(E)-3-hydroxyisobenzofuran-1-carbaldehyde O-(3,4-dichlorobenzyl) oxime CAS 339023-49-3
| CAS No. | 339023-49-3 |
| Molecular Formula | C16H11Cl2NO3 |
| Molecular Weight | 336.17 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 (E)-3-hydroxyisobenzofuran-1-carbaldehyde O-(3,4-dichlorobenzyl) oxime.
CATO supplies (E)-3-hydroxyisobenzofuran-1-carbaldehyde O-(3,4-dichlorobenzyl) oxime (CAS 339023-49-3), a certified reference material (molecular formula C16H11Cl2NO3, MW 336.17 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, (E)-3-hydroxyisobenzofuran-1-carbaldehyde O-(3,4-dichlorobenzyl) oxime is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 336.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C16H11Cl2NO3 |
| Molecular Weight | 336.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related E Standards
- (E)-3-hydroxyisobenzofuran-1-carbaldehyde O-(2,4-dichlorobenzyl) oxime (CAS 339022-55-8)
- (E)-3-hydroxyisobenzofuran-1-carbaldehyde O-(2,6-dichlorobenzyl) oxime (CAS 339023-47-1)
- 4-(((3-Hydroxyisobenzofuran-1-yl)methylene)amino)-N,N-dimethylbenzenesulfonamide (CAS 339008-28-5)
- (E)-3-hydroxyisobenzofuran-1-carbaldehyde O-(4-chlorobenzyl) oxime (CAS 339023-46-0)
- 4-Ethyl-7-hydroxyisobenzofuran-1,3-dione (CAS 62596-58-1)
- 4-Ethyl-7-hydroxyisobenzofuran-1(3H)-one (CAS 62596-60-5)
- 5-Hydroxyisobenzofuran-1,3-dione (CAS 27550-59-0)
- 4-Hydroxyisobenzofuran-1(3H)-one (CAS 13161-32-5)
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