Sunday, June 30, 2013

About 2,3-Difluoroanisole




Chinese name: 2,3 - difluoroanisole
English name: 2,3-Difluoroanisole
English Synonyms: Difluoroanisole1; 1,1,1-trifluoro-2-phenylbut-3-en-2-ol; 1,2-difluoro-3-methoxybenzene
Chemical name: 2,3-Difluoroanisole
Appearance: Colorless transparent liquid
Content: 99%
CAS Number: 134364-69-5
Formula: C7H6F2O
Molecular Weight: 144.1187
InChI: InChI = 1/C7H6F2O/c1-10-6-4-2-3-5 (8) 7 (6) 9/h2-4H, 1H3
Molecular structure:
Density: 1.182g/cm3
Boiling Point: 144.5 ° C at 760 mmHg
Flash Point: 47.1 ° C
Vapor Pressure: 6.4mmHg at 25 ° C
Properties:
Boiling point: 70 - 72 (p = 38 tor

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Friday, June 28, 2013

About 5-Fluorocytidine




Chinese Name: 5 - fluoro cytidine
Chinese Synonyms: 4 - fluorocytidine; 5 - fluorocytosine nucleosides; 5 - fluorocytosine nucleosides, aka: 4 - fluorocytidine; 5 - fluorocytosine nucleosides / 5 - fluorocytidine
Product Name: 5-Fluorocytidine
English Synonyms: 5-fluoro-cytidin; 5-FLUOROCYTIDINE; 5-Fluoro-D-cytidine; 5-Fluorocytidine98%; (2'R, 3'R, 4'S, 5'R)-4-Amino-1-(3 ,4-dihydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-5-fluoro-1H-pyrimidin-2-one
CAS No.: 2341-22-2
Formula: C9H12FN3O5
Molecular Weight: 261.21
EINECS Number: 234-122-2
Related Categories: Heterocyclic; pyrimidine; Miscellaneous Biochemicals; Heterocycles series; Pyrimidine; API intermediates; Nucleotides and Nucleosides; Biochemistry; Nucleosides and their analogs; Nucleosides, Nucleotides & Related Reagents; Bases & Related Reagents; Nucleotides; Oligonucleotide Synthesis; Nucleosides; Specialty Synthesis; Heterocycles
Mol File: 2341-22-2.mol

5 - fluorocytosine nucleosides nature
Mp 196-200 ° C (lit.)
Specific rotation 55 º (c = 1, MeOH)
Refractive index 55 ° (C = 1, MeOH)
Storage conditions -20? C Freezer
CAS DataBase 2341-22-2 (CAS DataBase Reference)

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From:Chemistry Chemicals

Wednesday, June 26, 2013

What is 2-Fluoro-4-hydroxyaniline, HCl?




Chinese name: 4 - hydroxy-2 - fluoro aniline hydrochloride
Chinese Synonyms: 2 - fluoro-4 - hydroxy-aniline hydrochloride
Product Name: 4-Hydroxy-2-fluoroaniline hydrochloride
English Synonyms: 4-amino-3-fluorophenol, HCL; 2-FLUORO-4-HYDROXYANILINE, HCL
Formula: C6H10Cl2N2O
Molecular Weight: 197.06
Melting point: 222 ℃ (decomposition)
Ash: ≤ 0.5%
Iron: ≤ 40ppm
Content: ≥ 98%
Density: 1.347g/cm3
Boiling Point: 270.4 ° C at 760 mmHg
Flash Point: 117.3 ° C
Vapor Pressure: 0.00414mmHg at 25 ° C
Standard: Enterprise standard
Appearance: white or gray powder
Uses: It can be used as a photographic developer. With the alkali aqueous solution can also be developed. For high temperature developer, but not long-term storage. Also used for fur and hair coloring, formaldehyde and ammonia test


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From:Chemistry Chemicals

Tuesday, June 25, 2013

What is Potassium (4-methoxy-2-methylphenyl)trifluoroborate?




Name:What is Potassium (4-methoxy-2-methylphenyl)trifluoroborate
Physical properties
Appearance: white powder

Melting point (oC): >300
Function and use

Avoid oxide
Storage method

Storage: sealed, cool and ventilated dry place
Ecological data

1, other harmful effects: usually on the water is a little more risk, without the permission of the Government, do not put material into the surrounding environment.
Security information
Dangerous mark: stimulus
Security ID: S26 S36

Risk ID: R36/37/38
Properties and stability In medicine, pesticides and other organic synthesis.


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