1-Chloro-3-(prop-2-yn-1-yloxy)benzene CAS 33302-52-2
| CAS No. | 33302-52-2 |
| Molecular Formula | C9H7ClO |
| Molecular Weight | 166.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-Chloro-3-(prop-2-yn-1-yloxy)benzene 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.
1-Chloro-3-(prop-2-yn-1-yloxy)benzene (CAS 33302-52-2), molecular formula C9H7ClO and molecular weight 166.60 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-Chloro-3-(prop-2-yn-1-yloxy)benzene (C9H7ClO) contains a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 166.60 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.) | 1966 |
| 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
- 1-(4-Chlorophenyl)prop-2-en-1-one (CAS 7448-87-5)
- 1-Chloro-3-ethynyl-2-methoxybenzene (CAS 2228704-35-4)
- 1-(4-Chlorophenyl)-2-propyn-1-ol (CAS 29805-11-6)
- 1-Chloro-3-ethynyl-5-methoxybenzene (CAS 556112-23-3)
- 1-Chloro-3-(pyridin-4-yl)propan-2-one hydrochloride (CAS 1188264-08-5)
- methyl 1,2,5-oxadiazole-3-carboxylate (CAS 148122-20-7)
- 2,2-Difluorobut-3-en-1-ol (CAS 182439-31-2)
- 5-(Benzofuran-2-yl)-1,3,4-oxadiazol-2(3H)-one (CAS 78620-33-4)
- 2-((7-Cyano-3,4-dihydro-2H-1,4-ethano-1,5-naphthyridin-6-yl)thio)-N-(3-fluorophenyl)acetamide (CAS 728885-86-7)
- 4-Hydroxy-DL-proline (CAS 6912-67-0)
- 2-(4-Cyclopropylpiperazin-1-yl)ethan-1-ol (CAS 944691-70-7)
- 5-Cyclopentyl-1H-pyrazole-3-carboxylic acid (CAS 521300-21-0)
- (E)-N-Mesityl-4-(5-(4-methylbenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)butanamide (CAS 6605-21-6)
- Semaglutide impurity 57 (CAS 2773558-06-6)
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