Home > Name List By 3 > 3,4,5-trihydroxy-1,8-bis[(2R,3R)-3,5,7-trihydroxy-3, 4-dihydro-2H-chromen-2-yl]benzo[7]annulen-6-one

CAS No 4670-05-7 , 3,4,5-trihydroxy-1,8-bis[(2R,3R)-3,5,7-trihydroxy-3,
4-dihydro-2H-chromen-2-yl]benzo[7]annulen-6-one

  • Name: 3,4,5-trihydroxy-1,8-bis[(2R,3R)-3,5,7-trihydroxy-3,
    4-dihydro-2H-chromen-2-yl]benzo[7]annulen-6-one
  • Synonyms: Theaflavine; 4670-05-7; (-)-Theaflavin; Theaflavin 1; Spectrum3_000698; Spectrum2_001765; SpecPlus_000296;3,4,5-trihydroxy-1,8-bis[(2R,3R)-3,5,7-trihydroxy-3,
    4-dihydro-2H-chromen-2-yl]benzo[7]annulen-6-one; AC1L3FXZ; Spectrum_000527;
  • CAS Registry Number:
  • Flash Point: 336.5°C
  • Boiling Point: 1003.9°Cat760mmHg
  • Density: 1.87g/cm3
  • Flash Point: 336.5°C
  • Molecular Weight: 564.49366
  • InchiKey: IPMYMEWFZKHGAX-ZKSIBHASSA-N
  • InChI: InChI=1S/C29H24O12/c30-11-3-17(32)15-8-21(36)28(40-23(15)5-11)10-1-13-14
    (7-20(35)27(39)25(13)26(38)19(34)2-10)29-22(37)9-16-18(33)4-12(31)6-24
    (16)41-29/h1-7,21-22,28-33,35-37,39H,8-9H2,(H,34,38)/t21-,22-,28-,
    29-/m1/s1
  • Molecular Formula: C29H24O12
  • Molecular Structure:CAS No:4670-05-7 3,4,5-trihydroxy-1,8-bis[(2R,3R)-3,5,7-trihydroxy-3,<br />4-dihydro-2H-chromen-2-yl]benzo[7]annulen-6-one

Related products

Select to

4670-05-7 5H-Benzocyclohepten-5-one,1,8-bis[(2R,3R)-3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-2-yl]-3,4,6-trihydroxy-

Contact Supplier

4670-05-7 5H-Benzocyclohepten-5-one,1,8-bis[(2R,3R)-3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-2-yl]-3,4,6-trihydroxy-

  • China Ningbo Ubest Import&Export Co.,Ltd [Importer/Exporter]
  • Tel: +86-575-86036626 +86-574-87972156
  • Fax: +86-575-86041458
  • Address: 10A-3,Block A, Jiayi Square, Xinchang County, Zhejiang, China Xinchang,ZhejiangChina
Contact Supplier

4670-05-7 5H-Benzocyclohepten-5-one,1,8-bis[(2R,3R)-3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-2-yl]-3,4,6-trihydroxy-

  • China Shanghai Angoal Chemical Co., Ltd. [Manufacturers]
  • Tel: +86-21-58358698
  • Fax: +86-21-58358428
  • Address: Rm. 1406, Hua Shen Mansion, No. 1085 Pudong Road South Shanghai,shanghaiChina
Contact Supplier

4670-05-7 Theaflavin

  • China Botaniex Inc. [Manufacturers]
  • Tel: +86-(731)-8871-8666
  • Fax: +86-(731)-8888-8299
  • Address: 4th Floor (East), No.7 Bldg, Oak Industrial Park 8 Lutian Road, Lu-Valley High-Tech Development Dist, Changsha, Hunan 410205, Changsha,HunanChina
Contact Supplier

4670-05-7 5H-Benzocyclohepten-5-one,1,8-bis[(2R,3R)-3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-2-yl]-3,4,6-trihydroxy-

  • China dehe bio tech co ltd [Manufacturers]
  • Tel: +86-510-86401200
  • Fax: +86-510-86408200
  • Address: 618 chengzhang road jiangyin jiangsu china jiangyin,jiangsuChina
Contact Supplier

Select to

1/1
References of 3,4,5-trihydroxy-1,8-bis[(2R,3R)-3,5,7-trihydroxy-3,
4-dihydro-2H-chromen-2-yl]benzo[7]annulen-6-one
Title: Theaflavine
CAS Registry Number: 4670-05-7
CAS Name: 1,8-Bis[(2R,3R)-3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-2-yl]-3,4,6-trihydroxy-5H-benzocyclohepten-5-one
Molecular Formula: C29H24O12
Molecular Weight: 564.49
Percent Composition: C 61.70%, H 4.29%, O 34.01%
Literature References: From black tea extracts: Roberts, Myers, J. Sci. Food Agric. 10, 176 (1959). Structure: Takino et al., Tetrahedron Lett. 1965, 4019. Configuration: Brown et al., ibid. 1966, 1193.
Properties: Crystals from water, dec 237-240°. Absorption max (ethanol): 216, 271, 384, 470 nm (e 35500, 19500, 8700, 3600).
Absorption maximum: Absorption max (ethanol): 216, 271, 384, 470 nm (e 35500, 19500, 8700, 3600)
 
Derivative Type: Nonaacetate
Molecular Formula: C47H42O21
Molecular Weight: 942.82
Percent Composition: C 59.87%, H 4.49%, O 35.64%
Properties: Crystals, mp 167-168°. uv max (alc): 211, 250, 314, 353 nm (e 25100, 13200, 7100, 4700).
Melting point: mp 167-168°
Absorption maximum: uv max (alc): 211, 250, 314, 353 nm (e 25100, 13200, 7100, 4700)