Product Name

  • Name

    Cetylpyridinium chloride

  • EINECS 204-593-9
  • CAS No. 123-03-5
  • Article Data18
  • CAS DataBase
  • Density 0.9362 (rough estimate)
  • Solubility insoluble in acetone, acetic acid, or ethanol
  • Melting Point 77 °C
  • Formula C21H38ClN
  • Boiling Point 496.25°C (rough estimate)
  • Molecular Weight 339.992
  • Flash Point
  • Transport Information
  • Appearance white powder or crystals
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 123-03-5 (Cetylpyridinium chloride)
  • Hazard Symbols
  • Synonyms cetylpyridinium chloride anhydrous;Biosept;Cetyl-pyridinium chloride;Ceepryn Chloride;Cetamium;Swabettes Hoechst;Intexsan CPC;CPC;Aktivex;hexadecylpyridinium chloride;Pyridinium, 1-hexadecyl-, chloride;Tserigel;Dobendan;Cetafilm;Ammonyx CPC;Pyridinium,1-hexadecyl-,chloride;Ceprim;Pyrisept;Cepacol chloride;1-Hexadecyl-pyridinium;Newkalgen B 651P;Merocet;Merothol;Quaternario CPC;1-hexadecylpyridine chloride;Pristacin;1-cetylpyridinium chloride;Cepacol;Acetoquat CPC;N-hexadecylpyridinium chloride;N-cetylpyridinium chloride;1-palmitylpyridinium chloride;1-hexadecylpyridinium chloride;
  • PSA 3.88000
  • LogP 3.45940

Synthetic route

pyridine
110-86-1

pyridine

1-Chlorohexadecan
4860-03-1

1-Chlorohexadecan

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

pyridine
110-86-1

pyridine

hexadecanyl bromide
112-82-3

hexadecanyl bromide

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

Conditions
ConditionsYield
In water at 95 - 102℃; for 30h;180 g
pyridine
110-86-1

pyridine

hexadecyl dichlorophosphinate
58527-29-0

hexadecyl dichlorophosphinate

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

Conditions
ConditionsYield
With 2-(Diethylamino)ethanol at 0 - 20℃; for 3h;
4-(4-Dimethylamino-phenylazo)-benzenesulfonate1-hexadecyl-pyridinium;

4-(4-Dimethylamino-phenylazo)-benzenesulfonate1-hexadecyl-pyridinium;

A

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

B

methyl orange
547-58-0

methyl orange

Conditions
ConditionsYield
With sodium chloride at 19.9℃; Equilibrium constant; var. temps.;
cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

sodium 4-aminobenzenesulfonylacetamide
127-56-0

sodium 4-aminobenzenesulfonylacetamide

hexadecylpyridinium sulfacetamide
934544-27-1

hexadecylpyridinium sulfacetamide

Conditions
ConditionsYield
In water for 0.5h; Heating / reflux;99.22%
cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

Penicillin G potassium
113-98-4

Penicillin G potassium

hexadecylpyridinium penicillin G
934590-94-0

hexadecylpyridinium penicillin G

Conditions
ConditionsYield
In water for 0.5h;99%
potassium (+)-(R)-2-(4-chloro-2-methylphenoxy)propionate
66423-05-0

potassium (+)-(R)-2-(4-chloro-2-methylphenoxy)propionate

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

1-hexadecylpyridinium (+)-(R)-2-(4-chloro-2-methylphenoxy)propionate
1354726-00-3

1-hexadecylpyridinium (+)-(R)-2-(4-chloro-2-methylphenoxy)propionate

Conditions
ConditionsYield
In acetone at 19.84℃; for 1.5h;99%
cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

sodium 1,4-dihexyl sulfosuccinate
3006-15-3

sodium 1,4-dihexyl sulfosuccinate

hexadecylpyridinium Cola wet MA-80
934544-30-6

hexadecylpyridinium Cola wet MA-80

Conditions
ConditionsYield
In water for 0.5h;96.93%
3,6-dichloro-2,5-dihydroxy-1,4-benzoquinone
87-88-7

3,6-dichloro-2,5-dihydroxy-1,4-benzoquinone

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

bis(hexadecylpyridinium) bis(3,6-dichloro-4,5-dihydroxy-3,5-cyclohexadiene-1,2-dionato-κ(2)O(4),O(5))beryllium

bis(hexadecylpyridinium) bis(3,6-dichloro-4,5-dihydroxy-3,5-cyclohexadiene-1,2-dionato-κ(2)O(4),O(5))beryllium

