3-chloro-5-fluoro-pyridine CAS 514797-99-0
| CAS No. | 514797-99-0 |
| Molecular Formula | C5H9ClFN |
| Molecular Weight | 137.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-chloro-5-fluoro-pyridine (CAS 514797-99-0), molecular formula C5H9ClFN and molecular weight 137.58 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-chloro-5-fluoro-pyridine (C5H9ClFN) contains fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 137.58 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C5H9ClFN |
| Molecular Weight | 137.58 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related chloro Standards
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Recommended Standards
- 2-Chlorobenzonitrile (CAS 873-32-5)
- 3-Chlorobenzonitrile (CAS 766-84-7)
- 1-Amino-5-chloropentan-2-ol (CAS 94157-97-8)
- 4-Chlorobenzonitrile (CAS 623-03-0)
- N-(4-Ethoxy-6-methyl-1,3,5-triazin-2-yl)cyanamide (CAS 103008-71-5)
- 7-(Bromomethyl)-2-naphthonitrile (CAS 135942-98-2)
- 2-(4-(tert-Butyl)phenoxy)-1-cyclopropylethanamine hydrochloride (CAS 1379811-73-0)
- N-(2-cyanopropan-2-yl)furan-2-carboxamide (CAS 328022-70-4)
- Caudatin (CAS 38395-02-7)
- 2-Bromo-4-fluoro-5-methylbenzenesulfonyl Chloride (CAS 874804-16-7)
- Ethyl 3-hydroxypyrrolidine-1-carboxylate (CAS 93591-91-4)
- PDI45 (CAS 110613-98-4)
- 3505-67-7 AR-1J0014 ethyl prop-2-enoate; 2-methylenehexanoic acid; methyl 2-methylprop-2-enoate; styrene (CAS 3505-67-7)
- Liraglutide(8-31)TFA Salt (CAS CATO-C4X-19922)
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