Diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane

C11H17O4PS2

diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane

CAS115-90-2
GHS06 Gefahrensymbol: Giftig – Totenkopf mit Knochen
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
115-90-2
EC Number
204-114-3
UN Number
3018
Index Number
015-090-00-7
PubChem CID
8292

Physical-chemical properties

Molecular Formula
C11H17O4PS2
Molar Mass
308.40 g/mol
IUPAC Name
diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane

Chemical Identifiers

InChI
InChI=1S/C11H17O4PS2/c1-4-13-16(17,14-5-2)15-10-6-8-11(9-7-10)18(3)12/h6-9H,4-5H2,1-3H3
InChI Key
XDNBJTQLKCIJBV-UHFFFAOYSA-N

Overview

Diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane (CAS 115-90-2) is an organophosphorus compound with potent insecticidal properties and high acute toxicity. This specialized phosphorothioate derivative represents a significant class of organophosphorus pesticides widely utilized in agricultural and pest control applications. With the molecular formula C11H17O4PS2 and a molecular weight of 308.4 g/mol, this compound exhibits the characteristic structural features of lambda5-phosphane derivatives that make them effective acetylcholinesterase inhibitors. The presence of the methylsulfinyl group on the phenoxy ring enhances its biological activity while contributing to its specific toxicological profile. The compound's classification under Acute Toxicity Categories 1 and 2 with the GHS06 skull and crossbones pictogram indicates its extremely hazardous nature, requiring stringent handling protocols and specialized safety equipment. Its ADR Class 6.1 designation for toxic substances further emphasizes the critical importance of proper storage, transportation, and application procedures. Environmental concerns are equally significant, as evidenced by the GHS09 environmental hazard pictogram and its classification as Aquatic Acute 1 and Aquatic Chronic 1, indicating severe and long-lasting effects on aquatic ecosystems. Industrial applications primarily focus on agricultural pest control, particularly for crops requiring systemic insecticidal protection. The compound is also employed in specialized pest management programs and professional-grade insecticide formulations. Related compounds in this chemical family include tert-butylsulfanylmethylsulfanyl-diethoxy-sulfanylidene-lambda5-phosphane and ethoxy-(4-nitrophenoxy)-phenyl-sulfanylidene-lambda5-phosphane, which share similar organophosphorus mechanisms of action but differ in their specific substituent groups and resulting biological activities. OYSI provides access to this technical-grade compound for qualified industrial customers with appropriate handling capabilities and regulatory compliance.

Safety & Classification

Danger
Classification:

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

H410

Very toxic to aquatic life with long lasting effects.

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 Number3018
ADR Class6.1
Packing GroupI
Tunnel CodeC/E
Proper Shipping NameFensulfothion (ISO)
Marine PollutantNo

Frequently Asked Questions

What is diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane?

Diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane is an organophosphorus compound with the molecular formula C11H17O4PS2 and CAS number 115-90-2. This chemical substance has a molecular weight of 308.4 g/mol and contains phosphorus, sulfur, and oxygen functional groups. It is classified as extremely hazardous with acute toxicity properties and environmental risks, requiring careful handling and specialized safety measures in industrial applications.

What are the physicochemical properties of diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane?

Diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane is a complex organophosphorus compound with a molecular mass of 308.4 g/mol. The substance contains multiple functional groups including ethoxy, phenoxy, and sulfinyl moieties attached to a phosphorus center. Its chemical structure C11H17O4PS2 indicates the presence of carbon, hydrogen, oxygen, phosphorus, and sulfur atoms, forming a stable lambda5-phosphane configuration with specific reactivity patterns.

What is diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane used for?

Diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane is primarily used as a specialized chemical intermediate in organic synthesis and pharmaceutical manufacturing. Its unique organophosphorus structure makes it valuable for developing pesticides, flame retardants, and other industrial chemicals. Due to its high toxicity classification (Acute Tox. 1 and 2), its applications are restricted to professional industrial settings where proper safety protocols can be maintained.

How to handle diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane safely?

Diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane requires maximum safety precautions due to its Acute Tox. 1 classification. Essential protective equipment includes full-face respirators, chemical-resistant gloves, and complete body protection suits. Work must be conducted in well-ventilated areas or fume hoods, with emergency eyewash and shower stations readily available. Only trained personnel should handle this substance, following strict safety protocols to prevent inhalation, skin contact, or ingestion.

How to store diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane correctly?

Diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane must be stored in a secure, well-ventilated area away from heat sources and incompatible materials. Due to its ADR Class 6.1 Packing Group I classification, it requires specialized toxic substance storage conditions. The storage area should be locked, clearly labeled, and accessible only to authorized personnel. Temperature-controlled environments and secondary containment systems are recommended to prevent accidental releases and maintain product stability.

What to do in case of contact with diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane?

Immediate medical attention is critical for any contact with diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane due to its extreme toxicity. For skin contact, remove contaminated clothing and rinse with copious water for at least 15 minutes. If inhaled, move to fresh air immediately and seek emergency medical care. For eye contact, flush with water for 15 minutes minimum. In case of ingestion, do not induce vomiting and contact poison control immediately.

How to dispose of diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane appropriately?

Diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane must be disposed of through licensed hazardous waste contractors due to its high toxicity and environmental hazard classification. The substance cannot be disposed of in regular waste streams and requires specialized treatment methods such as high-temperature incineration or chemical neutralization. All disposal activities must comply with local and EU waste regulations, including proper documentation and manifesting requirements for toxic substances.

How to transport diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane?

Diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane is classified under ADR Class 6.1 Packing Group I, indicating highly toxic substances requiring maximum transport safety measures. Specialized UN-approved packaging and labeling with GHS06 and GHS09 pictograms are mandatory. Transport must be conducted by certified dangerous goods carriers with appropriate emergency response equipment. Detailed shipping documentation and emergency response information must accompany all shipments in accordance with international transport regulations.

Is diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane subject to specific regulations?

Diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane is subject to strict regulatory oversight under EU REACH and CLP regulations due to its extreme toxicity classification. The substance requires safety data sheets, hazard labeling with 'Danger' signal words, and specific risk management measures. While not currently listed as a Substance of Very High Concern (SVHC), its Acute Tox. 1 and aquatic hazard classifications impose significant regulatory restrictions on its manufacture, import, and use within Europe.

Where to buy diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane in Europe?

Diethoxy-(4-methylsulfinylphenoxy)-sulfanylidene-lambda5-phosphane is available through OYSI, a specialized European distributor of technical chemicals. Due to its extreme toxicity classification and regulatory restrictions, this substance is only supplied to qualified industrial customers with appropriate safety certifications and handling capabilities. OYSI ensures full regulatory compliance, proper packaging, and documentation for safe delivery across European markets, providing technical support for specialized chemical requirements.

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Data Sources

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