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guanine

May 20, 2024by admin0

guanine structural formula

structural formula

business number 01hf
molecular formula c5h5n5o
molecular weight 151.13
label

2-aminohypoxanthine,

2-amino-6-hydroxypurine,

guanine,

guanotin,

guanoline,

guano ring,

iminopurine dioxide,

2-amino-6-hydroxypurine,

2-amino-1,9-dihydro-6h-purin-6-one,

6-n-hydroxyaminopurine,

2-amino-6-oxypurine,

pigment

numbering system

cas number:73-40-5

mdl number:mfcd00071533

einecs number:200-799-8

rtecs number:mf8260000

brn number:9680

pubchem number:24895274

physical property data

1. appearance: white square crystal or amorphous powder

2. density (g/ml, 25/4℃): uncertain

3. relative vapor density ( g/ml, air=1): uncertain

4. melting point (ºc): >300 (lit.)

5. boiling point (ºc, normal pressure): uncertain

6. boiling point (ºc, 5.2 kpa): uncertain

7. refractive index: uncertain

8. flash point (ºc): uncertain

9. specific rotation (º): uncertain

10. autoignition point or ignition temperature (ºc): uncertain

11. vapor pressure (kpa, 25 ºc): uncertain

12. saturated vapor pressure (kpa, 60 ºc): uncertain

13. heat of combustion (kj/mol): uncertain

14. critical temperature (ºc): uncertain

15. critical pressure (kpa): uncertain

16. oil-water (octanol/water) distribution log value of coefficient: uncertain

17. explosion upper limit (%, v/v): uncertain

18. explosion lower limit (%, v/v): uncertain

19. solubility: soluble in ammonia, potassium hydroxide aqueous solution, dilute acids, slightly soluble in alcohol and ether, almost insoluble in water.

toxicological data

acute toxicity: mouse oral lc: >3333 mg/kg; mouse intraperitoneal lc: >1 mg/kg; tumorigenicity: rat subcutaneous injection of tdlo: 1300 mg/kg/26w-i;

mutagenicity: human lymphocyte sex chromosome non-disjunction loss and testing system: 10 mg/l; mouse peritoneal cytogenetic analysis: 15 mg/kg;

ecological data

none

molecular structure data

1. molar refractive index: 35.46

2. molar volume (cm3/mol): 68.8

3. isotonic specific volume (90.2k ): 229.6

4. surface tension (dyne/cm): 124.0

5. polarizability (10-24cm3): 14.06

compute chemical data

1. reference value for hydrophobic parameter calculation (xlogp): none

2. number of hydrogen bond donors: 3

3. number of hydrogen bond acceptors: 2

4. number of rotatable chemical bonds: 0

5. number of tautomers: 26

6. topological molecule polar surface area 96.2

7. number of heavy atoms: 11

8. surface charge: 0

9. complexity: 225

10. number of isotope atoms: 0

11. determine the number of atomic stereocenters: 0

12. uncertain number of atomic stereocenters: 0

13. determine the number of chemical bond stereocenters: 0

14. number of uncertain chemical bond stereocenters: 0

15. number of covalent bond units: 1

properties and stability

none

storage method

synthesis method

none

purpose

1. it is a natural white pigment and is non-toxic. it can be used in general cosmetics, mainly used as pearlescent agent in lipstick, nail polish and eye cosmetics.

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