Agent Name

2,2-Dimethoxy-2-phenylacetophenone

CAS Number

24650-42-8

Formula

C16-H16-O3

Major Category

Other Classes

Synonyms

1,2-Diphenyl-2,2-dimethoxyethanone; 1,2-Diphenylethane-1,2-dione, dimethyl ketal; 2,2-Dimethoxy-1,2-diphenylethanone; 2,2-Dimethoxyphenylacetophenone; 2-Phenyl-2,2-dimethoxyacetophenone; alpha,alpha-Dimethoxy-alpha-phenylacetophenone; alpha,alpha-Dimethoxydeoxybenzoin; Benzil dimethyl acetal (6CI); Benzil dimethyl ketal; Benzil mono(dimethyl acetal); Benzil mono(dimethyl ketal); DMPA; Esacure KB 1; IR 651; IRG 651; Irgacure 621; Irgacure 641; Irgacure 651; Irgacure 951; Irgacure E 651; Irgacure I 651; Kayacure BDMK; KB 1; Lucirin BDK; omega,omega,Dimethoxy-omega-phenylacetophenone; Photomer 51; 2,2-Dimethoxy-1,2-diphenylethan-1-one; Ethanone, 2,2-dimethoxy-1,2-diphenyl-; [ChemIDplus] Benzil alpha,alpha-dimethyl acetal; [Sigma-Aldrich MSDS] Omnirad BDK; [IGM Resins MSDS] UN3077

Category

Other Aromatic Compounds

Description

Colorless crystalline solid; [Sigma-Aldrich MSDS]

Sources/Uses

Used to make large scale chemicals; [ExPub: ECHA REACH Registrations] Used as a photo-initiator for UV-curable inks, coatings, adhesives, fillers, etc.; [IGM Resins MSDS]

Comments

Causes other liver changes and changes in liver and kidney weights in 90-day constant oral studies of rats; [RTECS] May cause irritation and respiratory sensitization; Causes photosensitivity, with light induced allergic reactions ranging from sunburn-like reactions to edematous, vesiculated lesions, or bullae; [Sigma-Aldrich MSDS] A mild eye irritant; No sensitization observed in experimental animals; [IGM Resins MSDS] See "Benzoin."

Exposure Assessment
Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Environmentally hazardous substances, solid, n.o.s."

Adverse Effects
Dermatotoxin

Contact Dermatitis, Photoallergic

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: