methomyl

Modify Date: 2025-08-20 14:02:52

methomyl structure	Common Name	methomyl
	CAS Number	16752-77-5	Molecular Weight	162.210
	Density	1.2±0.1 g/cm3	Boiling Point	144°C
	Molecular Formula	C₅H₁₀N₂O₂S	Melting Point	78°C
	MSDS	Chinese USA	Flash Point	N/A
	Symbol	GHS06, GHS09	Signal Word	Danger

Name	methomyl
Synonym	More Synonyms

Density	1.2±0.1 g/cm3
Boiling Point	144°C
Melting Point	78°C
Molecular Formula	C₅H₁₀N₂O₂S
Molecular Weight	162.210
Exact Mass	162.046295
PSA	75.99000
LogP	0.60
Index of Refraction	1.509
InChIKey	UHXUZOCRWCRNSJ-UHFFFAOYSA-N
SMILES	CNC(=O)ON=C(C)SC
Stability	Stable. Incompatible with strong bases, strong oxidizing agents.
Water Solubility	Soluble. 5.8 g/100 mL

methomyl MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: AK2975000

CHEMICAL NAME :: Acetimidic acid, thio-N-((methylcarbamoyl)oxy)-, methyl ester

CAS REGISTRY NUMBER :: 16752-77-5

LAST UPDATED :: 199712

DATA ITEMS CITED :: 52

MOLECULAR FORMULA :: C5-H10-N2-O2-S

MOLECULAR WEIGHT :: 162.23

WISWESSER LINE NOTATION :: 1SY1&UNOVM1

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 :: 17 mg/kg

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

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

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 77 ppm/4H

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - tremor Lungs, Thorax, or Respiration - dyspnea

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

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >1600 mg/kg

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

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

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 9 mg/kg

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

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 10 mg/kg

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

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 20 mg/kg

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

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Primate - monkey

DOSE/DURATION :: 40 mg/kg

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

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

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 5880 mg/kg

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

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 15 mg/kg

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

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Bird - pigeon

DOSE/DURATION :: 10 mg/kg

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

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Bird - chicken

DOSE/DURATION :: 28 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - dyspnea

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Bird - quail

DOSE/DURATION :: 23700 ug/kg

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

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

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Bird - quail

DOSE/DURATION :: 3680 ppm

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

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Bird - duck

DOSE/DURATION :: 15 mg/kg

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

REFERENCE :: SHELL* Shell Chemical Company. (P.O. Box 4320, Houston, TX 77210)

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

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Bird - duck

DOSE/DURATION :: 1890 ppm

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

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Bird - wild bird species

DOSE/DURATION :: 10 mg/kg

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

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 15960 mg/kg/95W-C

TOXIC EFFECTS :: Blood - changes in bone marrow (not otherwise specified) Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - changes in testicular weight

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 264 mg/kg/33D-I

TOXIC EFFECTS :: Brain and Coverings - other degenerative changes Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 18200 mg/kg/2Y-C

TOXIC EFFECTS :: Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis) Blood - changes in bone marrow (not otherwise specified) Related to Chronic Data - death

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 3 gm/kg/3W-I

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Lungs, Thorax, or Respiration - dyspnea Related to Chronic Data - death

