3-Iodo-1H-indazol-4-ol CAS 1246307-74-3
| CAS No. | 1246307-74-3 |
| Molecular Formula | C7H5IN2O |
| Molecular Weight | 260.03 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-Iodo-1H-indazol-4-ol.
3-Iodo-1H-indazol-4-ol (CAS 1246307-74-3) is a high-purity analytical reference standard with the molecular formula C7H5IN2O and a molecular weight of 260.03 g/mol.
The molecular framework of 3-Iodo-1H-indazol-4-ol (C7H5IN2O) is characterized by an amide group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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.
Physical & Chemical Properties
| Molecular Formula | C7H5IN2O |
| Molecular Weight | 260.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
Related Iodo Standards
- 3-Iodo-1H-indazol-6-ol (CAS 1082040-27-4)
- 3-Iodo-2H-indazol-7-ol (CAS 1082040-28-5)
- 4-Iodo-1H-pyrrolo[2,3-b]pyridin-6-ol (CAS 1190310-48-5)
- 3-Iodo-1H-pyrrolo[2,3-b]pyridin-4-ol (CAS 1190314-37-4)
- 7-Iodo-1H-indazol-6-ol (CAS 1190314-62-5)
- 3-Iodo-1H-pyrrolo[3,2-c]pyridin-6(5H)-one (CAS 1190315-85-5)
- 3-Iodo-1,6-dihydro-7H-pyrrolo[2,3-c]pyridin-7-one (CAS 1190316-65-4)
- 3-Iodo-1H-pyrrolo[3,2-b]pyridin-6-ol (CAS 1190316-99-4)
Recommended Standards
- 3,4-Dichloro-7-nitro-1H-isochromen-1-one (CAS 123472-98-0)
- 6-Iodo-1,3-dihydro-2H-pyrrolo[3,2-b]pyridin-2-one (CAS 1260381-60-9)
- 5-Iodo-1H-indazol-6-ol (CAS 1227268-78-1)
- 5-Iodobenzo[d]isoxazol-3-amine (CAS 1260812-04-1)
- 5-(Azepan-4-yl)-3-methyl-1,2,4-oxadiazole (CAS 1429903-96-7)
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- (5-Butoxynaphthalen-1-yl)boronic acid (CAS 372521-99-8)
- 3-(3,5-Dimethyl-1h-pyrazol-1-yl)-2-methylpropanenitrile (CAS 1006319-92-1)
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- 4-(3-Hydroxybutyl)-1-(4-hydroxyphenyl)-2-phenylpyrazolidine-3,5-dione (CAS 7720-49-2)
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