5-Chlorobicyclo[4.2.0]octa-1,3,5-trien-7-one CAS 81447-63-4
| CAS No. | 81447-63-4 |
| Molecular Formula | C8H5ClO |
| Molecular Weight | 152.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Chlorobicyclo[4.2.0]octa-1,3,5-trien-7-one (CAS 81447-63-4), molecular formula C8H5ClO and molecular weight 152.58 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Chlorobicyclo[4.2.0]octa-1,3,5-trien-7-one (C8H5ClO) 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 152.58 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures 5-Chlorobicyclo[4.2.0]octa-1,3,5-trien-7-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H5ClO |
| Molecular Weight | 152.58 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.) | 1980 |
| Halogen Content | Cl-containing |
Related Chlorobicyclo Standards
- 4-Chlorobicyclo[4.2.0]octa-1,3,5-trien-7-amine (CAS 1781073-33-3)
- 2-Chlorobicyclo[2.2.1]hept-5-ene-2-carbonitrile (CAS 6945-87-5)
- 3-chlorobicyclo[3.2.1]oct-3-en-2-one (CAS 51145-45-0)
- 3-chlorobicyclo[1.1.1]pentane-1-carboxylic acid (CAS 156329-73-6)
- 3-chlorobicyclo[3.2.1]oct-3-en-2-ol (CAS 90003-08-0)
- 1-chlorobicyclo[2.2.2]octane (CAS 2064-03-1)
- 3-Chlorobicyclo[3.2.1]oct-2-ene (CAS 35242-17-2)
- 2-Chlorobicyclo[4.2.0]Octa-1,3,5-triene-7-carbonitrile (CAS 103447-24-1)
Recommended Standards
- 5-Chlorobenzofuran (CAS 23145-05-3)
- 5-Chloroimidazo[1,2-a]pyridine (CAS 63111-79-5)
- 5-Chloro-4-methylpicolinonitrile (CAS 886364-84-7)
- 6-Chloro-1H-pyrrolo[3,2-c]pyridine (CAS 74976-31-1)
- 4-Methylbiphenyl (CAS 644-08-6)
- 2-(3,4-Dimethoxyphenyl)cyclopropan-1-amine (CAS 61114-45-2)
- Phenazine-1,4-diol (CAS 1790-81-4)
- H-Val-NH2 (CAS 4540-60-7)
- 2-(4-Chlorophenyl)-1-(pyridin-4-yl)ethan-1-one (CAS 16273-84-0)
- Lacosamide EP Impurity I (CAS CATO-C4X-183048)
- (4-Chloro-2-methylphenyl)(4-chlorophenyl)methanamine (CAS 1335304-50-1)
- Tert-butyl 4-(2-(4-acetylphenoxy)ethyl)piperazine-1-carboxylate (CAS 1227954-75-7)
- 3-Methyl-2-(pyrrolidin-1-yl)-5-vinylpyridine (CAS 1355200-87-1)
- Semaglutide impurity 67 (CAS CATO-C4X-222667)
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