Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Closantel
Price: Check
Purity: 99.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

ShangHai DC Chemicals Co.,Ltd
China
Product Name: Closantel
Price: ￥Inquiry/1g
Purity: 98.9%
Stocking Period: 1 Day
Contact: Tony Lai
Email: order@dcchemicals.com

DC Chemicals Limited
China
Product Name: Closantel
Price: $100.0/200mg $200.0/500mg $400.0/1g
Purity: 98.0%
Stocking Period: 3 Day
Contact: Tony Cao
Email: sales@dcchemicals.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Closantel
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: closantel
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

57808-65-8

57808-65-8 structure

57808-65-8 structure

Name: Closantel
Chemical Name: closantel
CAS Number: 57808-65-8
Molecular Formula: C₂₂H₁₄Cl₂I₂N₂O₂
Molecular Weight: 663.074
Catalog: analytical chemistry Standard Pesticides, veterinary drugs and fertilizers
Create Date: 2018-05-03 08:00:00
Modify Date: 2025-08-26 15:24:52
Closantel is a salicylanilide anthelmintic compound; exhibits different anthelmintic spectra and apparent toxicity in mammals.

Name	closantel
Synonyms	MFCD00661151 Closantel N-{5-Chloro-4-[(4-chlorophenyl)(cyano)methyl]-2-methylphenyl}-2-hydroxy-3,5-diiodobenzamide rac-N-[5-chloro-4-[(R)-(4-chlorophenyl)cyanomethyl]-2-methylphenyl]-2-hydroxy-3,5-diiodobenzamide N-[5-Chloro-4-[(4-chlorophenyl)cyanomethyl]-2-methylphenyl]-2-hydroxy-3,5-diiodobenzamide (RS)-5’-chloro-4’-(4-chloro-α-cyanobenzyl)-3,5-diiodosalicyl-o-toluidide N-{5-Chlor-4-[(4-chlorphenyl)(cyan)methyl]-2-methylphenyl}-2-hydroxy-3,5-diiodbenzolcarboxamid N-(5-Chloro-4-((4-chlorophenyl)(cyano)methyl)-2-methylphenyl)-2-hydroxy-3,5-diiodobenzamide Benzamide, N-[5-chloro-4-[(4-chlorophenyl)cyanomethyl]-2-methylphenyl]-2-hydroxy-3,5-diiodo- UNII:EUL532EI54 EINECS 260-967-1

Description	Closantel is a salicylanilide anthelmintic compound; exhibits different anthelmintic spectra and apparent toxicity in mammals.
Related Catalog	Signaling Pathways >> Anti-infection >> Parasite Research Areas >> Infection
References	[1]. Bacon JA, et al. Comparative in vitro effects of closantel and selected beta-ketoamide anthelmintics on a gastrointestinal nematode and vertebrate liver cells. J Vet Pharmacol Ther. 1998 Jun;21(3):190-8. [2]. Macielag MJ, et al. Substituted salicylanilides as inhibitors of two-component regulatory systems in bacteria. J Med Chem. 1998 Jul 30;41(16):2939-45. [3]. Waruiru RM. Efficacy of closantel, albendazole and levamisole on an ivermectin resistant strain of Haemonchus contortus in sheep. Vet Parasitol. 1997 Dec 15;73(1-2):65-71.

Density	1.9±0.1 g/cm3
Boiling Point	590.5±50.0 °C at 760 mmHg
Melting Point	210 - 22ºC
Molecular Formula	C₂₂H₁₄Cl₂I₂N₂O₂
Molecular Weight	663.074
Flash Point	310.9±30.1 °C
Exact Mass	661.852173
PSA	73.12000
LogP	9.08
Vapour Pressure	0.0±1.7 mmHg at 25°C
Index of Refraction	1.736

CHEMICAL IDENTIFICATION

RTECS NUMBER :: CV2444250

CHEMICAL NAME :: Benzamide, N-(5-chloro-4-((4-chlorophenyl)cyanomethyl)-2-methylp henyl)-2-hydroxy-3,5- diiodo-

