1-Chloro-3-ethylbenzene CAS 620-16-6
| CAS No. | 620-16-6 |
| Molecular Formula | C8H9Cl |
| Molecular Weight | 140.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Chloro-3-ethylbenzene is closely related to chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-Chloro-3-ethylbenzene (CAS 620-16-6), molecular formula C8H9Cl and molecular weight 140.61 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H9Cl, 1-Chloro-3-ethylbenzene contains chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 140.61 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.
As a certified reference material (CRM), 1-Chloro-3-ethylbenzene 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 | C8H9Cl |
| Molecular Weight | 140.61 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Chloro Standards
Recommended Standards
- (S)-(1-Chloroethyl)benzene (CAS 3756-41-0)
- 1459-15-0 Benzene, (1-chloroethyl)-, (R)- (CAS 1459-15-0)
- 4-methylbenzyl chloride (CAS 104-82-5)
- prop-1-ene-2-sulfonyl chloride (CAS 874009-75-3)
- methyl 1-[2,6-dichloro-4-(trifluoromethyl)phenyl]-4-{2-[2,6-dichloro-4-(trifluoromethyl)phenyl]hydrazono}-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylate (CAS 259175-31-0)
- 2,4-Dimethyl-3-(2-methylphenyl)propiophenone (CAS 898789-52-1)
- 3-Hydroxy-2-(phosphonooxy)propanoic acid (CAS 2553-59-5)
- Methyl (2E)-3-{3-chloro-4-[(trifluoromethane)sulfonyloxy]phenyl}prop-2-enoate (CAS 862651-06-7)
- 6-Fluoro-4-(trifluoromethyl)pyridin-2-amine (CAS 56201-79-7)
- 3-(3,4-Dimethylphenoxy)-N-methylpropan-1-amine (CAS 915923-36-3)
- 6-chloro-4-nitro-1-[[2-(trimethylsilyl)ethoxy]methyl]-1H-Pyrrolo[2,3-b]pyridine (CAS 869335-22-8)
- 4-(3-Methyl-1,2,4-oxadiazol-5-yl)benzonitrile (CAS 728894-87-9)
- [4-(4,4-Bipiperidin-1-ylcarbonyl)phenyl]dimethylamine (CAS 1216635-36-7)
- Valosin Peptide (VQY), porcine (CAS 99510-37-9)
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