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EGCG(989-51-5)

EGCG(989-51-5)
Product IdentificationBack to Contents
【Product Name】

EGCG
【Synonyms】

(-)-Epigallocatechin-3-o-gallate
(-)-Epigallocatechol gallate
[(2R,3R)-5,7-dihydroxy-2-(3,4,5-trihydroxyphenyl)chroman-3-yl] 3,4,5-trihydroxybenzoate
Epigallocatechin 3-gallate
Tea catechin
【CAS】

989-51-5
【Formula】

C22H18O11
【Molecular Weight】

458.38
【RTECS】

KB5200000
【Merck】

12,3568
Physical and Chemical PropertiesBack to Contents
【Appearance】

Solid. The most abundant catechin in tea.
【Solubility in water】

Slightly soluble
【Melting Point】

140 - 142
【Density】

1.90 g/cm3 (20 C)
【pKa/pKb】

7.75 (pKa)
【Partition Coefficient】

2.08
【Usage】

An antioxidant that helps protect the skin from uv radiation-induced damage and tumor formation.
First Aid MeasuresBack to Contents
【Ingestion】

If swallowed, wash out mouth with water provided person is conscious. Call a physician.
【Inhalation】

If inhaled, remove to fresh air. If breathing becomes difficult, call a physician.
【Skin】

In case of contact, immediately wash skin with soap and copious amounts of water.
【Eyes】

In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.
Handling and StorageBack to Contents
【Storage】

Keep tightly closed. Store at 2-8 C.
Hazards IdentificationBack to Contents
【Ingestion】

May be harmful if swallowed.
【Inhalation】

Material may be irritating to mucous membranes and upper respiratory tract. May be harmful if inhaled.
【Skin】

May cause irritation. May be harmful if absorbed through the skin.
【Eyes】

May cause irritation.
Exposure Controls/Personal ProtectionBack to Contents
【Personal Protection】

Chemical safety goggles, protective gloves.
【Respirators】

Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Respiratory protection is not required. Where protection from nuisance levels of dusts are desired, use type N95 (US) or type P1 (EN 143) dust masks.
Fire Fighting MeasuresBack to Contents
【Fire Fighting】

Extinguish with water spray, carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability and ReactivityBack to Contents
【Stability】

Stable at normal temperatures and pressures.
【Incompatibilities】

Strong oxidizing agents.
【Combustion Products】

Emits toxic fumes under fire conditions.
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