[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone

C26H35O7P

CAS145052-34-2
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
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Identification

CAS Number
145052-34-2
UN Number
3077
Index Number
015-163-00-3
PubChem CID
164459

Physical-chemical properties

Molecular Formula
C26H35O7P
Molar Mass
490.50 g/mol
IUPAC Name
[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone

Chemical Identifiers

InChI
InChI=1S/C26H35O7P/c1-17(15-26(2,3)4)16-34(29,24(27)22-18(30-5)11-9-12-19(22)31-6)25(28)23-20(32-7)13-10-14-21(23)33-8/h9-14,17H,15-16H2,1-8H3
InChI Key
LFOXEOLGJPJZAA-UHFFFAOYSA-N

Overview

[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone (CAS 145052-34-2) is an organophosphorus compound with photoinitiator properties and skin sensitization potential. This complex organophosphorus molecule represents a specialized photoinitiator compound designed for advanced polymerization applications. With its molecular formula C26H35O7P and molecular weight of 490.5 g/mol, this substance combines multiple aromatic rings with methoxy substituents and a phosphoryl group, creating a structure optimized for photochemical activation. The compound's architecture, featuring two 2,6-dimethoxyphenyl moieties connected through a phosphoryl bridge with a trimethylpentyl chain, provides excellent solubility characteristics and photosensitive properties essential for UV-curing applications. The substance requires careful handling due to its classification as a skin sensitizer (Skin Sens. 1) and aquatic hazard (Aquatic Acute 1; Aquatic Chronic 1), necessitating appropriate personal protective equipment and environmental precautions. Its GHS07 and GHS09 pictograms reflect these health and environmental concerns, while the ADR Class 9 classification indicates miscellaneous dangerous goods transportation requirements. Unlike simpler organophosphorus compounds or related photoinitiator systems such as those incorporating butyl(triphenyl)boranuide;tetrabutylazanium, this molecule offers enhanced stability and performance characteristics. Primary industrial applications include UV-curable coatings, photopolymer formulations, and specialized printing inks where controlled radical polymerization is required. The compound's unique structure provides superior performance in applications demanding high-efficiency photoinitiating properties while maintaining compatibility with various polymer systems. Its dimethoxyphenyl groups contribute to excellent absorption characteristics in the UV spectrum, making it particularly valuable for industrial curing processes. OYSI provides this specialized photoinitiator compound to European customers requiring high-performance materials for advanced polymerization applications.

Safety & Classification

Warning
Classification:

Skin Sens. 1; Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H317

May cause an allergic skin reaction.

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

Irritant

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:

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 Number3077
ADR Class9
Packing GroupIII
Tunnel Code-
Proper Shipping NameBis(2,6-dimethoxybenzoyl)-2,4,4-trimethylpentylphosphinoxid
Marine PollutantNo

Frequently Asked Questions

What is [(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone?

[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone is an organophosphorus compound with the molecular formula C26H35O7P and CAS number 145052-34-2. This complex molecule has a molecular weight of 490.5 g/mol and features multiple methoxy groups and a phosphoryl moiety in its structure. It is classified as a skin sensitizer and poses environmental hazards to aquatic life, requiring careful handling and appropriate safety measures during use.

What are the physicochemical properties of [(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone?

[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone is an organic compound with a molecular weight of 490.5 g/mol and molecular formula C26H35O7P. The compound contains phosphorus and multiple aromatic rings with methoxy substituents. Due to its complex structure with both hydrophobic and polar regions, its solubility characteristics will vary depending on the solvent system. Specific physical properties such as melting point, boiling point, and exact appearance require detailed analytical characterization.

What is [(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone used for?

[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone is used primarily in specialized industrial applications where organophosphorus compounds are required. Its complex structure suggests potential use in advanced materials, specialty chemicals, or as an intermediate in pharmaceutical or agrochemical synthesis. The specific applications depend on the unique chemical properties conferred by its phosphoryl group and multiple aromatic substituents. Professional users should consult technical literature for detailed application guidance.

How to handle [(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone safely?

[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone requires careful handling due to its skin sensitization potential. Use appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing to prevent skin and eye contact. Work in well-ventilated areas or under fume extraction to minimize inhalation exposure. Avoid release to the environment due to its aquatic toxicity classification. Always follow good laboratory practices and consult the safety data sheet before handling.

How to store [(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone correctly?

[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone should be stored in a cool, dry place away from heat sources and direct sunlight. Keep containers tightly sealed to prevent contamination and moisture uptake. Store away from incompatible materials and ensure proper labeling according to GHS requirements with Warning signal word and appropriate pictograms (GHS07, GHS09). Maintain proper inventory records and ensure storage areas have appropriate containment measures to prevent environmental release.

What to do in case of contact with [(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone?

Skin contact with [(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone requires immediate washing with plenty of water and soap due to its skin sensitization properties. Remove contaminated clothing and wash before reuse. For eye contact, rinse thoroughly with water for at least 15 minutes. If inhaled, move to fresh air immediately. Seek medical attention if irritation develops or persists. Always consult the safety data sheet for complete first aid procedures and contact emergency services if necessary.

How to dispose of [(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone appropriately?

[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone must be disposed of through authorized hazardous waste contractors due to its environmental hazard classification. Never discharge to sewers, waterways, or soil due to its acute and chronic aquatic toxicity. Collect waste in appropriate containers, properly labeled according to waste regulations. Follow local and national waste disposal regulations, including proper waste classification codes. Contact certified waste management companies experienced in handling organophosphorus compounds for safe disposal.

How to transport [(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone?

[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone is classified as ADR Class 9 (Miscellaneous dangerous goods), Packing Group III for transportation. This classification requires appropriate packaging, marking, and documentation according to ADR regulations. Packages must display proper hazard labels and shipping names. Transport vehicles need appropriate placarding for Class 9 materials. Ensure drivers have proper training and documentation. Follow all applicable national and international transport regulations for hazardous materials.

Is [(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone subject to particular regulations?

[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone is subject to REACH regulation for registration, evaluation, and authorization in Europe. It must be classified and labeled according to CLP regulation with GHS pictograms GHS07 and GHS09, and Warning signal word. The compound is not currently listed as a Substance of Very High Concern (SVHC). Users must comply with occupational exposure limits and environmental protection requirements due to its hazard classification.

Where to buy [(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone in Europe?

[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone is available through OYSI, a specialized European distributor of chemical products. OYSI provides this organophosphorus compound to professional users across Europe with proper documentation, safety data sheets, and regulatory compliance. As a technical chemical requiring specialized handling, it is typically available to qualified industrial users and research institutions. Contact OYSI directly for availability, technical specifications, and ordering information for this specialized compound.

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Data Sources

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