cas number:151767-02-1
name:montelukast sodium
formula:c35h35clnnao3s
molecular weight:608.17
synonyms:cyclopropaneacetic acid,1-[[[(1r)-1-[3-[(1e)-2-(7-chloro-2- quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy- 1-methylethyl)phenyl]propyl]thio]methyl]-,monosodium salt;singulair (tn);singulair;sodium 2-[1-[[(1r)-1-[3-[2-(7-chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(2-hydroxypropan-2-yl)phenyl]propyl]sulfanylmethyl]cyclopropyl]acetate;mk 476;
boiling point:750.5 °c at 760 mmhg
flash point:407.7 °c
item |
specification |
description |
white or off-white powder |
assay |
≥99.0% |
identification |
|
chemistry |
must conforms to standard |
identification (hplc) |
the retention time of test sample major peak complies to reference standard |
infrared absorption |
must complies to reference standard |
sodium identification |
the solution so obtained responds to the tests for sodium |
ph |
9.0~10.5 |
impurity |
not more than 0.5% of any individual impurity is found, the sum of all impurities found is not more than 1.0% |
s-isomer |
nmt 1.0% |
ovi |
must conforms to standard |
heavy metals |
nmt 20ppm |
loss on drying |
nmt 1.0% |
microbe |
|
bacterium |
nmt 1000 cfu/g |
mildew |
nmt 100 cfu/g |
coliform |
nmt 0 cfu/g |