4-Chloro-2-ethynyl-1-methoxybenzene CAS 95186-47-3
| CAS No. | 95186-47-3 |
| Molecular Formula | C9H7ClO |
| Molecular Weight | 166.60 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.
CATO supplies 4-Chloro-2-ethynyl-1-methoxybenzene (CAS 95186-47-3), a certified reference material (molecular formula C9H7ClO, MW 166.60 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H7ClO, 4-Chloro-2-ethynyl-1-methoxybenzene 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 166.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 4-Chloro-2-ethynyl-1-methoxybenzene 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 | C9H7ClO |
| Molecular Weight | 166.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- Ethyl 4-Chloro-3-hydroxybutanoate (CAS 10488-69-4)
- 5-Chloro-3-methylbenzofuran (CAS 1125-41-3)
- 3-chloro-1aH,6H,6aH-indeno[1,2-b]oxirene (CAS 116540-88-6)
- 2-chloro-4-ethynyl-1-methoxybenzene (CAS 120136-29-0)
- 1-Chloro-2-ethynyl-4-methoxybenzene (CAS 1343921-70-9)
- 7-Chloro-5-methylbenzofuran (CAS 1388020-83-4)
- 1-Chloro-4-ethynyl-2-methoxybenzene (CAS 142475-68-1)
- 2-(2-Chloro ethoxy) Ethyl acetate (CAS 14258-40-3)
Recommended Standards
- 3-(Chloromethyl)benzofuran (CAS 67713-99-9)
- 4-Chloro-2-indanone (CAS 74124-90-6)
- 3-(4-Chlorophenyl)-2-propyn-1-ol (CAS 37614-57-6)
- 5-(chloromethyl)benzofuran (CAS 37798-07-5)
- 1-(4-Bromophenyl)-5-methyl-1h-pyrazole-4-carbaldehyde (CAS 1202029-61-5)
- Sodium Hexanoate-d11 (CAS 340257-58-1)
- 2-(carboxymethyl)-4-chlorobenzoic acid (CAS 63177-08-2)
- 3,3'-Oxybis(nitrobenzene) (CAS 38490-83-4)
- 2,4-Dichloro-alpha-ethyl-benzeneacetic acid (CAS 2012-76-2)
- 4-{4-[4-(4-methylphenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl]piperidine-1-carbonyl}benzonitrile (CAS 1775449-61-0)
- 20320-46-1 2-(4-Methylpiperazine-1-carbonyl)benzoic acid DTXSID20306298 (CAS 20320-46-1)
- 2-[(2-methylphenyl)amino]-1-(piperidin-1-yl)ethan-1-one (CAS 93865-41-9)
- 2-Hydrazinyl-4,5-dihydrothiazole (CAS 45439-41-6)
- Semaglutide impurity 248 (CAS CATO-C4X-2226248)
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