1-Chloro-1,2-Difluoroethane CAS 338-64-7
| CAS No. | 338-64-7 |
| Molecular Formula | C2H3ClF2 |
| Molecular Weight | 100.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Chloro-1,2-Difluoroethane (CAS 338-64-7) is a high-purity analytical reference standard with the molecular formula C2H3ClF2 and a molecular weight of 100.50 g/mol.
1-Chloro-1,2-Difluoroethane (C2H3ClF2) contains fluorine/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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C2H3ClF2 |
| Molecular Weight | 100.50 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F/Cl-containing |
Related Chloro Standards
- 2-Chloro-1,1-difluoroethane (CAS 338-65-8)
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Recommended Standards
- V561V90BG2 7601-90-3 UNII-V561V90BG2 Perchloric acid, not >50% acid, by mass Perchloric acid, >50% but not >72% acid, by mass Perchloric acid, >72% acid by mass Perchloric acid Perchloric acid, >72% acid by mass [Forbidden] Perchloric acid, >50% but not >72% acid, by mass [UN1873] [Oxidizer, Corrosive] Perchloric acid, not >50% acid, by mass [UN1802] [Corrosive, Oxidizer] UN1802 UN1873 EINECS 231-512-4 HSDB 1140 EC 231-512-4 (CAS 7601-90-3)
- Tetramethylsilane-d12 (CAS 18145-38-5)
- Freon #142b (CAS 75-68-3)
- n-Hexane-d14 (reagent grade) (CAS 21666-38-6)
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- Brucein C (CAS 25514-30-1)
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- Xenopsin-Related Peptide 2 (XP-2) (H-9340.0005) (CAS 117442-29-2)
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