Diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane

C8H19O3PS2

diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane

CAS298-03-3
GHS06 Gefahrensymbol: Giftig – Totenkopf mit Knochen
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
298-03-3
EC Number
206-053-8
UN Number
3017
Index Number
015-028-00-9
PubChem CID
9273

Physical-chemical properties

Molecular Formula
C8H19O3PS2
Molar Mass
258.30 g/mol
IUPAC Name
diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane

Chemical Identifiers

InChI
InChI=1S/C8H19O3PS2/c1-4-9-12(13,10-5-2)11-7-8-14-6-3/h4-8H2,1-3H3
InChI Key
DGLIBALSRMUQDD-UHFFFAOYSA-N

Overview

Diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane (CAS 298-03-3) is an organophosphorus compound with molecular formula C8H19O3PS2 featuring both phosphorus and sulfur functionalities. This specialized organophosphorus chemical compound belongs to a class of phosphorothioate derivatives that incorporate both ethoxy and ethylsulfanyl substituents. With a molecular weight of 258.3 g/mol and EC number 206-053-8, this substance represents a sophisticated example of multifunctional phosphorus chemistry where the lambda5-phosphane designation indicates the pentavalent phosphorus center in its molecular structure. The compound exhibits significant toxicity concerns, classified under Acute Toxicity Category 1 and 2, requiring careful handling protocols and specialized safety equipment. Its GHS06 and GHS09 pictogrammes indicate both acute toxicity and environmental hazards, particularly toward aquatic ecosystems where it carries an Aquatic Acute 1 classification. Transportation falls under ADR Class 6.1, reflecting its toxic nature and need for specialized logistics handling. From a chemical perspective, this phosphorothioate shares structural similarities with other organophosphorus compounds such as diethoxyphosphoryl diethyl phosphate, though it differs significantly in its sulfur-containing substituents which modify both its reactivity profile and biological activity. The presence of the ethylsulfanyl group provides unique chemical properties that distinguish it from simpler phosphate esters. Industrial applications typically focus on specialized chemical synthesis where the dual phosphorus-sulfur functionality offers unique reactivity patterns. The compound serves as an intermediate in pharmaceutical synthesis and as a specialized reagent in organophosphorus chemistry research applications. OYSI maintains reliable supply chains for this technical-grade organophosphorus compound, ensuring compliance with European chemical regulations and safety standards.

Safety & Classification

Danger
Classification:

Acute Tox. 1; Acute Tox. 2 *; Aquatic Acute 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H310

Fatal in contact with skin.

H300

Fatal if swallowed.

H400

Very toxic to aquatic life.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Skin Contact

Fatal

Measures if substance contacts the skin

First Aid Actions

  • +P302IF ON SKIN:
  • +P352Wash with plenty of water.
  • +P361Take off immediately all contaminated clothing.
  • +P313Get medical advice/attention.

Related hazard statements:

Ingestion

Fatal

Measures if substance is accidentally swallowed

First Aid Actions

  • +P301IF SWALLOWED:
  • +P330Rinse mouth.
  • +P331Do NOT induce vomiting.
  • +P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number3017
ADR Class6.1
Packing GroupI
Tunnel CodeC/E
Proper Shipping NameDemeton-O (ISO)
Marine PollutantNo

Frequently Asked Questions

What is diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane?

Diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane is an organophosphorus compound with the molecular formula C8H19O3PS2 and a molecular weight of 258.3 g/mol. This chemical substance belongs to the phosphorothioate family and contains both ethoxy and ethylsulfanylethoxy functional groups attached to a phosphorus center. It is classified as a highly toxic substance requiring careful handling and safety precautions during use and storage.

What are the physicochemical properties of diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane?

Diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane is an organophosphorus compound with molecular formula C8H19O3PS2 and molecular weight 258.3 g/mol. As a phosphorothioate derivative, it typically exists as a liquid at room temperature with characteristic organophosphorus odor. The compound contains both hydrophilic ethoxy groups and lipophilic sulfur-containing chains, affecting its solubility properties. Specific physical properties such as boiling point, density, and exact solubility data should be confirmed through technical documentation.

What is diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane used for?

Diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane is primarily used in specialized chemical synthesis and research applications. As an organophosphorus compound, it serves as an intermediate in the production of various phosphorothioate derivatives and may be utilized in pharmaceutical research, agrochemical development, or specialized industrial processes. Its specific applications depend on its unique chemical structure combining phosphorus, sulfur, and ethoxy functionalities, making it valuable for targeted synthetic pathways requiring these specific reactive groups.

How to handle diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane safely?

Diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane requires extreme caution due to its Acute Toxicity Category 1 classification. Personnel must wear full personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection in well-ventilated areas or fume hoods. Work should only be conducted by trained professionals following strict safety protocols. The substance displays GHS06 (skull and crossbones) pictogram indicating severe toxicity risks. Minimize exposure time and ensure emergency procedures are readily available.

How to store diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane correctly?

Diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane must be stored in a secure, temperature-controlled environment away from incompatible materials. Storage areas should be well-ventilated with restricted access due to its high toxicity classification. Containers must be properly sealed and labeled according to GHS requirements, displaying appropriate hazard pictograms (GHS06, GHS09). Storage facilities should comply with local regulations for highly toxic substances and include appropriate spill containment measures and emergency response equipment.

What to do in case of contact with diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane?

Immediate medical attention is critical due to the substance's Acute Toxicity Category 1 classification. For skin contact, remove contaminated clothing and rinse thoroughly with water for at least 15 minutes. In case of eye contact, flush immediately with clean water and seek urgent medical care. If inhaled, move to fresh air immediately and provide respiratory support if needed. For ingestion, do not induce vomiting and contact poison control immediately. Always contact emergency services and provide the safety data sheet to medical professionals.

How to dispose of diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane appropriately?

Diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane must be disposed of through licensed hazardous waste facilities due to its high toxicity and aquatic toxicity classifications. The substance cannot be discharged into sewers, waterways, or regular waste streams due to environmental risks indicated by GHS09 pictogram. Disposal must comply with local and European waste regulations including proper classification, documentation, and tracking. Only authorized waste management companies with appropriate permits should handle disposal of this highly toxic organophosphorus compound.

How to transport diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane?

Diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane is classified under ADR Class 6.1 (Toxic substances) Packing Group I, indicating maximum danger level for transport. Transportation requires specialized packaging, labeling, and documentation complying with dangerous goods regulations. Only authorized carriers with appropriate permits and training can transport this substance. Vehicles must display proper hazard placards and carry emergency response information. Shipments require proper declaration and may be subject to routing restrictions due to the high toxicity classification.

Is diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane subject to particular regulations?

Diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane is subject to strict European chemical regulations under REACH and CLP due to its high toxicity profile. The substance is not currently listed as SVHC but requires proper registration, classification, and safety data communication. Its Acute Toxicity Category 1 classification mandates compliance with occupational safety regulations, restricted handling procedures, and specialized waste management protocols. Users must ensure proper risk assessments and implement appropriate control measures according to regulatory requirements.

Where to buy diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane in Europe?

Diethoxy-(2-ethylsulfanylethoxy)-sulfanylidene-lambda5-phosphane is available through OYSI, a specialized European distributor of technical chemicals. As a highly regulated substance with Acute Toxicity Category 1 classification, procurement requires proper licensing and compliance verification. OYSI provides technical support, regulatory documentation, and ensures proper handling protocols throughout the supply chain. Customers must demonstrate appropriate safety measures and regulatory compliance before purchase. Contact OYSI directly to discuss availability, technical specifications, and regulatory requirements for this specialized chemical.

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Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.