(E)-3,4-dichlorobenzaldehyde oxime CAS 5331-92-0
| CAS No. | 5331-92-0 |
| Molecular Formula | C7H5Cl2NO |
| Molecular Weight | 190.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 190.03 g/mol gives (E)-3,4-dichlorobenzaldehyde oxime distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(E)-3,4-dichlorobenzaldehyde oxime (CAS 5331-92-0), molecular formula C7H5Cl2NO and molecular weight 190.03 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H5Cl2NO, (E)-3,4-dichlorobenzaldehyde oxime contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 190.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 (E)-3,4-dichlorobenzaldehyde oxime 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 | C7H5Cl2NO |
| Molecular Weight | 190.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related E Standards
- (E)-2,3-dichlorobenzaldehyde oxime (CAS 4414-54-4)
- (E)-2,6-Dichlorobenzaldehyde oxime (CAS 6575-28-6)
- 3,5-dichlorobenzaldehyde oxime (CAS 93033-57-9)
- (Z)-2,5-DichlorobenzalDehyde Oxime (CAS CATO-C3D-262679)
- 2,6-dichlorobenzaldehyde (CAS 83-38-5)
- 2,5-Dichlorobenzaldehyde (CAS 6361-23-5)
- (E)-2,4-dichlorobenzaldehyde O-((5-((4-bromophenyl)thio)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methyl) oxime (CAS 477712-45-1)
- (E)-2,6-dichlorobenzaldehyde O-((5-((4-bromophenyl)thio)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methyl) oxime (CAS 477713-23-8)
Recommended Standards
- (Z)-2-Chloro-N-hydroxybenzimidoyl chloride (CAS 909132-95-2)
- 1-(2,5-Dichloropyridin-3-yl)ethan-1-one (CAS 594815-00-6)
- (5-(methoxycarbonyl)thiophen-3-yl)boronic acid (CAS 957062-52-1)
- 1-(2,5-Dichloropyridin-4-yl)ethan-1-one (CAS 736990-29-7)
- 7-Methoxy-9-(4-phenylpiperazin-1-yl)-2,3-dihydro-1H-cyclopenta[b]quinoline (CAS 40527-88-6)
- 3-Fluorophenyl 5-(1,2,3-thiadiazol-4-yl)thiophene-2-sulfonate (CAS 338400-16-1)
- trans-(±)-3,5-Dihydroxy-cyclohexanone (CAS 165523-04-6)
- Methyl (2-(1-acetyl-5-chloro-1H-indol-3-yl)ethyl)carbamate (CAS 88368-95-0)
- Ethyl 3-chloro-6-methylpicolinate (CAS 1261489-50-2)
- 4-(prop-2-yn-1-yl)-1$l^{6},4-thiazepane-1,1-dione (CAS 1697444-33-9)
- 5-Methylquinazolin-4(3H)-one (CAS 75844-41-6)
- Isavuconazole Impurity 98 (CAS CATO-C4X-123698)
- 2-Phenoxy-4h-1,3,2-benzodioxaphosphorin2-oxide (CAS 4081-23-6)
- Peptide 433 (CAS CATO-CPTD788433)
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