-2-iodobenzoic acid (CAS 75821-44-2)
- 3-(5-Iodofuran-2-yl)acrylic acid (CAS 64186-22-7)
- Lifitegrast Impurity N4 (CAS 58123-77-6)
- 2-Iodosobenzoic acid (CAS 304-91-6)
- 3-Fluoro-4-(trifluoromethoxy)benzaldehyde (CAS 473917-15-6)
- 1-[(1-Ethyl-1H-pyrazol-4-yl)methyl]-3-methyl-1H-pyrazol-5-amine (CAS 1415719-24-2)
- N-(5-bromo-1,3,4-thiadiazol-2-yl)-N-methylacetamide (CAS 64837-27-0)
- 1-Amino-3-(3,4-dimethylphenyl)propan-2-ol (CAS 1368712-24-6)
- 1-Methyloctahydroisoquinolin-4a(2H)-ol (CAS 81562-79-0)
- 2-{[4-(thiophen-2-yl)-6-(trifluoromethyl)pyrimidin-2-yl]sulfanyl}acetic acid (CAS 505054-60-4)
- 4-Hydrazinyltetrahydropyran Hydrochloride (CAS 194543-22-1)
- 1,4,5,6-Tetrahydrocyclopenta[c]pyrazole (CAS 2214-03-1)
- 2-Amino-3-(6-methylpyridin-2-yl)propanamide (CAS 1502318-81-1)
- Peptide 436 (CAS CATO-CPTD788436)
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