3-Chloro-4-hydrazinylpyridine CAS 23589-59-5
| CAS No. | 23589-59-5 |
| Molecular Formula | C5H6ClN3 |
| Molecular Weight | 143.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Chloro-4-hydrazinylpyridine is closely related to a nitrile group, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Chloro-4-hydrazinylpyridine (CAS 23589-59-5), molecular formula C5H6ClN3 and molecular weight 143.57 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, chlorine substitution, 3-Chloro-4-hydrazinylpyridine is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 143.57 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C5H6ClN3 |
| Molecular Weight | 143.57 g/mol |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 5-Chloro-6-methylpyridin-2-ol (CAS 103997-23-5)
- N-(3-Chloro-phenyl)hydroxylamine (CAS 10468-17-4)
- (5-Chloro pyrazin-2-yl) Methanamine (CAS 1060814-53-0)
- 4-Chloro-3-methylpyridine 1-Oxide (CAS 1073-34-3)
- 2-Chloro-3-hydrazinylpyridine (CAS 117087-45-3)
- 5-Chloro-2-methylpyridin-4(1H)-one (CAS 1196157-19-3)
- 2-Chloro-1-(1H-pyrrol-3-yl)ethanone (CAS 122450-28-6)
- 3-Chloro-2-methylpyridin-4-ol (CAS 1227499-23-1)
Recommended Standards
- 3-Chloro-2,6-pyridinediamine (CAS 54903-85-4)
- 3-Chloro-4-methylpyridine 1-oxide (CAS 52313-60-7)
- 3-Chloro-1-methylpyridin-4(1h)-one (CAS 857201-58-2)
- 3-chloro-5,6-dimethyl-1,2,4-triazine (CAS 412923-53-6)
- 8-Bromo-2-chloro-3-methylquinoline (CAS 1342464-75-8)
- 5-Bromo-1-cyclopentyl-1H-1,2,4-triazole (CAS 1823431-73-7)
- 1-(2-(sec-Butoxy)ethoxy)butane (CAS 185143-90-2)
- 2-(4-Bromothiophen-2-yl)-2-(dimethylamino)acetic acid hydrochloride (CAS 1354949-52-2)
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- 6-Hydroxychroman-2-one (CAS 2669-94-5)
- 54640-82-3 Poly(2-Acrylamido-2-Methyl-1-Propanesulfonic Acid-CO-Acrylonitrile) (CAS 54640-82-3)
- benzyl (3S)-3-ethynylpiperidine-1-carboxylate (CAS 2816625-13-3)
- 2-(4-Fluorophenyl)-5,6-dimethoxyquinolin-4(1H)-one (CAS 1256037-27-0)
- Akt/SKG Substrate Peptide (CAS 276680-69-4)
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