243086

Pyridine hydrochloride

98%

• Synonym(s): Pyridinium chloride
• Empirical Formula (Hill Notation): C₅H₅N · HCl
• CAS Number: 628-13-7
• Molecular Weight: 115.56
• Beilstein/REAXYS Number: 3615340
• EC Number: 211-027-4
• MDL number: MFCD00012802
• UNSPSC Code: 12352100
• eCl@ss: 39151701
• PubChem Substance ID: 24854598
• NACRES: NA.22

Properties

• Quality Level: 200
• assay: 98%
• bp: 222-224 °C (lit.)
• mp: 145-147 °C (lit.)
• solubility: ethanol: soluble 50 mg/mL, clear, colorless to light yellow
• SMILES string: Cl[H].c1ccncc1
• InChI: 1S/C5H5N.ClH/c1-2-4-6-5-3-1;/h1-5H;1H
• InChI key: AOJFQRQNPXYVLM-UHFFFAOYSA-N

Description

General description

Pyridine hydrochloride is an acidic type demethylating agent used as a catalyst in deprotection of aromatic methyl ethers.

Application

Pyridine hydrochloride (pyridine hydrochloride) was used in the demethylation of 4,5-dimethyl-7-methoxy-1-tetralone.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H302,H315,H319
• pcodes: P264 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 - P332 + P313
• Hazard Classifications: Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• ppe: dust mask type N95 (US), Eyeshields, Gloves