CAS 123-03-5|cetylpyridinium chloride

Introduction：Basic information about CAS 123-03-5|cetylpyridinium chloride, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

Table of Contents

1. Names
2. cetylpyridinium chloride BiologicalActivity
3. Chemical & Physical Properties
4. Toxicological Information
CHEMICAL IDENTIFICATION
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
5. Safety Information
6. Customs
7. Synonyms

Common Name	cetylpyridinium chloride
CAS Number	123-03-5	Molecular Weight	339.986
Density	/	Boiling Point	/
Molecular Formula	C₂₁H₃₈ClN	Melting Point	77°C
MSDS	ChineseUSA	Flash Point	/

Names

Name	cetylpyridinium chloride
Synonym	More Synonyms

cetylpyridinium chloride BiologicalActivity

Description	Cetylpyridinium chloride, a cationic quaternary ammonium compound, is an anti-bacterial agent with broad-spectrum activity. Cetylpyridinium chloride is an effective anti-HBV capsid assembly inhibitor with an IC50 of 2.5 μM. Cetylpyridinium chloride is used in pesticides and various types of mouthwashes, and other personal care products[1][2].
Related Catalog	Research Areas >>InfectionSignaling Pathways >>Anti-infection >>HBVResearch Areas >>Inflammation/ImmunologySignaling Pathways >>Anti-infection >>Bacterial
Target	IC50: 2.5 μM (HBV capsid assembly)[1]
In Vitro	Cetylpyridinium chloride interacts with dimeric viral nucleocapsid protein (known as core protein or HBcAg) specifically. Compared with other HBV inhibitors, Cetylpyridinium chloride achieves significantly better reduction of HBV particle number in HepG2.2.15 cell line. Cetylpyridinium chloride inhibits capsid assembly and leads to reduced HBV biogenesis[1]. Cetylpyridinium chloride is a safe antimicrobial agent with broad-spectrum activity for preventing biofilm formation and gingivitis[2].
In Vivo	Cetylpyridinium chloride (30 μg/kg; intramuscular injection; daily; for 3 days; male C57BL/6 mice) treatment inhibits HBV replication in mouse hydrodynamic model system[1]. Animal Model: Male C57BL/6 mice (6-week old) injected with the plasmid [1] Dosage: 272 μg/kg/day Administration: Intramuscular injection; daily; for 3 days Result: Suppressed serum HBV DNA levels, decreased by 60% in day2 and 45% in day3 compared to the control.
References	[1]. Hyun Wook Seo, et al. Cetylpyridinium chloride interaction with the hepatitis B virus core protein inhibits capsid assembly. Virus Res. 2019 Apr 2;263:102-111. [2]. Hiroto Imai, et al. Cetylpyridinium chloride at sublethal levels increases the susceptibility of rat thymic lymphocytes to oxidative stress. Chemosphere. 2017 Mar;170:118-123.

Chemical & Physical Properties

Melting Point	77°C
Molecular Formula	C₂₁H₃₈ClN
Molecular Weight	339.986
Exact Mass	339.269287
PSA	3.88000
LogP	3.45940
Stability	Stable. Combustible. Incompatible with strong oxidizing agents, strong bases.

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UU4900000

CHEMICAL NAME :: Pyridinium, 1-hexadecyl-, chloride

CAS REGISTRY NUMBER :: 123-03-5

LAST UPDATED :: 199710

DATA ITEMS CITED :: 22

MOLECULAR FORMULA :: C21-H38-N.Cl

MOLECULAR WEIGHT :: 340.05

WISWESSER LINE NOTATION :: T6KJ A16 &Q &G

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: 33NFA8 "Animal Models in Dermatology: Relevance to Human Dermatopharmacology and Dermatotoxicology," Maibach, H., ed., New York, Churchill Livingston, 1975 Volume(issue)/page/year: -,2,1975

