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1-Hexadecylpyridinium bromide

CAS No.
140-72-7
Chemical Name:
1-Hexadecylpyridinium bromide
Synonyms
HEXADECYLPYRIDINIUM BROMIDE;CETYLPYRIDINIUM BROMIDE;Hexadecylpyridinium Bromide Hydrate;bromocet;hexadecylpyridine bromide;N-HEXADECYLPYRIDINIUM BROMIDE;tspb;cetasol;cetazol;seprisan
CBNumber:
CB0322113
Molecular Formula:
C21H38BrN
Molecular Weight:
384.44
MDL Number:
MFCD00011988
MOL File:
140-72-7.mol
MSDS File:
SDS
Last updated:2026-01-13 11:12:55
Product description Number Pack Size Price
Hexadecylpyridinium bromide ≥97.0% 52340 100g $99.9
Hexadecylpyridinium Bromide Hydrate >96.0%(HPLC)(T) H0162 25g $27
Hexadecylpyridinium Bromide Hydrate >96.0%(HPLC)(T) H0162 500g $203
1-Hexadecylpyridiniumbromide JK113112 500g $399
1-HEXADECYLPYRIDIN-1-IUM BROMIDE 95.00% CHM0018000 1MG $586.97
More product size

1-Hexadecylpyridinium bromide Properties

Melting point 63-69 °C
storage temp. Inert atmosphere,Room Temperature
solubility soluble in Chloroform,Methanol,Acetone,Ethanol
form powder to crystal
color White to Almost white
Water Solubility 5 g/L (20 ºC)
BRN 3778948
InChI InChI=1S/C21H38N.BrH/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-16-19-22-20-17-15-18-21-22;/h15,17-18,20-21H,2-14,16,19H2,1H3;1H/q+1;/p-1
InChIKey DVBJBNKEBPCGSY-UHFFFAOYSA-M
SMILES [N+]1(CCCCCCCCCCCCCCCC)C=CC=CC=1.[Br-]
LogP 1.699 (est)
CAS DataBase Reference 140-72-7(CAS DataBase Reference)
FDA UNII O77BKZ14DE
EPA Substance Registry System Cetylpyridinium bromide (140-72-7)
UNSPSC Code 12352005
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS06
Signal word  Danger
Hazard statements  H302-H315-H319-H330-H335-H413
Precautionary statements  P260-P273-P301+P312-P302+P352-P304+P340+P310-P305+P351+P338
target organs Respiratory system
PPE Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard Codes  T+,Xi,Xn
Risk Statements  22-26-36/37/38-20/21/22
Safety Statements  26-28-36/37-45-36/37/39-22-36
RIDADR  2811
WGK Germany  3
RTECS  UU4848000
TSCA  TSCA listed
HazardClass  6.1(b)
PackingGroup  III
HS Code  29333999
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
Hazard Classifications Acute Tox. 2 Inhalation
Acute Tox. 4 Oral
Aquatic Acute 1
Eye Dam. 1
Skin Irrit. 2
STOT SE 3
Hazardous Substances Data 140-72-7(Hazardous Substances Data)
Toxicity mouse,LD50,unreported,126mg/kg (126mg/kg),Pharmazie. Vol. 40, Pg. 273, 1985.
NFPA 704
1
4 0

1-Hexadecylpyridinium bromide price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 52340 Hexadecylpyridinium bromide ≥97.0% 140-72-7 100g $99.9 2025-07-31 Buy
TCI Chemical H0162 Hexadecylpyridinium Bromide Hydrate >96.0%(HPLC)(T) 140-72-7 25g $27 2025-07-31 Buy
TCI Chemical H0162 Hexadecylpyridinium Bromide Hydrate >96.0%(HPLC)(T) 140-72-7 500g $203 2025-07-31 Buy
Frontier Specialty Chemicals JK113112 1-Hexadecylpyridiniumbromide 140-72-7 500g $399 2021-12-16 Buy
American Custom Chemicals Corporation CHM0018000 1-HEXADECYLPYRIDIN-1-IUM BROMIDE 95.00% 140-72-7 1MG $586.97 2021-12-16 Buy
Product number Packaging Price Buy
52340 100g $99.9 Buy
H0162 25g $27 Buy
H0162 500g $203 Buy
JK113112 500g $399 Buy
CHM0018000 1MG $586.97 Buy

1-Hexadecylpyridinium bromide Chemical Properties,Uses,Production

Description

1-Hexadecylpyridinium bromide is a cationic surfactant capable of bactericidal activity and has been used for ion exchange. As a bactericidal agent, it reduces the surface tension between pathogenic membranes and their environments. This interaction disrupts membrane integrity and osmoregulation, leading to cell lysis. It has also been shown to quickly and efficiently remove metal ions from solutions. The compound removes cations from the solution through a cation/surfactant complex, which precipitates from an aqueous phase into an organic phase and can subsequently be extracted. It is an effective ion exchange agent for extracting DNA and proteins.

