1-Benzylpyridinium-3-carboxylate BPC-48% (CAS 15990-43-9, N-Benzylniacin) is an inner salt quaternary pyridinium derivative of nicotinic acid. It is widely used as primary brightener and leveler for alkaline zinc electroplating baths, effectively refining grain and improving brightness of zinc coating. TNJ Chemical is the leading manufacturer and exporter since from 2001. We guarantee high quality, competitive price, stable supply, fast delivery and tech support etc. To find more, please contact sales@tnjchem.com

Product Name 1-Benzylpyridinium-3-carboxylate

CAS Number 15990-43-9

IUPAC Name 1-benzylpyridin-1-ium-3-carboxylate

Synonyms N-Benzylniacin, BPC-48, 1-Benzyl-3-carboxylatopyridinium

Molecular Formula C₁₃H₁₁NO₂

Molecular Weight 213.23 g/mol

SMILES C1=CC=C(C=C1)C[N+]2=CC=CC(=C2)C(=O)[O-]

Appearance White to off-white solid at ambient temperature. Industrial grade commonly appears as clear yellow to reddish-brown transparent liquid (such as BPC-48 specification).

Solubility Freely soluble in water, soluble in methanol

Stability Stable under normal conditions, avoid strong oxidants

Odor Faint characteristic odor

Density ~1.09 g/cm³

Quality Specification (industrial grade BPC-48%)

Use & Application

Main brightener and leveler for alkaline zinc plating and zinc-nickel alloy electroplating baths, applicable in cyanide and cyanide-free zinc plating systems. It helps refine metal grain, enhance surface brightness and leveling performance of deposited zinc layer. Also used as organic synthesis intermediate and biochemical research reagent. Recommended dosage in plating bath:10–100 mg/L.

Packing

Standard packing: 1kg /5kg /25kg aluminium foil bag or fibre drum with inner PE bag. 

Custom packing available upon request.

Delivery & Storage

Delivery: Normal ambient transport, avoid strong sunlight and high temperature. 

Storage: Store in cool, dry, dark, well-ventilated warehouse. Seal tightly, separate from oxidants. 

Shelf life: 24 months under proper sealed storage.