N-Benzylniacin (BPC-48, CAS 15990-43-9) is zwitterionic pyridinium betaine electroplating intermediate, mainly used as top brightener and leveler for alkaline zinc plating baths, both cyanide and cyanide-free systems. It refines zinc crystal grain, improves coating brightness and leveling performance. 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 Information

Product Name BPC-48

CAS Number 15990-43-9

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

Synonyms BPC48, 1-Benzyl-3-carboxylatopyridinium

Molecular Formula C₁₃H₁₁NO₂

Molecular Weight 213.23 g/mol

EINECS 240-129-1

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

Appearance Yellow to orange-yellow transparent liquid

Active Content 47~49%

pH Value 5.0–8.0

Solubility Fully miscible with water

Odor Slight characteristic odor

Stability Stable under normal storage, avoid strong oxidants and high temperature

Quality Specification

Use & Application

BPC-48 is key top brightener and leveling agent for alkaline zinc electroplating, applicable for cyanide zinc plating and cyanide-free alkaline zinc plating baths. It refines grain structure, delivers mirror bright zinc deposit and improves leveling at high current density area. Recommended dosage in plating bath:10–100 mg/L. It can be compounded with other plating additives to optimize plating formula.

Packing

Delivery & Storage

Delivery: Normal ambient transport, avoid strong sunlight and overheat. 

Storage: Store in cool, dry, well-ventilated warehouse. Keep container tightly closed, separate from oxidants. 

Shelf life: 24 months under proper sealed storage.