Ethene, 1,1,2,2-tetrafluoro-, polymer with 1,1-difluoroethene CAS 25684-76-8
| CAS No. | 25684-76-8 |
| Molecular Formula | C2F4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethene, 1,1,2,2-tetrafluoro-, polymer with 1,1-difluoroethene (C2F4C2H2F2) contains fluorine 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.
Ethene, 1,1,2,2-tetrafluoro-, polymer with 1,1-difluoroethene (CAS 25684-76-8), molecular formula C2F4C2H2F2 and molecular weight 164.05 g/mol, is a CATO reference standard with documented purity and traceability.
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), Ethene, 1,1,2,2-tetrafluoro-, polymer with 1,1-difluoroethene 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 | C2F4 C2H2F2 |
| Molecular Weight | 164.05 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) | 1.0 |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | F-containing |
Related Ethene Standards
- 4,4'-(Ethene-1,2-diyl)dibenzoic acid (CAS 100-31-2)
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- (E)-5,5'-(Ethene-1,2-diyl)diisophthalic acid (CAS 1025726-44-6)
- 4,4'-(Ethene-1,2-diyl)bis(N,N-diphenylaniline) (CAS 116942-09-7)
- 6,6-(Ethene-1,2-diyl)bis-(3-nitrobenzenesulfonic acid) (CAS 128-42-7)
- 2,2',2'',2'''-((Ethene-1,1,2,2-tetrayltetrakis(benzene-4,1-diyl))tetrakis(oxy))tetraacetic acid (CAS 1306201-16-0)
- (Z)-4,4'-(Ethene-1,2-diyl)dibenzoic acid (CAS 133005-88-6)
- 4,4’,4’’,4’’’-(Ethene-1,1,2,2-tetrayl)tetrabenzoic Acid (CAS 1351279-73-6)
Recommended Standards
- 1-(2,2-Diethoxyethyl)-3-methoxyurea (CAS 116451-49-1)
- 1-(3,5-Difluoro-4-(hexyloxy)phenyl)-2,2,2-trifluoroethanone (CAS 1443305-28-9)
- N-(3-(3-Fluorophenyl)-2-(1H-pyrrol-1-yl)propyl)-2-methoxyacetamide (CAS 1421459-96-2)
- Evocalcet-D4 (CAS CATO-C4X-248511)
- Nintedanib Impurity 180 (CAS 2117628-65-4 (free base))
- ethyl 3-bromo-5-chloroimidazo[1,2-a]pyridine-2-carboxylate (CAS 1000018-03-0)
- 2-(3-Phenoxybenzoyl)pyridine (CAS 898779-86-7)
- Methyl 1-(phenylsulfonyl)-1H-indole-2-carboxylate (CAS 60376-48-9)
- Ornidazole Impurity 54 (CAS CATO-C4X-133154)
- [Ser39-OH] Tirzepatide (CAS CATO-C4X-324041)
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