[(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 aquatic toxicity concerns. This complex organophosphorus compound represents an advanced photoinitiator system designed for UV-curing applications in industrial processes. With its molecular formula C26H35O7P and molecular weight of 490.5 g/mol, this substance features a sophisticated structure combining dimethoxyphenyl groups with a phosphoryl moiety and a branched alkyl chain. The presence of multiple methoxy substituents and the phosphorus center contributes to its unique photochemical reactivity profile. From a safety perspective, this compound requires careful handling due to its classification as a skin sensitizer (Skin Sens. 1) and its significant environmental impact as an acute and chronic aquatic toxicant. The GHS07 and GHS09 pictograms reflect these health and environmental hazards, necessitating appropriate personal protective equipment and waste management protocols. Its ADR Class 9 classification indicates it falls under miscellaneous dangerous goods for transportation purposes. The compound finds primary applications in UV-curing formulations for coatings, inks, and adhesives where efficient photoinitiation is critical. It serves as a specialized photoinitiator in high-performance applications requiring precise cure rates and excellent surface properties. Industrial applications also extend to photopolymerization processes in electronics and automotive industries. Unlike simpler organophosphorus compounds such as butyl(triphenyl)boranuide;tetrabutylazanium, this molecule offers enhanced solubility and compatibility in complex formulations. OYSI maintains comprehensive technical documentation and regulatory compliance support for this specialized photoinitiator compound, ensuring customers receive detailed safety data sheets and application guidance for their specific industrial requirements.

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 aromatic rings with methoxy substituents linked through a phosphoryl group. It is classified as a skin sensitizer and poses environmental hazards to aquatic life.

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 a solid organophosphorus compound at room temperature with a molecular weight of 490.5 g/mol. The compound contains multiple aromatic rings with methoxy groups and a branched alkyl chain, suggesting limited water solubility but good solubility in organic solvents. Its complex structure indicates stability under normal conditions with specific chemical reactivity through the phosphoryl functional group.

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 primarily used as a photoinitiator in industrial applications. This organophosphorus compound serves in UV-curing systems for coatings, inks, and polymer formulations where controlled photochemical reactions are required. Its complex aromatic structure makes it particularly effective in specialized industrial processes requiring precise light-activated chemical reactions in professional manufacturing environments.

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 properties. Operators must wear protective gloves, safety goggles, and protective clothing to prevent skin contact. Work should be conducted in well-ventilated areas or under fume extraction systems. Given its aquatic toxicity, prevent environmental release and ensure proper containment measures are in place during use and handling operations.

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 tightly sealed containers in a cool, dry place away from direct sunlight. As a photoinitiator compound, protect from UV light exposure to prevent unwanted activation. Store separately from incompatible materials and ensure good ventilation in storage areas. Keep containers properly labeled and maintain storage temperatures within recommended ranges to preserve product stability and prevent degradation.

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

[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone contact requires immediate action due to its skin sensitization potential. For skin contact, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. In case of eye contact, rinse immediately with clean water for 15 minutes. If irritation persists or allergic reactions develop, seek medical attention promptly and provide the safety data sheet to medical personnel.

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

[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone must be disposed of as hazardous waste due to its environmental classification. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Never discharge into sewers, water courses, or soil due to its aquatic toxicity. Contaminated packaging should also be treated as hazardous waste. Follow local and national waste regulations and maintain proper documentation for waste disposal tracking.

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. Transport requires appropriate packaging according to ADR regulations for Class 9 substances. Vehicles must carry proper documentation, emergency response information, and appropriate marking and labeling. Drivers need ADR training certification. Ensure packages are secured against damage and leakage during transport and comply with quantity limitations for different transport categories.

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

[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone is subject to REACH regulation for chemical registration and CLP regulation for classification and labeling in Europe. While not currently listed as a SVHC substance, its Skin Sens. 1 and aquatic toxicity classifications require compliance with occupational safety standards and environmental protection measures. Users must ensure proper risk assessment, implement appropriate risk management measures, and maintain safety data sheets for regulatory compliance.

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 technical chemicals. OYSI provides this photoinitiator compound to industrial customers across Europe with proper documentation, safety data sheets, and regulatory compliance support. As a professional chemical distributor, OYSI ensures product quality, proper packaging, and adherence to transportation regulations for safe delivery to qualified industrial users and research institutions.

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

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[(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone is a dangerous good. We support you with labeling, packaging, and transport documentation.

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Data Sources

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