5-Chloro-2,3-dihydro-1-benzofuran CAS 76429-69-1
| CAS No. | 76429-69-1 |
| Molecular Formula | C8H7ClO |
| Molecular Weight | 154.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies 5-Chloro-2,3-dihydro-1-benzofuran (CAS 76429-69-1), a certified reference material (molecular formula C8H7ClO, MW 154.59 g/mol) for analytical method development and quality control.
5-Chloro-2,3-dihydro-1-benzofuran (C8H7ClO) contains a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C8H7ClO |
| Molecular Weight | 154.59 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 4-Chloro-3-methylbenzaldehyde (CAS 101349-71-7)
- 5-Chloro-1,3-dihydroisobenzofuran (CAS 1013915-43-9)
- 3-Chloro-5-methylbenzaldehyde (CAS 103426-20-6)
- 1-Chloro-4-(vinyloxy)benzene (CAS 1074-56-2)
- 7-Chloro-2,3-dihydrobenzofuran (CAS 1174005-71-0)
- 3-Chloro-2-vinylphenol (CAS 145706-55-4)
- 2-Chloro-5-methylbenzaldehyde (CAS 14966-09-7)
- 1-chloro-3-(2-hydroxyethoxy)propan-2-ol (CAS 18371-74-9)
Recommended Standards
- 4-Chloro-2-methylbenzaldehyde (CAS 40137-29-9)
- 5-Chloro-2-methylbenzaldehyde (CAS 58966-34-0)
- 4-Chloro-2,3-dihydrobenzofuran (CAS 289058-20-4)
- 6-Chloro-2,3-dihydrobenzofuran (CAS 289058-21-5)
- 1,3-Bis(pyridin-3-ylmethyl)thiourea (CAS 6965-01-1)
- 5-Phenyl-5,8-dihydroindolo[2,3-c]carbazole (CAS 1637752-63-6)
- 2,2,2-trifluoroethyl 2,3-dimethylphenylcarbamate (CAS 1087788-57-5)
- (3,4-Difluorophenyl)(4-(thiophen-3-yl)piperidin-1-yl)methanone (CAS 1396746-20-5)
- 2,4,4',5-Tetrabromodiphenyl Ether (CAS 446254-42-8)
- (2-(Tert-butyl)-5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-8-yl)methanamine (CAS 1365939-45-2)
- 2-(2-fluoro-3-nitro-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1189042-70-3)
- (R)-2-Amino-3-(2,5-difluorophenyl)propanoicacid (CAS 266360-61-6)
- 4-Chloro-6,8-diiodoquinazoline (CAS 98436-53-4)
- Semaglutide impurity 101 (CAS CATO-C4X-2226101)
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