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CAS No 437-50-3 , 1,7-dihydroxy-3-methoxyxanthen-9-one

  • Name: 1,7-dihydroxy-3-methoxyxanthen-9-one
  • Synonyms: Gentisine; GENTIANIC ACID;Gentianin; EINECS 207-114-1; 1,7-Dihydroxy-3-methoxyxanthen-9-one;1,7-dihydroxy-3-methoxyxanthen-9-one; 1,7-Dihydroxy-3-methoxyxanthone; CCRIS 3151;
  • CAS Registry Number:
  • Flash Point: 205.2°C
  • Boiling Point: 519.9°Cat760mmHg
  • Density: 1.48g/cm3
  • Refractive index: 1.68
  • Flash Point: 205.2°C
  • EINECS: 207-114-1
  • Molecular Weight: 258.2262
  • InchiKey: XOXYHGOIRWABTC-UHFFFAOYSA-N
  • InChI: InChI=1S/C14H10O5/c1-18-8-5-10(16)13-12(6-8)19-11-3-2-7(15)4-9(11)14(13)
    17/h2-6,15-16H,1H3
  • Molecular Formula: C14H10O5
  • Molecular Structure:CAS No:437-50-3 1,7-dihydroxy-3-methoxyxanthen-9-one
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437-50-3 GENTISIN(P)

  • GENTISIN(P)4,7-Dihydroxy-2-methoxyxanthone
  • United States ChromaDex Inc. [Manufacturer]
  • Tel: 949-419-0288
  • Fax: 949-419-0294
  • Address: ChromaDex Inc.
    10005 Muirlands Blvd. Suite G - First Floor
    Irvine, CA 92618 null,nullUnited States
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437-50-3 Gentisin

  • Gentisin
  • Germany CHEMOS GmbH [Manufacturer]
  • Tel: 0049 9402/9336 0
  • Fax: 0049 9402/9336 13
  • Address: CHEMOS GmbH
    Werner-von-Siemensstr. 3
    93128 Regenstauf
    Germany null,nullGermany
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437-50-3 GENTISIN

  • GENTISIN
  • Hong kong Advanced Technology & Industrial Co., Ltd. [Manufacturer]
  • Tel: (852) 2390 2293/ (852) 2394 5546
  • Fax: (852) 2789 8314
  • Address: Unit B, 1/F., Cheong Shing Bldg.,
    17 Walnut St., Tai Kok Tsui, Kln,
    Hong Kong null,nullHong kong
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437-50-3 GENTISIN

  • China Nanjing Chemlin Chemical Industry Co.,Ltd. [Manufacturer]
  • Tel: +86 25 8369-7070/ +86 138 51816776 (Mobile)
  • Fax: +86 25 8345-3275
  • Address: Rm.902 Longyin Plaza,
    No. 217 Zhongshan Rd.
    (N)Nanjing 210009,China null,nullChina
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References of 1,7-dihydroxy-3-methoxyxanthen-9-one
Title: Gentisin
CAS Registry Number: 437-50-3
CAS Name: 1,7-Dihydroxy-3-methoxy-9H-xanthen-9-one
Synonyms: 4,7-dihydroxy-2-methoxyxanthone; gentianic acid; gentianin; gentiin
Molecular Formula: C14H10O5
Molecular Weight: 258.23
Percent Composition: C 65.12%, H 3.90%, O 30.98%
Literature References: From root of Gentiana lutea L., Gentianaceae: Henry, Caventou, J. Pharm. Chim. 1821, 178; Canonica, Pelizzoni, Gazz. Chim. Ital. 85, 1007 (1955). Structure: Korte, Ber. 87, 1357 (1954). Synthesis: Anand, Venkataraman, Proc. Indian Acad. Sci. 25A, 438 (1947); Rao, Seshadri, ibid. 37A, 710 (1953).
Properties: Yellow needles from alc, mp 266-267°. Absorption max (methanol): 260, 275, 315, 410 nm (log e 4.35, 4.30, 4.10, 3.70). Very slightly sol in water or organic solvents.
Melting point: mp 266-267°
Absorption maximum: Absorption max (methanol): 260, 275, 315, 410 nm (log e 4.35, 4.30, 4.10, 3.70)
 
Derivative Type: Diacetate
Molecular Formula: C18H14O7
Molecular Weight: 342.30
Percent Composition: C 63.16%, H 4.12%, O 32.72%
Properties: Crystals from alc, mp 196-197°. uv max (methanol): 240, 270, 300 nm (log e 4.58, 4.05, 4.10).
Melting point: mp 196-197°
Absorption maximum: uv max (methanol): 240, 270, 300 nm (log e 4.58, 4.05, 4.10)