2,4-dihydroxy-5-iodobenzoic acid CAS 856106-63-3
| CAS No. | 856106-63-3 |
| Molecular Formula | C7H5IO4 |
| Molecular Weight | 280.02 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 2,4-dihydroxy-5-iodobenzoic acid.
2,4-dihydroxy-5-iodobenzoic acid (CAS 856106-63-3), molecular formula C7H5IO4 and molecular weight 280.02 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,4-dihydroxy-5-iodobenzoic acid (C7H5IO4) 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 280.02 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.
CATO manufactures 2,4-dihydroxy-5-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 | C7H5IO4 |
| Molecular Weight | 280.02 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.) | 1987 |
| Halogen Content | I-containing |
Related dihydroxy Standards
- 3,5-Dihydroxy-4-iodobenzoic acid (CAS 76447-13-7)
- Phenyl 1,4-dihydroxy-2-naphthoate (CAS 54978-55-1)
- N,2-Dihydroxy-5-iodobenzamide (CAS 177348-38-8)
- 8 β,9α-Dihydroxy-10 β,11 β-epoxy-8,9,10,11-tetrahydrobenzo[a]anthracene (CAS 64937-39-9)
- 1,3-Dihydroxy-12h-benzo[b]xanthen-12-one (CAS 22315-94-2)
- 8,10-Dihydroxy-7H-benzo[c]xanthen-7-one (CAS 53865-02-4)
- 9,11-Dihydroxy-12H-benzo[a]xanthen-12-one (CAS 53865-04-6)
- 1-(2,4-Dihydroxy-3-iodophenyl)ethan-1-one (CAS 71243-12-4)
Recommended Standards
- 2,3-Difluoro-5-nitrophenacyl bromide (CAS 1807183-56-7)
- 2-Bromo-1-(2,6-difluoro-3-nitrophenyl)ethanone (CAS 746630-00-2)
- 2-Chloro-5-(chloromethyl)-4-(difluoromethyl)-3-(trifluoromethyl)pyridine (CAS 1807099-35-9)
- 2-Iodoxybenzoic Acid (CAS 61717-82-6)
- {6-methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl}methanamine (CAS 1638767-70-0)
- tert-Butyl 7-oxo-5-oxa-2-azaspiro[3.4]octane-2-carboxylate (CAS 1408075-90-0)
- Benzyl (2-oxopyrrolidin-3-yl)carbamate (CAS 42259-95-0)
- 1-(Cyclobutylmethyl)-3-phenyl-1H-pyrazol-5-amine (CAS 1349988-71-1)
- N-(4-Butylphenyl)-2-chloro-4-nitrobenzamide (CAS 303990-50-3)
- 2-Tert-Butyl-4-Hydroxyanisole (CAS 88-32-4)
- Pregnenolone Impurity 12 (CAS 66880-01-1)
- 1-Benzyl 4-(tert-butyl) (S)-2-(cyanomethyl)piperazine-1,4-dicarboxylate (CAS 2158302-00-0)
- 4-bromo-7-chloroisoquinoline hydrochloride (CAS 1803572-19-1)
- Semaglutide impurity 244(Fmoc-His(Fmoc)-Aib-OH) (CAS CATO-C4X-2226244)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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