2-Chloro-5-methylbenzaldehyde CAS 14966-09-7
| CAS No. | 14966-09-7 |
| Molecular Formula | C8H7ClO |
| Molecular Weight | 154.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
2-Chloro-5-methylbenzaldehyde (CAS 14966-09-7) is a high-purity analytical reference standard with the molecular formula C8H7ClO and a molecular weight of 154.59 g/mol.
Structurally, 2-Chloro-5-methylbenzaldehyde (C8H7ClO) contains a hydroxyl group, an ether linkage, chlorine 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 154.59 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).
As a certified reference material (CRM), 2-Chloro-5-methylbenzaldehyde 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 | C8H7ClO |
| Molecular Weight | 154.59 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.) | 1961 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 4-Chloro-3-methylbenzaldehyde (CAS 101349-71-7)
- 5-Chloro-1,3-dihydroisobenzofuran (CAS 1013915-43-9)
- 3-Chloro-5-methylbenzaldehyde (CAS 103426-20-6)
- 1-Chloro-4-(vinyloxy)benzene (CAS 1074-56-2)
- 7-Chloro-2,3-dihydrobenzofuran (CAS 1174005-71-0)
- 3-Chloro-2-vinylphenol (CAS 145706-55-4)
- 1-chloro-3-(2-hydroxyethoxy)propan-2-ol (CAS 18371-74-9)
- 2-Chloro-1,1-difluorocyclohexane (CAS 86660-40-4)
Recommended Standards
- 2,4-difluorochlorobenzene (CAS 1435-44-5)
- (R)-(2-Chlorophenyl)oxirane (CAS 62566-66-9)
- (S)-2-(2-Chlorophenyl)oxirane (CAS 141394-10-7)
- (R)-2-(3-chlorophenyl)oxirane (CAS 62600-71-9)
- 6-Bromo-2,3-dihydrobenzofuran-3-ol (CAS 1392072-52-4)
- 1-(3-Cyclohexylureido)-1-oxopropan-2-yl 2-(methylthio)nicotinate (CAS 851396-85-5)
- 3-(3-Chloro-4,5-difluorophenyl)propanal (CAS 1260829-42-2)
- N,N-DET hydrochloride (CAS 63938-63-6)
- 18-[[(1R)-1-carboxy-4-[2-[2-[2-[2-[2-[2-(2,5-dioxopyrrolidin-1-yl)oxy-2-oxo-ethoxy]ethoxy]ethylamino]-2-oxo-ethoxy]ethoxy]ethylamino]-4-oxo-butyl]amino]-18-oxo-octadecanoic acid (CAS 1217489-33-2)
- S-[N-(3-Phenylpropyl)(thiocarbamoyl)]-L-cysteine (CAS 137915-13-0)
- Methyl 2-Boc-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylate (CAS 851784-80-0)
- N-(2-(5-(Benzyloxy)-1H-indol-3-yl)ethyl)acetamide (CAS 68062-88-4)
- (S)-2-(3-(Benzyl(cyclopropyl)amino)pyrrolidin-1-yl)acetic acid (CAS 1354008-12-0)
- Neuropeptide AF (human) (CAS 192387-38-5)
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