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Guanine (73-40-5)

Identification
Name:Guanine
Synonyms:6H-purin-6-one, 2-amino-3,7-dihydro-;C.I. Natural White 1;2-amino-3,7-dihydropurin-6-one;Hypoxanthine, 2-amino-;Pearl Essence;Guanine (2-Amino-6-hydroxypurine);Stella Polaris;CI 75170;CI Natural white 1;6H-Purin-6-one,2-amino-1,7-dihydro-;2-Aminohypoxanthine;Dew Pearl;2-Amino-1,7-dihydro-6H-purin-6-one;2-Amino-6-hydroxy-1H-purine;Mearlmaid AA;Gua;Mearlmaid;Guanine enol;6-Hydroxy-2-aminopurine;6H-Purin-6-one, 2-amino-1,7-dihydro- (9CI);6H-Purin-6-one, 2-amino-1,7-dihydro-;C.I. 75170;2-Amino-1,9-dihydro-purin-6-one;2-amino-1,9-dihydro-6H-purin-6-one;Guanin;2-Amino-6-purinol;2-Amino-6-hydroxypurine;Guanine (8CI);
CAS:73-40-5
EINECS: 200-799-8
Molecular Formula: C5H5N5O
Molecular Weight: 151.13
InChI: InChI=1/C5H5N5O/c6-5-9-3-2(4(11)10-5)7-1-8-3/h1H,(H4,6,7,8,9,10,11)
Molecular Structure: (C5H5N5O) 6H-purin-6-one, 2-amino-3,7-dihydro-;C.I. Natural White 1;2-amino-3,7-dihydropurin-6-one;Hypoxanthin...
Properties
Density:2.19 g/cm3
Stability:Stable. Incompatible with strong oxidizing agents.
Refractive index:2.047
Water Solubility:practically insoluble
Solubility:Very soluble
Appearance:white to light yellow crystal powder
Specification:

?Guanine , its cas register number is 73-40-5. It also can be called 2-Amino-1,7-dihydro-6H-purin-6-one ; 2-Amino-6-hydroxypurine ; and 2-Aminohypoxanthine . It is one of the four main nucleobases found in the nucleic acids DNA and RNA, the others being adenine, cytosine, and thymine. It is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Secondly, get medical aid. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product: Wash mouth out with water, and get medical aid immediately.
?Guanine (CAS NO.73-40-5) is present in both DNA and RNA, whereas thymine is usually seen only in DNA, and uracil only in RNA.?The first isolation of guanine was reported in 1844 from the excreta of sea birds, known as guano, which was used as a source of fertilizer.

Color: SEVERAL DESMOTROPIC FORMS; USUALLY AMORPHOUS
SMALL RHOMBIC CRYSTALS BY SLOW EVAPORATION OF AQ SOLN CONTAINING LARGE EXCESS OF AMMONIA
NEEDLES OR PLATES FROM AMMONIUM HYDROXIDE
Usage:

Biochemical research, cosmetics.

Safety Data
Hazard Symbols Xi:Irritant
 

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