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52340

Sigma-Aldrich

Hexadecylpyridinium bromide

≥97.0%

Synonym(s):

Cetylpyridinium bromide

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About This Item

Empirical Formula (Hill Notation):
C21H38BrN
CAS Number:
140-72-7
Molecular Weight:
384.44
Beilstein:
3778948
EC Number:
205-428-3
MDL number:
MFCD00011988
UNSPSC Code:
12352005
PubChem Substance ID:
57651366
NACRES:
NA.22
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description

cationic

Quality Level

100

Assay

≥97.0%

mol wt

384.44 g/mol

technique(s)

titration: suitable

SMILES string

[Br-].CCCCCCCCCCCCCCCC[n+]1ccccc1

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

InChI key

DVBJBNKEBPCGSY-UHFFFAOYSA-M

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441655237052367
Hexadecylpyridinium bromide ≥97.0%

52340

Hexadecylpyridinium bromide

Dodecylethyldimethylammonium bromide ≥98.0% (AT)

44165

Dodecylethyldimethylammonium bromide

Hexadecyltrimethylammonium bromide ≥96.0% (AT)

52370

Hexadecyltrimethylammonium bromide

Hexadecyltrimethylammonium bromide suitable for ion pair chromatography, LiChropur™

52367

Hexadecyltrimethylammonium bromide

technique(s)

titration: suitable

technique(s)

ion chromatography: suitable, titration: suitable

technique(s)

UV/Vis spectroscopy: suitable, electrophoresis: suitable

technique(s)

ion pair chromatography: suitable

assay

≥97.0%

assay

≥98.0% (AT)

assay

≥96.0% (AT)

assay

≥99.0% (AT)

Quality Level

100

Quality Level

300

Quality Level

200

Quality Level

100

description

cationic

description

cationic

description

cationic

description

cationic

mol wt

384.44 g/mol

mol wt

322.37 g/mol

mol wt

364.45 g/mol

mol wt

average mol wt 62,000

General description

Hexadecylpyridinium bromide (HDPB) is a cationic surfactant with quaternary nitrogen located in the aromatic heterocyclic ring of the headgroup and a hydrocarbon tail consisting of 16 carbons. It has application in the polymerization reaction as well as in the extraction and preconcentration of ionic species.[1] [2]

Application

Hexadecylpyridinium bromide can be used as a cationic surfactant to:
  • Prepare a polyfluorate salt.[1]
  • Inhibit the corrosion of mild steel in acidic media.[3]

Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves
  • Specification Sheet

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    Certificates of Analysis (COA)

    Lot/Batch Number
    BCCH0053
    BCCH0051
    BCCF9869
    BCCD0313
    BCBZ9869

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