2,4-Dichloro-5-(prop-1-yn-1-yl)pyrimidine CAS 2582948-87-4
| CAS No. | 2582948-87-4 |
| Molecular Formula | C7H4Cl2N2 |
| Molecular Weight | 187.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,4-Dichloro-5-(prop-1-yn-1-yl)pyrimidine (CAS 2582948-87-4), molecular formula C7H4Cl2N2 and molecular weight 187.03 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,4-Dichloro-5-(prop-1-yn-1-yl)pyrimidine (C7H4Cl2N2) contains a nitrile group, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 187.03 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
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 | C7H4Cl2N2 |
| Molecular Weight | 187.03 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
- 4,7-Dichloro-1H-indazole (CAS 1000341-86-5)
- 5,7-Dichloro-1H-pyrrolo[2,3-c]pyridine, 97% (CAS 1001412-41-4)
- 2,5-Dichloro-4-methylpyridine-3-carbonitrile (CAS 101320-87-0)
- 3,4-Dichloro-1H-pyrrolo[3,2-c]pyridine (CAS 117332-47-5)
- 4,6-Dichloro-2-methylnicotinonitrile (CAS 1185190-81-1)
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- 3,7-Dichloro-1H-pyrrolo[2,3-c]pyridine (CAS 1190317-44-2)
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Recommended Standards
- 2-(Bromomethyl)phenol (CAS 58402-38-3)
- 2,4-Dichloro-6-methylnicotinonitrile (CAS 38367-36-1)
- 2-(5,6-dichloropyridin-3-yl)acetonitrile (CAS 54226-45-8)
- 2,5-Dichloro-6-methylnicotinonitrile (CAS 84703-17-3)
- 4-Amino-2,2′,5,5′-Tetrachlorobiphenyl (CAS 108736-09-0)
- 6-Ethyl-N2,N2-dimethyl-3,6-dihydro-1,3,5-triazine-2,4-diamine (CAS 791577-20-3)
- 3-(Trifluoromethyl)benzoic Acid (CAS 454-92-2)
- 2-(2-methyl-1,3-thiazol-5-yl)acetaldehyde (CAS 1378678-92-2)
- (Butan-2-yl)[(2,3-dichlorophenyl)methyl]amine hydrochloride (CAS 1158508-83-8)
- 3-Amino-N-(m-tolyl)propanamide hydrochloride (CAS 1220035-28-8)
- Linaclotide impurity 38 (CAS CATO-C4X-210638)
- 1-(Pyridin-3-yl)-3-azabicyclo[3.1.0]hexane (CAS 919106-12-0)
- 6-Bromo-2-(cyclopropylmethyl)pyridazin-3(2h)-one (CAS 1935299-64-1)
- Osteoblast-Adhesive Peptide (CAS 193613-75-1)
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