Fenthion

CAS Number55-38-9
Molecular FormulaC10H15O3PS2
Molecular Weight278.3
InChI KeyPNVJTZOFSHSLTO-UHFFFAOYSA-N
LogP4.1
Synonyms
  • fenthion
  • 55-38-9
  • Lebaycid
  • Spotton
  • Baytex
  • Queletox
  • Baycid
  • Tiguvon
  • Entex
  • Fenthione
  • Phenthion
  • Figuron
  • Talodex
  • Sulfidophos
  • Fenthion-methyl
  • Bayer 29493
  • Pro-Spot
  • Fenthion 4E
  • MPP (pesticide)
  • Bay-Bassa
  • Bayer 9007
  • Bayer S-1752
  • OMS 2
  • 4-Methylmercapto-3-methylphenyl dimethyl thiophosphate
  • NCI-C08651
  • BAY 29493
  • ENT 25,540
  • DTXSID8020620
  • BL0L45OVKT
  • O,O-Dimethyl-O-4-(methylmercapto)-3-methylphenyl thiophosphate
  • O,O-Dimethyl O-4-(methylmercapto)-3-methylphenyl phosphorothioate
  • O,O-Dimethyl O-4-methylthio-m-tolyl phosphorothioate
  • S 1752
  • NSC-755881
  • B 29493
  • Phosphorothioic acid, O,O-dimethyl O-(3-methyl-4-(methylthio)phenyl) ester
  • O,O-Dimethyl O-(4-(methylthio)-m-tolyl) phosphorothioate
  • O,O-Dimethyl O-(4-methylthio-3-methylphenyl) thiophosphate
  • O,O-Dimethyl O-(4-methylthio-3-methylphenyl) phosphorothioate
  • O,O-Dimethyl O-(3-methyl-4-methylmercaptophenyl)phosphorothioate
  • m-Cresol, 4-(methylthio)-, O-ester with O,O-dimethyl phosphorothioate
  • DTXCID00620
  • O,O-Dimetil-O-(3-metil-4-metiltio-fenil)-monotiofosfato
  • O,O-Dimethyl O-3-methyl-4-methylthiophenyl phosphorothioate
  • CHEBI:34761
  • O,O-Dimethyl-O-(3-methyl-4-methylthio-fenyl)-monothiofosfaat
  • o,o-dimethyl o-(3-methyl-4-(methylthio)phenyl) phosphorothioate
  • O,O-Dimethyl-O-(3-methyl-4-methylmercaptophenyl)phosphorothioate
  • O,O-Dimethyl-O-4-(methylmercapto)-3-methylphenyl phosphorothioate
  • Thiophosphate de O,O-dimethyle et de O-(3-methyl-4-methylthiophenyle)
  • O,O-Dimethyl O-(3-methyl-4-methylthio-fenyl)-monothiofosfaat
  • O,O-Dimethyl-O-(3-methyl-4-methylthio-phenyl)-thionophosphat
  • O,O-Dimethyl-O-(3-methyl-4-methylthiophenyl)-monothiophosphat
  • Phosphorothioic acid, O,O-dimethyl O-(4-(methylthio)-m-tolyl) ester
  • Phosphorothioic acid, O,O-dimethyl O-[3-methyl-4-(methylthio)phenyl] ester
  • o,o-Dimethyl o-[3-methyl-4-(methylsulfanyl)phenyl] thiophosphate
  • Phosphorothioic acid, O,O-dimethyl O-[4-(methylthio)-m-tolyl] ester
  • methyl 3-methyl-4-(methylsulfanyl)phenyl methoxy(sulfanylidene)phosphonite
  • O,O-dimethyl O-(3-methyl-4-(methylsulfanyl)phenyl) thiophosphate
  • Pro-Spot Solution
  • RefChem:55184
  • O,O-dimethyl O-(3-methyl-4-methylthiophenyl) thiophosphate
  • Tiguvon Pour-On Cattle Insecticide
  • O,O-DIMETHYL O-3-METHYL-4-(METHYLSULFANYL)PHENYL PHOSPHOROTHIOATE
  • Spotton 20% Ready-to-Use Cattle Insecticide
  • 200-231-9
  • Mercaptophos
  • Phosphorothioic acid, O,O-dimethyl O-[3-methyl-4-(methylthio)phenyl]ester
  • ENT 25540
  • NCGC00091635-01
  • O,O-Dimethyl O-(3-methyl-4-(methylthio)phenyl)phosphorothioate
  • Caswell No. 456F
  • Lebayeid
  • C10H15O3PS2
  • O,O-dimethyl O-[3-methyl-4-(methylsulfanyl)phenyl] phosphorothioate
  • CAS-55-38-9
  • Mosquitocide 700
  • CCRIS 310
  • HSDB 1403
  • Fenthion [BSI:ISO]
  • Fenthion [INN:BAN]
  • EINECS 200-231-9
  • UNII-BL0L45OVKT
  • EPA Pesticide Chemical Code 053301
  • BRN 1974129
  • o,o-Dimethyl o-[3-methyl-4-(methylthio)phenyl]phosphorothioate
  • AI3-25540
  • Fenthion solution
  • Fenthion (BAN)
  • Fenthion (MPP)
  • MPP (Pestiide)
  • Tiguvon (TN)
  • Dimethyl methylthiotolyl phosphorothioate
  • Spectrum_001919
  • FENTHION [HSDB]
  • SpecPlus_000550
  • FENTHION [ISO]
  • FENTHION [MI]
  • O,O-Dimethyl O-(4-methylmercapto-3-methylphenyl) thionophosphate
  • O,O-Dimetil-O-(3-metil-4-metiltio-fenil)-monotiofosfato [Italian]
  • Spectrum2_001231
  • Spectrum3_000855
  • Spectrum4_000695
  • Spectrum5_002028
