| Product Identification | Back 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 Properties | Back 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 Measures | Back 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. |
| Hazards Identification | Back 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 Protection | Back 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 Measures | Back 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. |
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