TYPE OF TEST :: DNA damage

TYPE OF TEST :: DNA damage

TYPE OF TEST :: Cytogenetic analysis

MUTATION DATA

TEST SYSTEM :: Rodent - mouse

REFERENCE :: ENVRAL Environmental Research. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1967- Volume(issue)/page/year: 42,362,1987 *** REVIEWS *** ACGIH TLV-Not classifiable as a human carcinogen DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-TWA 2.5 mg/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 TOXICOLOGY REVIEW 85ALAU "Carbamate Insecticides: Chemistry, Biochemistry, and Toxicology," Kuhr, R.J., and H.W. Dorough, Cleveland, OH, CRC Press, 1976 Volume(issue)/page/year: -,106,1977 *** 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 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 2.5 mg/m3 JAN 1993 OEL-BELGIUM:TWA 2.5 mg/m3 JAN 1993 OEL-DENMARK:TWA 2.5 mg/m3;Skin JAN 1993 OEL-FRANCE:TWA 2.5 mg/m3;Skin JAN 1993 OEL-THE NETHERLANDS:TWA 2.5 mg/m3;Skin JAN 1993 OEL-SWITZERLAND:TWA 2.4 mg/m3;Skin JAN 1993 OEL-UNITED KINGDOM:TWA 2.5 mg/m3;Skin JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO METHOMYL-air:10H TWA 2.5 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - B0027 No. of Facilities: 15 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 2367 (estimated) No. of Female Employees: 1288 (estimated)

Symbol	GHS06, GHS09
Signal Word	Danger
Hazard Statements	H300-H410
Precautionary Statements	P273-P301 + P310 + P330-P391-P501
Personal Protective Equipment	Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes	T+:Verytoxic;N:Dangerous for the environment;
Risk Phrases	R28;R50/53
Safety Phrases	S1/2-S22-S36/37-S60-S61-S45-S16
RIDADR	UN 2757
RTECS	AK2975000
Packaging Group	II
Hazard Class	6.1(a)
HS Code	2930909052

Precursor 0
DownStream 2
CAS#:74-89-5 methylamine CAS#:57117-24-5 NITROSOMETHOMYL

HS Code	2930909052
Summary	2930909052 (e)-2-methyl-2-(methylsulfonyl)propanal o-methylcarbamoyl oxime。supervision conditions:s(import or export registration certificate for pesticides)。VAT:17.0%。tax rebate rate:0.0%。MFN tarrif:6.5%。general tariff:30.0%

Effect of methomyl and oxamyl soil applications on early control of nematodes and insects.

Pest Manag. Sci. 67(5) , 507-13, (2011)

Methomyl is a widely used carbamate insecticide that has traditionally been applied as a foliar spray. More recently, methomyl has been labeled as a soil application via drip chemigation. Not much is ...

Efficacy of wax matrix bait stations for Mediterranean fruit flies (Diptera: Tephritidae).

J. Econ. Entomol. 105(2) , 471-9, (2012)

Tests were conducted that evaluated efficacy of wax matrix bait stations for Ceratitis capitata (Wiedemann) adults in Guatemala. Bait stations were exposed to outdoor conditions to determine effect of...

Polar organic chemical integrative samplers for pesticides monitoring: impacts of field exposure conditions.

Sci. Total Environ. 488-489 , 188-96, (2014)

This study focuses on how Polar Organic Chemical Integrative Samplers (POCIS) work in real environmental conditions. A selection of 23 polar pesticides and 8 metabolites were investigated by exposure ...

Methyl (1E)-N-[(methylcarbamoyl)oxy]ethanimidothioate

IN 1179

methomyl

methyl (1Ξ)-N-[(methylcarbamoyl)oxy]ethanimidothioate

Ethanimidothioic acid, N-[[(methylamino)carbonyl]oxy]-, methyl ester, (1E)-

Methyl N-[[(methylamino)carbonyl]oxy]ethanimidothioate

DUNET

Methomyl PESTANAL(R),analytical standard

Metomil

S-methyl (EZ)-N-(methylcarbamoyloxy)thioacetimidate

KUIK

Kipsin

1SY1&UNOVM1

MFCD00055451

Flytek

Lannate

lanox

NUDRIN

EINECS 240-815-0

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: methomyl
Price: Check
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Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: methomyl
Price: ￥198.0/1ml
Purity: 98.0%
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DC Chemicals Limited
China
Product Name: Methomyl
Price: $Inquiry/100mg $Inquiry/250mg $Inquiry/500mg
Purity: 98.0%
Delivery: 3 Day
Contact: Tony Cao
Email: sales@dcchemicals.com

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

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methomyl

Names

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MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

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Precursor & DownStream

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