  • FENTHION [MART.]
  • O,O-Dimethyl O-(3-methyl-4-methylthio-fenyl)-monothiofosfaat [Dutch]
  • O,O-Dimethyl-O-(3-methyl-4-methylthio-fenyl)-monothiofosfaat [Dutch]
  • O,O-Dimethyl-O-(3-methyl-4-methylthio-phenyl)-thionophosphat [German]
  • O,O-Dimethyl-O-(3-methyl-4-methylthiophenyl)-monothiophosphat [German]
  • Thiophosphate de O,O-dimethyle et de O-(3-methyl-4-methylthiophenyle) [French]
  • SCHEMBL26907
  • BSPBio_002469
  • KBioGR_001189
  • KBioSS_002461
  • SPECTRUM330064
  • MLS002695988
  • BIDD:ER0528
  • DivK1c_006646
  • FENTHION [GREEN BOOK]
  • SPBio_001102
  • Dimethyl O-(4-(methylthio)-m-tolyl) phosphorothioate
  • CHEMBL1604375
  • SCHEMBL29441335
  • KBio1_001590
  • KBio2_002454
  • KBio2_005022
  • KBio2_007590
  • KBio3_001969
  • PNVJTZOFSHSLTO-UHFFFAOYSA-
  • Dimethyl (3-methyl-4-(methylthio)phenyl) phosphorothionate
  • Dimethyl O-(3-methyl-4-(methylthio)phenyl) thiophosphate
  • O,O-dimethyl-O-[4-(methylthio)-m-tolyl] phosphorothioate
  • HMS3091A22
  • HMS3264I08
  • O,O-dimethyl O-[3-methyl-4-(methylthio)phenyl] thiophosphate
  • Pharmakon1600-00330064
  • MSK20065
  • Tox21_111157
  • Tox21_201595
  • Tox21_300658
  • CCG-39101
  • MFCD00055449
  • NSC755881
  • Fenthion 10 microg/mL in Cyclohexane
  • Fenthion 1000 microg/mL in Acetone
  • Fenthion 1000 microg/mL in Toluene
  • AKOS015889922
  • Tox21_111157_1
  • DB11412
  • NSC 755881
  • NCGC00091635-02
  • NCGC00091635-03
  • NCGC00091635-04
  • NCGC00091635-05
  • NCGC00091635-06
  • NCGC00091635-07
  • NCGC00091635-08
  • NCGC00091635-09
  • NCGC00254566-01
  • NCGC00259144-01
  • AC-16722
  • O,O inverted exclamation marka-Dimethyl O inverted exclamation marka-[3-methyl-4-(methylthio)phenyl] thiophosphate
  • SMR000777965
  • SBI-0052549.P002
  • F1310
  • Fenthion, PESTANAL(R), analytical standard
  • NS00000066
  • C14420
  • D07950
  • E85601
  • AB00053057_04
  • Q418354
  • SR-01000872733
  • SR-01000872733-1
  • BRD-K67217586-001-02-3
  • BRD-K67217586-001-04-9
  • BRD-K67217586-001-08-0
  • O,O-dimethyl O-[3-methyl-4-(methylthio)phenyl]thiophosphate
  • O,O-Dimethyl-O-(3-methyl-4-methylthio-phenyl)-thionophosphate
  • O,O-Dimethyl-O-(3-methyl-4-methylthiophenyl)-monothiophosphate
  • dimethoxy-(3-methyl-4-methylsulfanylphenoxy)-sulfanylidenephosphorane
  • O,O-Dimethyl O-[3-methyl-4-(methylsulfanyl)phenyl] thiophosphate
  • #dimethoxy-(3-methyl-4-methylsulfanylphenoxy)-sulfanylidene-lambda5-phosphane
  • O,O'-Dimethyl O″-[3-methyl-4-(methylthio)phenyl] thiophosphate
  • O,O-Dimethyl O-[(3-methyl-4-methylthio)phenyl] phosphorothioate, 9CI
  • dimethoxy-(3-methyl-4-methylsulfanyl-phenoxy)-sulfanylidene-lambda5-phosphane
  • InChI=1/C10H15O3PS2/c1-8-7-9(5-6-10(8)16-4)13-14(15,11-2)12-3/h5-7H,1-4H3

Applications:

Uv-Vis Spectrum of Fenthion

March 16, 2026

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For optimal results in HPLC analysis, it is recommended to measure absorbance at a wavelength that matches the absorption maximum of the compound(s) being analyzed. The UV spectrum shown can assist in selecting an appropriate wavelength for your analysis. Please note that certain mobile phases and buffers may block wavelengths below 230 nm, rendering absorbance measurement at these wavelengths ineffective. If detection below 230 nm is required, it is recommended to use acetonitrile and water as low UV-transparent mobile phases, with phosphoric acid and its salts, sulfuric acid, and TFA as buffers.
For some compounds, the UV-Vis Spectrum is affected by the pH of the mobile phase. The spectra presented here are measured with an acidic mobile phase that has a pH of 3 or lower.

Application Analytes:
Fenthion
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.