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CAS No 73-40-5 , 2-amino-3,7-dihydropurin-6-one

  • Name: 2-amino-3,7-dihydropurin-6-one
  • Synonyms: 2-Aminohypoxanthine; Mearlmaid; 73-40-5; Stella Polaris; Guanin;2-Amino-6-hydroxypurine;2-amino-3,7-dihydropurin-6-one; Pearl essence; Guanine enol;
  • CAS Registry Number:
  • Melting Point: 360 ºC
  • Density: 2.19 g/cm3
  • Refractive index: 2.047
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • EINECS: 200-799-8
  • Molecular Weight: 151.1261
  • InchiKey: UYTPUPDQBNUYGX-UHFFFAOYSA-N
  • InChI: InChI=1S/C5H5N5O/c6-5-9-3-2(4(11)10-5)7-1-8-3/h1H,(H4,6,7,8,9,10,11)
  • Risk Statements: S26;S37/39
  • Molecular Formula: C5H5N5O
  • Molecular Structure:CAS No:73-40-5 2-amino-3,7-dihydropurin-6-one
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73-40-5 Guanine

  • Name:Guanine Synonym:C.I. 75170; C.I. Natural White 1; 2-Amino-1,7-Dihydro-6H-Purin-6-One; 2-Aminohypoxanthine; 2-Amino-6-Hydroxypurine; 2-Amino-3,7-Dihydro-6H-Purin-6-One; 6-Hydroxy-2-Aminopurine; 6-N-Hydroxyaminopurine; Akos B019969; 2-Amino-1,9-Di...
  • Min. Order: 5000
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  • China Hubei Yuancheng Saichuang Technology Co., Ltd. [Manufacturer, Trading Company]
  • Tel: 86-027-50756244
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  • Address: 496# Zhongshan Road,Wuchang, Wuhan,Hubei,China wuhan ,HubeiChina
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73-40-5 Guanine

  • Guanine
  • Germany chemcube UG [Manufacturer]
  • Tel: +49 (22 08) 7 75 04 06
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    +49 (32 12) 1 00 74 76
  • Address: chemcube UG
    Salierweg 1
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73-40-5 Guanine

  • 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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73-40-5 Guanine

  • Guanine
  • United States INDOFINE Chemical Co., Inc. [Manufacturer]
  • Tel: (908) 359-6778
  • Fax: (908) 359-1179
  • Address: 121 Stryker Lane
    Bldg 30, Suite 1
    Hillsborough, NJ 08844 ,United States
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73-40-5 2-Amino-1,9-dihydro-6H-purin-6-one

  • 2-Amino-1,9-dihydro-6H-purin-6-one
  • Switzerland CONNECT MARKETING GMBH [Manufacturer]
  • Tel: +41 81 740 58 50
  • Fax: +41 81 740 58 51
  • Address: CONNECT MARKETING GMBH
    BAHNWEG NORD 35
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    SWITZERLAND ,Switzerland
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73-40-5 Guanine

  • GuanineGuanine, 98%
  • China PMIDA AGROCHEMICAL CO.,LTD [Manufacturer]
  • Tel: +86-023-67030808-8010
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  • Address: 17F,Venus Science Incubate Center,No.60 Xingguang Road,New North Zone401121 ChongqingCHINA Chongqing,China
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73-40-5 Guanine

  • Guanine, 98%
  • China Shanghai Rainbow Chemistry Co., Ltd. [Manufacturer]
  • Tel: +86-21-64968086
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  • Address: Room 128, Building B, No. 8 Lane 1305, Huajing Road, Xuhui District, Shanghai, P.R. China 200000 Shanghai CHINA Shanghai,China
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73-40-5 2-Amino-6-hydroxypurine

  • 2-Amino-6-hydroxypurine
  • Hong kong Frapp's Pharma (Hongkong) Co.,Ltd [Manufacturer]
  • Tel: +852 8130 0917
  • Fax: +852 8130 0927
  • Address: Room 801,Mongkok Harbour Centre,638 Shanghai Street,Mongkok,Kowloon,Hongkang518001 MongkokHONG KONG Mongkok,Hong kong
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73-40-5 Guanine

  • United States HBCChem, Inc. [Manufacturers]
  • Tel: +1-510-219-6317
  • Fax: +1-510-675-0318
  • Address: Union City,CaliforniaUnited States
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73-40-5 Guanine

  • Guanine
  • United States Chem-Impex International, Inc. [Manufacturer]
  • Tel: 630 766 2112
  • Fax: 630 766 2218
  • Address: 935 Dillon Drive Wood Dale IL 60191 USA ,United States
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References of 2-amino-3,7-dihydropurin-6-one
Title: Guanine
CAS Registry Number: 73-40-5
CAS Name: 2-Amino-1,7-dihydro-6H-purin-6-one
Synonyms: 2-aminohypoxanthine
Molecular Formula: C5H5N5O
Molecular Weight: 151.13
Percent Composition: C 39.74%, H 3.33%, N 46.34%, O 10.59%
Literature References: Constituent of nucleic acids; widespread in animal and plant kingdom. First isolated from guano. Syntheses: Fisher, Ber. 30, 2226 (1897); Traube, ibid. 33, 1371 (1900); DE 134984 (1903); DE 158591 (1903); DE 162336 (1904). Prepn of 15N-isotopic guanine following Traube's synthesis: Plentl, Schoenheimer, J. Biol. Chem. 153, 203 (1944). Several desmotropic forms. Crystal structure of hydrochloride monohydrate: Broomhead, Acta Crystallogr. 4, 92 (1951). Reviews: Shapiro, Prog. Nucleic Acid Res. Mol. Biol. 8, 73-112 (1968); Ts'o, "Bases, Nucleosides and Nucleotides" in Basic Principles in Nucleic Acid Chemistry vol. 1, P. O. P. Ts'o, Ed. (Academic Press, New York, 1974) pp 453-584.
Properties: Usually amorphous. Small rhombic crystals by slow evaporation of aq soln contg large excess of NH3. Dec above 360° with partial sublimation. uv max (pH 6.2): 246, 275 nm (e ′ 10-3 10.7, 8.1). Freely sol in ammonia water, aq KOH solns, dil acids; sparingly sol in alcohol, ether. Almost insol in water. pKb 3.22; pKa 9.92, detd at 40°. Many compds with acids, bases and metals have been prepared.
pKa: pKb 3.22; pKa 9.92, detd at 40°
Absorption maximum: uv max (pH 6.2): 246, 275 nm (e ′ 10-3 10.7, 8.1)
 
Derivative Type: Hydrochloride monohydrate
Molecular Formula: C5H5N5O.HCl.H2O
Molecular Weight: 205.60
Percent Composition: C 29.21%, H 3.92%, N 34.06%, O 15.56%, Cl 17.24%
Properties: Cryst powder. Loses H2O at 100°, HCl at 200°. Practically insol in water, alcohol, ether; sol in acidulated water.