CAS REGISTRY NUMBER :: 57808-65-8

LAST UPDATED :: 199412

DATA ITEMS CITED :: 9

MOLECULAR FORMULA :: C22-H14-Cl2-I2-N2-O2

MOLECULAR WEIGHT :: 663.08

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 262 mg/kg

TOXIC EFFECTS :: Behavioral - ataxia Lungs, Thorax, or Respiration - dyspnea Gastrointestinal - hypermotility, diarrhea

REFERENCE :: DCTODJ Drug and Chemical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.1- 1977/78- Volume(issue)/page/year: 8,101,1985

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

ROUTE OF EXPOSURE :: Intramuscular

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 28400 ug/kg

TOXIC EFFECTS :: Behavioral - ataxia Lungs, Thorax, or Respiration - dyspnea Gastrointestinal - hypermotility, diarrhea

REFERENCE :: DCTODJ Drug and Chemical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.1- 1977/78- Volume(issue)/page/year: 8,101,1985

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 331 mg/kg

TOXIC EFFECTS :: Behavioral - ataxia Lungs, Thorax, or Respiration - dyspnea Gastrointestinal - hypermotility, diarrhea

REFERENCE :: DCTODJ Drug and Chemical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.1- 1977/78- Volume(issue)/page/year: 8,101,1985

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

ROUTE OF EXPOSURE :: Intramuscular

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 56800 ug/kg

TOXIC EFFECTS :: Behavioral - ataxia Lungs, Thorax, or Respiration - dyspnea Gastrointestinal - hypermotility, diarrhea

REFERENCE :: DCTODJ Drug and Chemical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.1- 1977/78- Volume(issue)/page/year: 8,101,1985

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - domestic

DOSE/DURATION :: 70 mg/kg

TOXIC EFFECTS :: Peripheral Nerve and Sensation - spastic paralysis with or without sensory change Sense Organs and Special Senses (Eye) - visual field changes Behavioral - muscle weakness

REFERENCE :: DCTODJ Drug and Chemical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.1- 1977/78- Volume(issue)/page/year: 8,101,1985

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intramuscular

SPECIES OBSERVED :: Mammal - domestic

DOSE/DURATION :: 40 mg/kg

TOXIC EFFECTS :: Peripheral Nerve and Sensation - spastic paralysis with or without sensory change Sense Organs and Special Senses (Eye) - visual field changes Behavioral - muscle weakness

REFERENCE :: DCTODJ Drug and Chemical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.1- 1977/78- Volume(issue)/page/year: 8,101,1985

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intramuscular

SPECIES OBSERVED :: Mammal - cattle

DOSE/DURATION :: 35 mg/kg

TOXIC EFFECTS :: Peripheral Nerve and Sensation - spastic paralysis with or without sensory change Sense Organs and Special Senses (Eye) - visual field changes Behavioral - muscle weakness

REFERENCE :: DCTODJ Drug and Chemical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.1- 1977/78- Volume(issue)/page/year: 8,101,1985 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3640 mg/kg/91D-C

TOXIC EFFECTS :: Related to Chronic Data - changes in testicular weight

REFERENCE :: DCTODJ Drug and Chemical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.1- 1977/78- Volume(issue)/page/year: 8,101,1985 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 3600 mg/kg

SEX/DURATION :: male 90 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Paternal Effects - testes, epididymis, sperm duct

REFERENCE :: DCTODJ Drug and Chemical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.1- 1977/78- Volume(issue)/page/year: 8,101,1985

Symbol	GHS06
Signal Word	Danger
Hazard Statements	H301-H413
Precautionary Statements	P301 + P310
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Faceshields;Gloves
Hazard Codes	Xn
Risk Phrases	R22
RIDADR	2811
RTECS	CV2444250
Packaging Group	III
Hazard Class	6.1(b)

123-91-1 structure

123-91-1

42016-91-1 structure

42016-91-1

61437-85-2 structure

61437-85-2

~%

57808-65-8 structure

57808-65-8

Literature: US4005218 A1, ;

Precursor 3
123-91-1 42016-91-1 61437-85-2
DownStream 0

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