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2,2'-Dihydroxy-4,4'-dimethoxybenzophenone

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[Fire Fighting]

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire.
[Fire Potential]

Flammable/combustible material. May be ignited by friction, heat, sparks or flames.
[Ingestion]

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
[Inhalation]

Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
[Skin]

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Remove contaminated clothing and shoes.
[Eyes]

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
[Storage]

Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
[Handling]

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
[Inhalation]

Causes respiratory tract irritation. Causes irritation of mucous membrane.
[Skin]

Causes skin irritation.
[Eyes]

Causes eye irritation.
[Ingestion]

May cause irritation of the digestive tract.
[Hazards]

During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
[EC Risk Phrase]

R 36/37/38
[EC Safety Phrase]

S 26 36
[UN (DOT)]

1325
[Personal Protection]

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
[Respirators]

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
[Exposure Effects]

The toxological properties of this substance have not been fully investigated.
[Appearance]

Yellow granular powder.
[Solubility in water]

Insoluble
[Melting Point]

139 - 140
[Boiling Point]

422
[pKa/pKb]

6.80 (pKa)
[Partition Coefficient]

2.21
[Usage]

Used as a ultraviolet light absorber, esp in paints, plastics.
[Product Name]

2,2'-Dihydroxy-4,4'-dimethoxybenzophenone
[Synonyms]

2,2'-Dihydroxy-4,4'-dimethoxybenzophenone
4,4'-Dimethoxy-2,2'-dihydroxybenzophenone
Cyasorb UV
Methanone, bis(2-hydroxy-4-methoxyphenyl)-
Uvinul 3049
Uvinul D 49
[CAS]

"CASEN_131-54-4.htm">131-54-4
[Formula]

C15H14O5
[Molecular Weight]

274.27
[EINECS]

205-027-3
[RTECS]

DJ0900000
[RTECS Class]

Mutagen
[Merck]

13,1100
[Beilstein/Gmelin]

1887087
[Beilstein Reference]

4-08-00-03505
[Small spills/leaks]

Clean up spills immediately, using the appropriate protective equipment. Provide ventilation.
[Stability]

Stable under normal temperatures and pressures.
[Incompatibilities]

Strong oxidizing agents.
[Decomposition]

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, acrid smoke and fumes.
[Combustion Products]

Fire may produce irritating and/or toxic gases.
[UN Number]

1325
[Hazard Class]

4.1
[Packing Group]

II; III