Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity
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EGCG(989-51-5)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity

Product Identification

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 Properties

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 Measures

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 Storage

Storage
Keep tightly closed. Store at 2-8 C.

Hazards Identification

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 Protection

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 Measures

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 Measures

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 Reactivity

Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Combustion Products
Emits toxic fumes under fire conditions.
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