4-Chloro-3,5-dimethylbenzaldehyde CAS 51719-64-3
| CAS No. | 51719-64-3 |
| Molecular Formula | C9H9ClO |
| Molecular Weight | 168.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-Chloro-3,5-dimethylbenzaldehyde (CAS 51719-64-3) is a high-purity analytical reference standard with the molecular formula C9H9ClO and a molecular weight of 168.62 g/mol.
Based on its molecular formula C9H9ClO, 4-Chloro-3,5-dimethylbenzaldehyde contains 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 168.62 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.
As a certified reference material (CRM), 4-Chloro-3,5-dimethylbenzaldehyde 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 | C9H9ClO |
| Molecular Weight | 168.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
Related Chloro Standards
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Recommended Standards
- 4-Chloro-2-methylbenzenecarboximidamide (CAS 885964-13-6)
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- 4-Chloro-3-methylacetophenone (CAS 37074-39-8)
- N-(4-Amino-6-chloropyrimidin-5-yl)formamide (CAS 7501-32-8)
- 2-Propenoic acid, isooctyl ester, homopolymer (CAS 9036-63-9)
- 2,4,6-Trimethylbenzenesulfonamide (CAS 4543-58-2)
- 3-Chloro-2,5-dimethylaniline (CAS 13711-24-5)
- 4-hydrazinylpyridine (CAS 27256-91-3)
- 6-Chloro-4-methoxyquinoline-2-carboxylic acid (CAS 1355204-48-6)
- 510758-28-8 TBTA Tris-(Benzyltriazolylmethyl)amine Tris[(1-benzyl-1H-1,2,3-triazol-4-yl)methyl]amine (CAS 510758-28-8)
- 3-Pentyl-4-(trimethylsilyl)cyclobut-3-ene-1,2-dione (CAS 181126-38-5)
- Ethyl 7-methyl-3-phenyl-1H-indole-2-carboxylate (CAS 138653-55-1)
- Peptide Impurity 05 (CAS 2322924-83-2)
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