5-Chloro-2,2-difluoro-1,3-benzodioxole CAS 72769-08-5
| CAS No. | 72769-08-5 |
| Molecular Formula | C7H3ClF2O2 |
| Molecular Weight | 192.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H3ClF2O2, 5-Chloro-2,2-difluoro-1,3-benzodioxole contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 192.55 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 5-Chloro-2,2-difluoro-1,3-benzodioxole (CAS 72769-08-5), a certified reference material (molecular formula C7H3ClF2O2, MW 192.55 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), 5-Chloro-2,2-difluoro-1,3-benzodioxole 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 | C7H3ClF2O2 |
| Molecular Weight | 192.55 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | F/Cl-containing |
Related Chloro Standards
- 2-Chloro-4,5-difluorobenzoic acid (CAS 110877-64-0)
- 4-Chloro-3,5-difluorobenzoic Acid (CAS 1160573-19-2)
- 5-Chloro-2,3-difluorobenzoic acid (CAS 1227270-64-5)
- 2-Chloro-4,6-difluorobenzoic acid (CAS 1242339-67-8)
- 3-Chloro-2,5-difluorobenzoic acid (CAS 1261629-01-9)
- 5-Chloro-2,4-difluorobenzoic Acid (CAS 130025-33-1)
- 4-Chloro-2,5-difluorobenzoic acid; (CAS 132794-07-1)
- 2-Chloro-3,4-difluorobenzoic Acid (CAS 150444-93-2)
Recommended Standards
- 4-Chloro-2,3-difluoro-5-hydroxybenzaldehyde (CAS 2056110-34-8)
- 6-Chloro-2,3-difluorobenzoic acid (CAS 887584-84-1)
- 3-Chloro-2,6-difluorobenzoic acid (CAS 225104-76-7)
- 1-(2-Chloroacetyl)-5-hydroxyimidazolidine-2,4-dione (CAS 124443-51-2)
- 5''-(4'-Amino-[1,1'-biphenyl]-4-yl)-[1,1':4',1'':3'',1''':4''',1''''-quinquephenyl]-4,4''''-diamine (CAS 1400987-00-9)
- 1-nitro-4-(2-nitroethenyl)benzene (CAS 3156-41-0)
- (S,S)-Me-Bisbox (CAS 336884-31-2)
- 1-Ethyl-4-(p-tolyl)piperidin-4-ol (CAS 86310-83-0)
- Methyl 5-bromo-2-(3-ethylureido)benzoate (CAS 433253-62-4)
- n-[2-(pyrrolidin-1-yl)ethyl]aniline (CAS 36716-44-6)
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- (3-Cyclobutylisoxazol-4-yl)methanamine (CAS 1501681-14-6)
- (R)-2-(tert-butoxycarbonyl)isoindoline-1-carboxylic acid (CAS 1212086-74-2)
- Semaglutide Impurity 129 (CAS 2490269-79-7)
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