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O-Ethyl methylphosphonothioate

CAS 18005-40-8CH3P(S)(OH)OC2H5Catalysis & Inorganic

O-Ethyl methylphosphonothioate (CAS 18005-40-8), with the chemical formula CH3P(S)(OH)OC2H5 and a molecular weight of 140.14 g/mol, is a phosphorus-containing compound. It finds application as a precursor in chemical synthesis and in fields related to catalysis and inorganic chemistry. Tech Serve Solutions supplies this chemical for laboratory and research purposes, adhering to stringent quality standards.

IUPAC
EMPSH,EMPTA
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O-Ethyl methylphosphonothioate (CH3P(S)(OH)OC2H5) — chemical structure, CAS 18005-40-8; Chemistry, fine chemical supplied by Tech Serve Solutions
Chemical SynthesisPhosphine CompoundsPhosphorus Precursors
01 /Applications

Chemical Synthesis Intermediate

O-Ethyl methylphosphonothioate serves as a valuable building block in organic and organophosphorus synthesis. Its reactive functional groups allow for its incorporation into more complex molecular structures.

Phosphorus Precursor

This compound acts as a precursor for the synthesis of various organophosphorus compounds. It is relevant in research exploring new phosphorus-based materials and reagents.

Catalysis and Inorganic Chemistry

Its properties make it suitable for investigations within catalysis and inorganic chemistry research. It may be employed in studies involving phosphorus-based catalytic systems.

02 /Properties
Molecular weight140.14
Linear formulaCH3P(S)(OH)OC2H5
Assay90%
Boiling point73 °C/1 mmHg(lit.)
Density1.18 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.487(lit.)
03 /Safety & handling
GHS hazard pictogram: Corrosive (GHS05)
Corrosive
GHS hazard pictogram: Toxic (GHS06)
Toxic
Danger

Hazard statements

  • H301Toxic if swallowed
  • H311Toxic in contact with skin
  • H314Causes severe skin burns and eye damage
  • H331Toxic if inhaled

Precautionary statements

  • P261Avoid breathing dust, fume, gas or vapours
  • P280Wear protective gloves, clothing and eye/face protection
  • P301IF SWALLOWED
  • P305IF IN EYES
  • P310Immediately call a POISON CENTER or doctor
Protective equipmentFaceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point107 °C / 224.6 °F
Transport (UN / ADR)UN 2927 6.1/PG 2
Water hazard class (WGK, DE)3
Hazard codes (EU)T
Risk statements (R)23/24/25-34
Safety statements (S)26-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry
CAS number
18005-40-8
MDL number
MFCD00274635
PubChem substance
24868158
05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is O-Ethyl methylphosphonothioate used for?

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O-Ethyl methylphosphonothioate is primarily used as an intermediate in chemical synthesis, a phosphorus precursor, and in research related to catalysis and inorganic chemistry.

What is the CAS number and formula for O-Ethyl methylphosphonothioate?

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The CAS number is 18005-40-8, and the chemical formula is CH3P(S)(OH)OC2H5.

What grade and purity does Tech Serve Solutions supply?

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Tech Serve Solutions supplies O-Ethyl methylphosphonothioate with an assay of 90%. This is a technical/research grade material, and TSS does not represent it as USP, BP, or EP.

How should O-Ethyl methylphosphonothioate be handled?

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Handling requires extreme caution due to its significant hazards. It is toxic if swallowed, in contact with skin, and if inhaled, and causes severe skin burns and eye damage. Appropriate personal protective equipment, including faceshields, gloves, goggles, and a suitable respirator, must be used in a well-ventilated area. Refer to the safety data sheet for full details.

Is O-Ethyl methylphosphonothioate a controlled substance?

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The provided data does not indicate that O-Ethyl methylphosphonothioate is a controlled substance.

How is O-Ethyl methylphosphonothioate shipped and exported?

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O-Ethyl methylphosphonothioate is shipped and exported as UN 2927, Class 6.1, Packing Group II, signifying a toxic substance. Tech Serve Solutions handles all export documentation and compliance.

How can I request a quote or sample?

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To request a quote or a sample, please contact our sales team through the website or by phone, providing the product name and CAS number.

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