2,5-Dichloroterephthalonitrile CAS 1897-43-4
| CAS No. | 1897-43-4 |
| Molecular Formula | C8H2Cl2N2 |
| Molecular Weight | 197.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,5-Dichloroterephthalonitrile (C8H2Cl2N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2,5-Dichloroterephthalonitrile (CAS 1897-43-4) is a high-purity analytical reference standard with the molecular formula C8H2Cl2N2 and a molecular weight of 197.02 g/mol.
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.
CATO manufactures 2,5-Dichloroterephthalonitrile 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 | C8H2Cl2N2 |
| Molecular Weight | 197.02 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
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- 1-(2,2-Dichloroacetyl)pyrazolidin-3-one (CAS 303994-70-9)
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- 1-(3,4-Dimethylphenyl)cyclobutane-1-carboxylic acid (CAS 1260861-30-0)
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- 3-((5-Ethyl-1H-1,2,4-triazol-3-yl)thio)propanoic acid (CAS 723249-75-0)
- 6-(aminomethyl)-N,N-dimethylpyridin-2-amine (CAS 1060801-43-5)
- Endo-Gly29-Tirzepatide (CAS CATO-CPTD788685)
Why CATO?
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