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CAS No 69-89-6 , 3,7-dihydropurine-2,6-dione

  • Name: 3,7-dihydropurine-2,6-dione
  • Synonyms: 2,6-dioxopurine; Pseudoxanthine; 69-89-6; Xanthin;3,7-dihydropurine-2,6-dione; Isoxanthine;2,6-Dihydroxypurine; 1H-Purine-2,6-diol; Xanthic oxide;
  • CAS Registry Number:
  • Melting Point: 300 ºC
  • Density: 1.637 g/cm3
  • Refractive index: 1.5392 (20 C)
  • Safety Statements: R36;R43
  • Hazard Symbols: Xi: Irritant;
  • EINECS: 200-718-6
  • Molecular Weight: 152.11086
  • InchiKey: LRFVTYWOQMYALW-UHFFFAOYSA-N
  • InChI: InChI=1S/C5H4N4O2/c10-4-2-3(7-1-6-2)8-5(11)9-4/h1H,(H3,6,7,8,9,10,11)
  • Risk Statements: S36/37
  • Molecular Formula: C5H4N4O2
  • Molecular Structure:CAS No:69-89-6 3,7-dihydropurine-2,6-dione
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69-89-6 XANTHINE; 99%

  • Germany ABCR GmbH & Co KG [Manufacturer]
  • Tel: +49 721 95061-0
  • Fax: +49 721 95061-80
  • Address: Im Schlehert 10
    76187 Karlsruhe
    Germany ,Germany
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69-89-6 Xanthine

  • China Taiyuan RHF CO., ltd. [Manufacturers]
  • Tel: 0351-7436719
  • Fax: +86-351-7436719
  • Address: Shuangta South Alley 46,2-1, YingZe Area,Taiyuan, ShanXi ,ShanXiChina
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69-89-6 XANTHINE

  • Germany CHEMOS GmbH [Manufacturer]
  • Tel: 0049 9402/9336 0
  • Fax: 0049 9402/9336 13
  • Address: CHEMOS GmbH
    Werner-von-Siemensstr. 3
    93128 Regenstauf
    Germany ,Germany
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69-89-6 Xanthine

  • China Shanghai Hanhong Chemical Co., Ltd. [, Manufacturer, Trading Company, Agent]
  • Tel: +86-(21)-64762736, 64531573
  • Fax: +86-(21)-54291107
  • Address: 206-209, NO.1 Building , NO.245,Jiachuan Road, Xuhui District, Shanghai, Xuhui District,ShanghaiChina
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69-89-6 Xanthine

  • China SHANGHAI HANHONG CHEMICAL CO.,LTD. [Manufacturers]
  • Tel: 021-64545202
  • Fax: 021-54291107
  • Address: Room 207, Zenghe Building , No.245, Jiachuan Road, Xuhui District, Shanghai, China shanghai,shanghaiChina
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69-89-6 Xanthine

  • China BINHAI HANHONG BIOCHEMICAL CO., LTD. [Manufacturers]
  • Tel: +86-21-54302127
  • Fax: +86-21-54291107
  • Address: Room 209,Zonghe Building ,Jiachuan Road 245, Xuhui District, Shanghai, China Shanghai,ShanghaiChina
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69-89-6 Xanthine

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69-89-6 Xanthine

  • Hong kong ADVANCED TECH. & IND. CO., LTD. [Distributor/Wholesaler]
  • Tel: 86-23902293
  • Fax: 86-27898314
  • Address: UNIT B, 1/F, CHEONG SHING IND. BLDG., 17 WALNUT ST., TAI KOK TSUI, KLN, HONG KONG Hong Kong,nilHong kong
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69-89-6 Xanthine

  • Hong kong Achemo Sientific cooperation [Manufacturers]
  • Tel: 00852-39711547
  • Fax: 00852-39711547
  • Address: 38 Plaza,38 Shantung street,MongKoK,kowloon,Hongkong Kowloon,KowloonHong kong
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69-89-6 Xanthine

  • United States Waterstone Technology LLC [Manufacturer]
  • Tel: 317-644-0862/ 317-218-7464
  • Fax: 317-569-8068
  • Address: Waterstone Technology LLC
    12202 Hancock Street
    Carmel, IN. 46032 ,United States
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References of 3,7-dihydropurine-2,6-dione
Title: Xanthine
CAS Registry Number: 69-89-6
CAS Name: 3,7-Dihydro-1H-purine-2,6-dione
Synonyms: 2,6(1H,3H)-purinedione; 2,6-dioxopurine
Molecular Formula: C5H4N4O2
Molecular Weight: 152.11
Percent Composition: C 39.48%, H 2.65%, N 36.83%, O 21.04%
Literature References: Occurs in animal organs, yeast, potatoes, coffee beans, tea. First isolated from urinary bladder stones: Beilstein 26, 447 (1937). Prepd by treating a sulfuric acid soln of guanine with sodium nitrite: Fischer, Ann. 215, 309 (1882). Several other syntheses, cf. Levene, Bass, Nucleic Acids (New York, 1931).
Properties: Scales, plates from water. Dec on heating without melting and with partial sublimation. Kb at 40° = 6.09′10-14; Ka at 40° = 1.19′10-10. Absorption spectrum: Kalckar, J. Biol. Chem. 167, 429 (1947). One gram dissolves in 14.5 liters of water at 16°, in 1.4 liters boiling water; less sol in alcohol. Sol in mineral acids, freely sol in NH4OH and in NaOH solns.
 
Derivative Type: 1,3-Dimethylxanthine see Theophylline
 
Derivative Type: 3,7-Dimethylxanthine see Theobromine
 
Derivative Type: 1,3,7-Trimethylxanthine see Caffeine