| Identification | |
| Name: | Theaflavin digallate |
| Synonyms: | [8-[(2R,3R)-3,5-dihydroxy-7-(3,4,5-trihydroxybenzoyl)oxy-chroman-2-yl]-2,10-dihydroxy-3-oxo-5-[(3R)-3,5,7-trihydroxychroman-2-yl]-11-bicyclo[5.4.0]undeca-1,4,6,8,10-pentaenyl] 3,4,5-trihydroxybenzoate;1,8-Bis(3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-2-yl)-3,4,6-trihydroxy-5H-benzocyclohepten-5-one digallate;Teaflavin digallate;Benzoic acid, 3,4,5-trimethoxy-, diester with 1,8-bis(3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-2-yl)-3,4,6-trihydroxy-5H-benzocyclohepten-5-one; |
| CAS: | 33377-72-9 |
| Molecular Formula: | C43H32O20 |
| Molecular Weight: | 868.7022 |
| InChI: | InChI=1/C43H32O20/c44-17-7-23(45)21-12-30(52)39(61-33(21)8-17)14-1-19-20(11-32(54)41(35(19)38(57)29(51)2-14)63-43(59)16-5-27(49)37(56)28(50)6-16)40-31(53)13-22-24(46)9-18(10-34(22)62-40)60-42(58)15-3-25(47)36(55)26(48)4-15/h1-11,30-31,39-40,44-50,52-56H,12-13H2,(H,51,57)/t30-,31-,39?,40-/m1/s1 |
| Molecular Structure: | ![(C43H32O20) [8-[(2R,3R)-3,5-dihydroxy-7-(3,4,5-trihydroxybenzoyl)oxy-chroman-2-yl]-2,10-dihydroxy-3-oxo-5-[(3R)-...](https://img.guidechem.com/cas/gif/33377-72-9.gif) |
| Properties | |
| Flash Point: | 401.7°C |
| Boiling Point: | 1320.5°Cat760mmHg |
| Density: | 1.97g/cm3 |
| Refractive index: | 1.908 |
| Specification: |
Theaflavin digallate , its cas register number is 33377-72-9. It also can be called Teaflavin digallate ; Benzoic acid, 3,4,5-trimethoxy-, diester with 1,8-bis(3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-2-yl)-3,4,6-trihydroxy-5H-benzocyclohepten-5-one ; and 1,8-Bis(3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-2-yl)-3,4,6-trihydroxy-5H-benzocyclohepten-5-one digallate . Theaflavin digallate (CAS NO.33377-72-9) is a antioxidantpolyphenol found in black tea, and a theaflavin derivative; and it is a potent scavenger of superoxide, even more so than EGCG. |
| Flash Point: | 401.7°C |
| Safety Data | |
 |
|