Conditions
ConditionsYield
With hydroxyberyllate complex In water C6H2Cl2O4 (stoich amt.) addn. to hydroxyberyllate complex (aq.) at 343 K, staying for 3 h at water-bath, filtering, addn. to pyridinium salt with strong agitation; washing, extn. (ethyl acetate), organic phase drying (Na2SO4), solvent evapn.;95%
cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

saccharin sodium salt
128-44-9

saccharin sodium salt

hexadecylpyridinium saccharinate
7428-34-4

hexadecylpyridinium saccharinate

Conditions
ConditionsYield
In water at 60℃; for 1h;95%
sulfathiazole sodium

sulfathiazole sodium

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

sulfanilic acid thiazol-2-ylamide; 1-hexadecyl-pyridinium salt

sulfanilic acid thiazol-2-ylamide; 1-hexadecyl-pyridinium salt

Conditions
ConditionsYield
In water at 20℃; for 1h;77.22%
cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

sodium valproate
1069-66-5

sodium valproate

hexadecylpyridinium valproic acid
934544-54-4

hexadecylpyridinium valproic acid

Conditions
ConditionsYield
In water at 20℃; for 1h;77.14%
cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

ampicillin
69-53-4

ampicillin

(2S,5R,6R)-6-(R-2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylate cetylpyridinium

(2S,5R,6R)-6-(R-2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylate cetylpyridinium

Conditions
ConditionsYield
Stage #1: cetylpyridinium chloride With Amberlite IRA-400-OH In methanol
Stage #2: ampicillin With ammonium In methanol at 20℃; for 1h;
76.4%
potassium perrhenate
10466-65-6

potassium perrhenate

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

potassium thioacyanate
333-20-0

potassium thioacyanate

2CH3(CH2)15NC5H5(1+)*ReOCl(NCS)4(2-)=(CH3(CH2)15NC5H5)2ReOCl(NCS)4

2CH3(CH2)15NC5H5(1+)*ReOCl(NCS)4(2-)=(CH3(CH2)15NC5H5)2ReOCl(NCS)4

Conditions
ConditionsYield
With hydroquinone; HCl In acetic acid; butanone ketonic extract of H2ReOCl4 (prepared from KReO4, concd. HCl, hydroquinone), addn. of KSCN in acetone, green soln., mixed with acidified MgCl2 soln., shaken with butan-2-one, evapn. of ketone extract, dilution (acetic acid), mixed with the pyridinium; pptn., filtration, washing (acetic acid, then petroleum ether), recrystn. (acetone), elem. anal.;75%
cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

europium(III) chloride
10025-76-0

europium(III) chloride

1,3-diphenylpropanedione
120-46-7

1,3-diphenylpropanedione

C5H5NC16H33(1+)*Eu(C15H11O2)4(1-)=C5H5NC16H33{Eu(C15H11O2)4}

C5H5NC16H33(1+)*Eu(C15H11O2)4(1-)=C5H5NC16H33{Eu(C15H11O2)4}

Conditions
ConditionsYield
With sodium hydroxide In ethanol recrystn. from 1:1 acetone/2-butanone;74%
With NaOH In ethanol recrystn. from 1:1 acetone/2-butanone;74%
potassium tetracarbonylcobaltate
14878-26-3

potassium tetracarbonylcobaltate

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

C16H33NC5H5(1+)*Co(CO)4(1-)=(C16H33NC5H5)(Co(CO)4)
957468-15-4

C16H33NC5H5(1+)*Co(CO)4(1-)=(C16H33NC5H5)(Co(CO)4)

Conditions
ConditionsYield
In dichloromethane; water under Ar atm. aq. soln. KCo(CO)4 was added to aq. soln. pyridinium salt,CH2Cl2 was added, stirred for 20 min; org. phase was washed with water, dried over MgSO4, filtered, evapd. in vacuo, recrystn. fronm CH2Cl2-petroleum ether; elem. anal.;74%
MCPA
94-74-6

MCPA

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

1-hexadecylpyridinium (4-chloro-2-methylphenoxy)acetate
1082249-15-7

1-hexadecylpyridinium (4-chloro-2-methylphenoxy)acetate

Conditions
ConditionsYield
With potassium hydroxide In water at 39.84℃; for 24h;74%
phosphotungstic acid

phosphotungstic acid

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

C21H38N(1+)*PW4O24(1-)

