4'-Chlorophenyl acetylene 4-chlorophenylacetylene 1-chloro-4-phenylacetylene 1-chloro-4-ethynylbenzene 1-chloro-4-ethynyl-benzene 873-73-4 CAS 873-73-4
| CAS No. | 873-73-4 |
| Molecular Formula | C8H11Cl |
| Molecular Weight | 142.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4'-Chlorophenyl acetylene 4-chlorophenylacetylene 1-chloro-4-phenylacetylene 1-chloro-4-ethynylbenzene 1-chloro-4-ethynyl-benzene 873-73-4 (C8H11Cl) contains chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4'-Chlorophenyl acetylene 4-chlorophenylacetylene 1-chloro-4-phenylacetylene 1-chloro-4-ethynylbenzene 1-chloro-4-ethynyl-benzene 873-73-4 (CAS 873-73-4) is a high-purity analytical reference standard with the molecular formula C8H11Cl and a molecular weight of 142.63 g/mol.
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), 4'-Chlorophenyl acetylene 4-chlorophenylacetylene 1-chloro-4-phenylacetylene 1-chloro-4-ethynylbenzene 1-chloro-4-ethynyl-benzene 873-73-4 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 | C8H11Cl |
| Molecular Weight | 142.63 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Chlorophenyl Standards
- 3'-Chlorophenyl acetylene 1-chloro-3-ethynylbenzene 1-chloro-3-ethynyl-benzene 3-chloro-1-ethynylbenzene 3-chlorophenylacetylene 3'-chlorophenylacetylene 766-83-6 (CAS 766-83-6)
- (2-Chlorophenyl)hydrazine (CAS 10449-07-7)
- (3-Chlorophenyl)hydrazine (CAS 14763-20-3)
- N-(2-Chlorophenyl)hydroxylamine (CAS 10468-16-3)
- O-(2-chlorophenyl)hydroxylamine (CAS 99907-85-4)
- O-(3-chlorophenyl)hydroxylamine (CAS 74993-54-7)
- O-(4-chlorophenyl)hydroxylamine (CAS 36637-30-6)
- (3-Chlorophenyl)methanamine (CAS 4152-90-3)
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- Bambuterol Impurity 14 (CAS CATO-C4X-274614)
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