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 18,137,1968

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: JPMSAE Journal of Pharmaceutical Sciences. (American Pharmaceutical Assoc., 2215 Constitution Ave., NW, Washington, DC 20037) V.50- 1961- Volume(issue)/page/year: 59,188,1970 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 200 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: YKYUA6 Yakkyoku. Pharmacy. (Nanzando, 4-1-11, Yushima, Bunkyo-ku, Tokyo, Japan) V.1- 1950- Volume(issue)/page/year: 31,471,1980

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 90 mg/m3/4H

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - chromodacryorrhea Lungs, Thorax, or Respiration - dyspnea Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year: 29,851,1991

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 6 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JAPMA8 Journal of the American Pharmaceutical Association, Scientific Edition. (Washington, DC) V.29-49, 1940-60. For publisher information, see JPMSAE. Volume(issue)/page/year: 35,89,1946

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 250 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JAPMA8 Journal of the American Pharmaceutical Association, Scientific Edition. (Washington, DC) V.29-49, 1940-60. For publisher information, see JPMSAE. Volume(issue)/page/year: 35,89,1946

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 108 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: PSEBAA Proceedings of the Society for Experimental Biology and Medicine. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1903/04- Volume(issue)/page/year: 120,511,1965

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 7 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JPMSAE Journal of Pharmaceutical Sciences. (American Pharmaceutical Assoc., 2215 Constitution Ave., NW, Washington, DC 20037) V.50- 1961- Volume(issue)/page/year: 59,188,1970

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 10 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JBSTBI Journal of Biological Standardization. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1973- Volume(issue)/page/year: 1,87,1973

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: >500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JPMSAE Journal of Pharmaceutical Sciences. (American Pharmaceutical Assoc., 2215 Constitution Ave., NW, Washington, DC 20037) V.50- 1961- Volume(issue)/page/year: 59,188,1970

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - cat

DOSE/DURATION :: >500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JPMSAE Journal of Pharmaceutical Sciences. (American Pharmaceutical Assoc., 2215 Constitution Ave., NW, Washington, DC 20037) V.50- 1961- Volume(issue)/page/year: 59,188,1970

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 400 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: PCOC** Pesticide Chemicals Official Compendium, Association of the American Pesticide Control Officials, Inc., 1966. (Topeka, KS) Volume(issue)/page/year: -,208,1966

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 2 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JPMSAE Journal of Pharmaceutical Sciences. (American Pharmaceutical Assoc., 2215 Constitution Ave., NW, Washington, DC 20037) V.50- 1961- Volume(issue)/page/year: 59,188,1970

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 300 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: -,544,1990

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 36 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: PCOC** Pesticide Chemicals Official Compendium, Association of the American Pesticide Control Officials, Inc., 1966. (Topeka, KS) Volume(issue)/page/year: -,208,1966 *** REVIEWS *** TOXICOLOGY REVIEW ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000 Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year: 32,245,1974 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84321 No. of Facilities: 113 (estimated) No. of Industries: 3 No. of Occupations: 8 No. of Employees: 2878 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84321 No. of Facilities: 999 (estimated) No. of Industries: 4 No. of Occupations: 13 No. of Employees: 132865 (estimated) No. of Female Employees: 118474 (estimated)

Safety Information

Hazard Codes	T+
RIDADR	2811
Packaging Group	III
Hazard Class	6.1(b)
HS Code	2933399090

Customs

HS Code	2933399090
Summary	2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Synonyms

Pyrisept

1-HEXADECYL-PYRIDINIUM,CHLORIDE

Pristacin

MFCD00011731

EINECS 204-593-9

Cetafilm

Medilave

Pyridinium, 1-hexadecyl-, chloride (1:1)

cetylpyridinium chloride

Aktivex

cpc

Ceepryn chloride

Pionin B 651P

1-hexadecylpyridinum chloride

Cetamium

Ceepryn

Biosept

N-hexadecylpyridinium chloride

Cetyl-pyridinium chloride

Merothol

Merocet

Dobendan

hexadecylpyridinium chloride

1-Hexadecylpyridinium chloride

Cloruro di cetilpiridinio

tserigel

Ipanol

1-hexadecylpyridin-1-ium,chloride

Newkalgen B 651P

N-cetyl-pyridinium chloride

Recommended......