C21H38N(1+)*PW4O24(1-)

Conditions
ConditionsYield
Stage #1: phosphotungstic acid With dihydrogen peroxide In water at 20℃; for 2h; Green chemistry;
Stage #2: cetylpyridinium chloride In ethanol; water at 40℃; Green chemistry;
73.6%
cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

C21H38N(1+)*ClI2(1-)

C21H38N(1+)*ClI2(1-)

Conditions
ConditionsYield
With iodine In chloroform70%
hydroxygallium naphthalocyaninetetrasulfonic acid

hydroxygallium naphthalocyaninetetrasulfonic acid

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

4C21H38N(1+)*C48H21GaN8O13S4(4-)

4C21H38N(1+)*C48H21GaN8O13S4(4-)

Conditions
ConditionsYield
In methanol; water Heating / reflux;67%
hydroxygallium naphthalocyaninetetrasulfonic acid

hydroxygallium naphthalocyaninetetrasulfonic acid

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

C21H38N(1+)*C48H21GaN8O13S4(4-)

C21H38N(1+)*C48H21GaN8O13S4(4-)

Conditions
ConditionsYield
In methanol; water67%
9Na(1+)*[ErW10O36](9-)=Na9[ErW10O36]

9Na(1+)*[ErW10O36](9-)=Na9[ErW10O36]

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

7[CH3(CH2)15NC5H5](1+)*2H(1+)*[ErW10O36](9-)=[CH3(CH2)15NC5H5]7H2[ErW10O36]

7[CH3(CH2)15NC5H5](1+)*2H(1+)*[ErW10O36](9-)=[CH3(CH2)15NC5H5]7H2[ErW10O36]

Conditions
ConditionsYield
In water addn. of a soln. of cetylpyridinium chloride in water to a soln. of tungstate in water; filtration, washing with water, drying; cooling of soln., filtration, drying; elem. anal.;64%
9Na(1+)*[SmW10O36](9-)*30H2O=Na9[SmW10O36]*30H2O

9Na(1+)*[SmW10O36](9-)*30H2O=Na9[SmW10O36]*30H2O

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

8[CH3(CH2)15NC5H5](1+)*H(1+)*[SmW10O36](9-)=[CH3(CH2)15NC5H5]8H[SmW10O36]

8[CH3(CH2)15NC5H5](1+)*H(1+)*[SmW10O36](9-)=[CH3(CH2)15NC5H5]8H[SmW10O36]

Conditions
ConditionsYield
In water addn. of a soln. of cetylpyridinium chloride in water to a soln. of tungstate in water; filtration, washing with water, drying; cooling of soln., filtration, drying; elem. anal.;63%
9Na(1+)*[YW10O36](9-)*20H2O=Na9[YW10O36]*20H2O

9Na(1+)*[YW10O36](9-)*20H2O=Na9[YW10O36]*20H2O

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

7[CH3(CH2)15NC5H5](1+)*2H(1+)*[YW10O36](9-)=[CH3(CH2)15NC5H5]7H2[YW10O36]

7[CH3(CH2)15NC5H5](1+)*2H(1+)*[YW10O36](9-)=[CH3(CH2)15NC5H5]7H2[YW10O36]

Conditions
ConditionsYield
In water addn. of a soln. of cetylpyridinium chloride in water to a soln. of tungstate in water; filtration, washing with water, drying; cooling of soln., filtration, drying; elem. anal.;63%
9Na(1+)*[DyW10O36](9-)=Na9[DyW10O36]

9Na(1+)*[DyW10O36](9-)=Na9[DyW10O36]

cetylpyridinium chloride
123-03-5

cetylpyridinium chloride

7[CH3(CH2)15NC5H5](1+)*2H(1+)*[DyW10O36](9-)=[CH3(CH2)15NC5H5]7H2[DyW10O36]

7[CH3(CH2)15NC5H5](1+)*2H(1+)*[DyW10O36](9-)=[CH3(CH2)15NC5H5]7H2[DyW10O36]

Conditions
ConditionsYield
In water addn. of a soln. of cetylpyridinium chloride in water to a soln. of tungstate in water; filtration, washing with water, drying; cooling of soln., filtration, drying; elem. anal.;63%

Cetylpyridinium chloride Consensus Reports

Reported in EPA TSCA Inventory.

