Mesulfenfos

Modify Date: 2026-07-02 11:45:20

Mesulfenfos Structure
Mesulfenfos structure
Common Name Mesulfenfos
CAS Number 3761-41-9 Molecular Weight 294.328
Density 1.3±0.1 g/cm3 Boiling Point 397.1±52.0 °C at 760 mmHg
Molecular Formula C10H15O4PS2 Melting Point N/A
MSDS Chinese USA Flash Point 194.0±30.7 °C
Symbol GHS06
GHS06
Signal Word Danger

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name mesulfenfos
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.3±0.1 g/cm3
Boiling Point 397.1±52.0 °C at 760 mmHg
Molecular Formula C10H15O4PS2
Molecular Weight 294.328
Flash Point 194.0±30.7 °C
Exact Mass 294.014923
PSA 105.87000
LogP 1.63
Vapour Pressure 0.0±0.9 mmHg at 25°C
Index of Refraction 1.584
Storage condition APPROX 4°C

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TF9400000
CHEMICAL NAME :
Phosphorothioic acid, O,O-dimethyl O-(4-(methylsulfinyl)-m-tolyl) ester
CAS REGISTRY NUMBER :
3761-41-9
LAST UPDATED :
199612
DATA ITEMS CITED :
5
MOLECULAR FORMULA :
C10-H15-O4-P-S2
MOLECULAR WEIGHT :
294.34
WISWESSER LINE NOTATION :
OS1&R B1 DOPS&O1&O1

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 :
125 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
GUCHAZ Guide to the Chemicals Used in Crop Protection. (Information Canada, 171 Slater St., Ottawa, Ont., Canada) Volume(issue)/page/year: 6,279,1973
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
3 gm/kg
TOXIC EFFECTS :
Peripheral Nerve and Sensation - fasciculations
REFERENCE :
BWHOA6 Bulletin of the World Health Organization. (WHO, Pub. Center USA, 49 Sheridan Ave., Albany, NY 12210) Volume(issue)/page/year: 29,205,1963
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
250 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 6,86,1964
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
220 mg/kg
TOXIC EFFECTS :
Behavioral - tremor Gastrointestinal - changes in structure or function of salivary glands
REFERENCE :
JOPHDQ Journal of Pharmacobio-Dynamics. (Japan Pub. Trading Co. (USA), 1255 Howard St., San Francisco, CA 94103) V.1- 1978- Volume(issue)/page/year: 9,697,1986
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intracerebral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
5 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PCBPBS Pesticide Biochemistry and Physiology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1971- Volume(issue)/page/year: 8,302,1978

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Symbol GHS06
GHS06
Signal Word Danger
Hazard Statements H301
Precautionary Statements P301 + P310
Personal Protective Equipment Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges
Hazard Codes F,Xn,N,T
Risk Phrases 11-20/21/22-36-50/53-25
Safety Phrases S45;S60;S61
RIDADR UN 2783
RTECS TF9400000
Packaging Group III
Hazard Class 6.1(b)
HS Code 2930909090

 Precursor & DownStream

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor  1

DownStream  1

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2930909090
Summary 2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

Fenthionsulfoxide
dimethoxy-(3-methyl-4-methylsulfinylphenoxy)-sulfanylidene-λ<sup>5</sup>-phosphane
Phosphorothioic acid, O,O-dimethyl O-[3-methyl-4-(methylsulfinyl)phenyl] ester
O,O-dimethyl O-4-methylsulfinyl-m-tolyl phosphorothioate
OS1&R B1 DOPS&O1&O1
Mesulfenos
O,O-Dimethyl O-[3-methyl-4-(methylsulfinyl)phenyl] phosphorothioate
O,O-Dimethyl O-(4-(methylsulfinyl)-m-tolyl) phosphorothioate
MFCD00144307
Mesulfenfos
Fensulfoxide
Phosphorothioic acid, O,O-dimethyl O-[4-(methylsulfinyl)-m-tolyl] ester
O-[4-(methanesulfinyl)-3-methylphenyl] O,O-dimethyl phosphorothioate
O,O-Dimethyl O-((4-methylthio)-m-tolyl)phosphorothioate sulfoxide
O,O-dimethyl O-[3-methyl-4-(methylsulfinyl)phenyl]phosphorothioate
Mesulfenfos [ISO]

 Mesulfenfos | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the CAS number of mesulfenfos?
A: CAS number of mesulfenfos is 3761-41-9.
Q: What is the boiling point of mesulfenfos?
A: Boiling point of mesulfenfos is 397.1±52.0 °C at 760 mmHg.
Q: What are the storage conditions for mesulfenfos?
A: Storage conditions for mesulfenfos: APPROX 4°C.
Q: What are the downstream products of mesulfenfos?
A: Related downstream products(CAS) of mesulfenfos: 14143-28-3.
Q: What are the upstream materials of mesulfenfos?
A: Related upstream materials(CAS) of mesulfenfos: 55-38-9.
Q: What is the molecular formula of mesulfenfos?
A: Molecular formula of mesulfenfos is C10H15O4PS2.
Q: What is the molecular weight of mesulfenfos?
A: Molecular weight of mesulfenfos is 294.328.
Q: What is the safety information for mesulfenfos?
A: Safety information for mesulfenfos: S45;S60;S61.
Q: What is the LogP of mesulfenfos?
A: LogP of mesulfenfos is 1.63.
Q: What is the English name of mesulfenfos?
A: The English name of mesulfenfos is mesulfenfos.

 Mesulfenfosfactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
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