Chemical Properties

white to cream coloured powder

Uses

Hexadecylpyridinium bromide (HDPB) is a biochemical assay reagent.

Definition

ChEBI: A pyridinium salt that has N-hexadecylpyridinium as the cation and bromide as the anion.

Synthesis

Pyridine

110-86-1

1-Bromohexadecane

112-82-3

1-Hexadecylpyridinium bromide

140-72-7

General method: 1-bromohexadecane (0.01 mol) and pyridine (0.011 mol) were added sequentially to 25 mL of anhydrous acetonitrile and heated to reflux for 24 hours. Upon completion of the reaction, the solvent was removed by evaporation, the residue was co-evaporated with benzene to remove residual water, and finally the N-hexadecyl pyridine bromide salt was recrystallized from acetone.

References

[1] Molecules, 2010, vol. 15, # 3, p. 1967 - 1972
[2] Green Chemistry, 2009, vol. 11, # 1, p. 83 - 90
[3] European Journal of Medicinal Chemistry, 2013, vol. 66, p. 46 - 55
[4] Hoppe-Seyler's Zeitschrift fuer Physiologische Chemie, 1952, vol. 291, p. 1,4
[5] Journal of the American Pharmaceutical Association (1912-1977), 1942, vol. 31, p. 51

1-Hexadecylpyridinium bromide Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 436)Suppliers
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LANZHOU DAYUAN NEW MATERIAL TECHNOLOGY CO.,LTD
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View Lastest Price from 1-Hexadecylpyridinium bromide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1-Hexadecylpyridinium bromide pictures 2026-02-13 1-Hexadecylpyridinium bromide
140-72-7
US $0.00 / KG 1KG 98%min 30tons/month WUHAN FORTUNA CHEMICAL CO., LTD
1-Hexadecylpyridinium bromide pictures 2026-01-30 1-Hexadecylpyridinium bromide
140-72-7
US $1.00 / KG 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
1-Hexadecylpyridinium bromide  pictures 2025-11-18 1-Hexadecylpyridinium bromide
140-72-7
US $1.10 / g 1g 99.00% 100 Tons Min Dideu Industries Group Limited
CETYLPYRIDINIUM BROMIDE hexadecylpyridine bromide HEXADECYLPYRIDINIUM BROMIDE 1-HEXADECYLPYRIDINUM BROMIDE 1-HEXADECYLPYRIDINIUM BROMIDE 1-Hexadecylpyridinium HexadecylpyridiniumBromideMono N-HEXADECYLPYRIDINIUM BROMIDE 1-cetylpyridiniumbromide 1-hexadecyl-pyridiniubromide acetoquatcpb bromocet cetapharm cetasol cetazol cetylpyridiumbromide morpancbp n-cetylpyridiniumbromide nitrogenol Pyridinium,1-hexadecyl-,bromide seprisan sterogenol tspb Bromohexadecyl pyridine CETYLPYRIDINIUM BROMIDE CRYSTALLINE Ceetylpyridiniumbromide CETYL (N-HEXADECYL) PYRIDINIUM BROMIDE MONOHYDRATE PALMITYLPYRIDINIUM BROMIDE Hexadecylpyridinium Bromide Hydrate 1-Hexadecylpyridinium bromide,98% CETYLPYRIDINIUM BROMIDE pure 1-Hexadecylpyridin-1-ium bromide HexadecylpyridiniuM BroMide  HexadecylpyridiniuM broMid HexadecylpyridiniuM broMide >=97.0% Sixteenalkyl pyridinebroMide Hexadecyl pyridine broMide generation [C16Py]Br HexadecylpyridiniumBromideHydrate> Cetylpyridine bromide 1-Hexadecylpyridinium bromide ISO 9001:2015 REACH Cetylpyridinium Bromide (CPB) pure, 98% Bromocedecylpyridine (1-Hexadecyl)pyridinium bromide mono 140-72-7 140-72-2 C21H38BrNC21H38NBr C21H38BrNxH2O C21H38NBr C16H32BrC5H4N Cationic Surfactants Heterocyclic Quarternary Ammonium Salts (Surfactants) Pyridinium Compounds Surfactants Heterocyclic Ammonium Salts Detergents Phase Transfer Catalysts Synthetic Reagents