Cetylpyridinium chloride Specification

The Cetylpyridinium chloride, with the CAS registry number 123-03-5,is also known as 5-(6-Amino-2-chloro-purin-9-yl)-4-fluoro-2-(hydroxymethyl)oxolan-3-ol . It belongs to the product categories of Drugs & Medication. Its EINECS number is 204-593-9. This chemical's molecular formula is C21H38ClN and molecular weight is 339.99. What's more,Its systematic name is Cetylpyridinium chloride.It is a white powder or crystals with a pyridine-like odour which is stable, Combustible,and incompatible with strong oxidizing agents,strong bases. Cetylpyridinium chloride is an antiseptic which kills bacteria and other microorganisms. It has been shown to be effective in preventing dental plaque and reducing gingivitis. It is also used as an ingredient in certain pesticides.

Physical properties about Cetylpyridinium chloride are:
(1)ACD/LogP:  1.699; (2)# of Rule of 5 Violations:  0; (3)ACD/LogD (pH 5.5):  1.70; (4)ACD/LogD (pH 7.4):  1.70; (5)ACD/BCF (pH 5.5):  11.52; (6)ACD/BCF (pH 7.4):  11.52; (7)ACD/KOC (pH 5.5):  200.21; (8)ACD/KOC (pH 7.4):  200.21; (9)#H bond acceptors:  1; (10)#H bond donors:  0; (11)#Freely Rotating Bonds:  15.

You can still convert the following datas into molecular structure:
(1)SMILES:[Cl-].[n+]1(ccccc1)CCCCCCCCCCCCCCCC;
(2)Std. InChI:InChI=1S/C21H38N.ClH/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;
(3)Std. InChIKey:YMKDRGPMQRFJGP-UHFFFAOYSA-M.

The toxicity data of Cetylpyridinium chloride are as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cat LD oral > 500mg/kg (500mg/kg)   Journal of Pharmaceutical Sciences. Vol. 59, Pg. 188, 1970.
dog LD oral > 500mg/kg (500mg/kg)   Journal of Pharmaceutical Sciences. Vol. 59, Pg. 188, 1970.
mouse LD50 intraperitoneal 7mg/kg (7mg/kg)   Journal of Pharmaceutical Sciences. Vol. 59, Pg. 188, 1970.
mouse LD50 intravenous 10mg/kg (10mg/kg)   Journal of Biological Standardization. Vol. 1, Pg. 87, 1973.
mouse LD50 oral 108mg/kg (108mg/kg)   Proceedings of the Society for Experimental Biology and Medicine. Vol. 120, Pg. 511, 1965.
rabbit LD50 intravenous 36mg/kg (36mg/kg)   Pesticide Chemicals Official Compendium, Association of the American Pesticide Control Officials, Inc., 1966. Vol. -, Pg. 208, 1966.
rabbit LD50 oral 400mg/kg (400mg/kg)   Pesticide Chemicals Official Compendium, Association of the American Pesticide Control Officials, Inc., 1966. Vol. -, Pg. 208, 1966.
rabbit LD50 subcutaneous 300mg/kg (300mg/kg)   Drugs in Japan Vol. -, Pg. 544, 1990.
rabbit LDLo skin 2gm/kg (2000mg/kg)   Journal of Pharmaceutical Sciences. Vol. 59, Pg. 188, 1970.
rat LC50 inhalation 90mg/m3/4H (90mg/m3)   Food and Chemical Toxicology. Vol. 29, Pg. 851, 1991.
rat LC50 inhalation 90mg/m3/4H (90mg/m3) LUNGS, THORAX, OR RESPIRATION: DYSPNEA

SENSE ORGANS AND SPECIAL SENSES: CHROMODACYRORREA: EYE
Food and Chemical Toxicology. Vol. 29, Pg. 851, 1991.
rat LD50 intraperitoneal 6mg/kg (6mg/kg)   Journal of the American Pharmaceutical Association, Scientific Edition. Vol. 35, Pg. 89, 1946.
rat LD50 oral 200mg/kg (200mg/kg)   Yakkyoku. Pharmacy. Vol. 31, Pg. 471, 1980.
rat LD50 subcutaneous 250mg/kg (250mg/kg)   Journal of the American Pharmaceutical Association, Scientific Edition. Vol. 35, Pg. 89, 1946.

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