Pyridine hydrochloride
Synonym(s):Pyridinium chloride
- CAS NO.:628-13-7
- Empirical Formula: C5H5N.ClH
- Molecular Weight: 115.56
- MDL number: MFCD00012802
- EINECS: 211-027-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-29 18:28:35
What is Pyridine hydrochloride?
Chemical properties
white to tan crystals
The Uses of Pyridine hydrochloride
Pyridine Hydrochloride is the hydrochloride salt of pyridine, a basic six-membered heterocyclic ring. Pyridine is a base structure present in many biologically active compounds like the vitamins niaci n and pyridoxal. Pyridine is used in dehalogenation reactions and can be used as a base in condensation reactions.
The Uses of Pyridine hydrochloride
Pyridine Hydrochloride is the hydrochloride salt of pyridine, a basic six-membered heterocyclic ring. Pyridine is a base structure present in many biologically active compounds like the vitamins niacin and pyridoxal. Pyridine is used in dehalogenation reactions and can be used as a base in condensation reactions.
Preparation
Pyridine hydrochloride could be synthesized through the liquid-liquid synthesis method (pyridine and hydrochloric acid) and the gas-liquid synthesis method (pyridine and hydrogen chloride gas) respectively. The yield of the liquid-liquid synthesis method was 85% and the gas-liquid synthesis method was 92%.
Purification Methods
Crystallise the salt from CHCl3/EtOAc and wash it with Et2O. It is hygroscopic.[Beilstein 20 H 185, 20 I 57, 20 II 103, 20 III/IV 2230, 20/5 V 180.]
Properties of Pyridine hydrochloride
| Melting point: | 145-147 °C(lit.) |
| Boiling point: | 222-224 °C(lit.) |
| Density | 1.1182 (rough estimate) |
| refractive index | 1.5304 (estimate) |
| Flash point: | 222-224°C |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | ethanol: soluble50mg/mL, clear, colorless to light yellow |
| form | Crystals |
| color | White to tan |
| Water Solubility | 85 g/100 mL |
| Sensitive | Hygroscopic |
| BRN | 3615340 |
| Stability: | Hygroscopic |
| CAS DataBase Reference | 628-13-7(CAS DataBase Reference) |
| EPA Substance Registry System | Pyridine hydrochloride (628-13-7) |
Safety information for Pyridine hydrochloride
| Signal word | Warning |
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Pyridine hydrochloride
| InChIKey | AOJFQRQNPXYVLM-UHFFFAOYSA-N |
New Products
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