ketotifen fumarate CAS No. 34580-14-8 CAS NO.34580-14-8

Product Details

1. best prices with satisfied quality;

2. clients can choose the package's courier (ems, dhl, fedex, ups,tnt);

3.clients can choose the packing way for his produccts from many recent effective packing ways;

4.specials are possible when client's order is big enough, including the discount policy;

5.our company promises to deliver clients' product to his hands safely, or we'll bear the total loss and resend in time;

6. we accept t/t, west union. you can choose any term you like

7. welcome all the customers to visit!

8. high quality, best service,competitive price are our principle

product number	lusapi2279
product name:	ketotifen fumarate
cas no.	34580-14-8
english alias:	10h-benzo(4,5)cyclohepta(1,2-b)thiophen-10-one,4,9-dihydro-4-(1-methyl-4-pipe ;hc20-511fumarate
specifications:	99%min
formula:	c19h19nos.c4h4o4
molecular weight:	425.5
package:	as required
appearance:	white crystalline powder

appearance	white or brownish-yellow, fine, crystalline powder	brownish-yellow crystalline powder
solubility	sparingly solube in water ,slight solube in methanol , very slightly solube in acetonitrile	conforms
identification	a.the ir spectrum is concordant with the ph.eur.reference spectrum of ketotifen fumarate .	conforms
identification	b.the spot due to fuaric acid in the chromatogram obtained with the test solution is similar in position ,color and intensity to the principal spot in the chromatogram obtained with the reference solution	conforms
appearance of solution	the solution is clear and not more intensely coloured than reference solution y4,by4,or b4	conforms
related substances (hplc)	impurity g:nmt 0.2%	0.11%
	unspecified impurity :nmt 0.10%	＜disregard limit 0.05%
	total impurities: nmt 0.5%	0.30%
loss on drying	nmt 0.5%	0.3%
sulphated ash	nmt 0.1%	0.04
residual solvens(gc)	methanol: nmt 3000 ppm	none detected
	ethanol: nmt 5000 ppm	none detected
	acetone: nmt 5000 ppm	2741 ppm
	tetrahydrofuran: nmt 720 ppm	none detected
assay	nlt 98.5%& nmt101.0%(dried substance)	99.4%