13710-19-5 CLOTAM 1,2-Distearoyl-sn-glycero-3-phosphocholine
name | tolfenamic acid | |
molecular formula | C14H12ClNO2 | |
molecular weight | 261.7036 | |
InChI | InChI=1/C14H12ClNO2/c1-9-11(15)6-4-8-12(9)16-13-7-3-2-5-10(13)14(17)18/h2-8,16H,1H3,(H,17,18) | |
density | 1.333g/cm3 | |
melting point | 210-214C | |
boiling point | 405.4C at 760 mmHg | |
flash point | 199C | |
steam vapour |
2.66E-07mmHg at 25C |
Specification of Tolfenamic acid /13710-19-5
Inspect Item |
Specification |
Results |
Appearance |
White or slightly yellow, crystalline powder |
Conforms |
Solubility |
Practically insoluble in water, soluble in dimethylformamide, sparingly soluble in ethanol and in methylene chloride |
Conforms |
Identification |
A. Light absorption: the ratio of the absorbance measured at the maximum at 286nm to that maximum at 345nm should be 1.2 to 1.4 |
Conforms |
B. IR absorption spectrophotometry should be conformed |
1.2 |
|
C. TLC chromatography (245nm) should be conformed |
Conforms |
|
Melting point |
210~214℃ |
212.1~212.6℃ |
Related substances |
Impurity A<0.1%;Impurity B<0.05% |
Conforms |
Any other impurity<0.1% |
Conforms |
|
Total impurity<0.5% |
Conforms |
|
Copper |
Not more than 10ppm |
Conforms |
Loss on drying |
Not more than 0.5% |
0.20% |
Sulphated ash |
Not more than 0.1% |
<0.1% |
Assay (basis on dry) |
99.0~101.0% |
99.70% |
Conclusion |
The results conforms with EP6.0 standards |
CAS NO:4337-33-1
CAS NO:55203-24-2
CAS NO:55203-24-2
CAS NO:55203-24-2
CAS NO:50-02-2
CAS NO:50-02-2
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View