Leflunomide CAS NO.75706-12-6

product information

leflunomide basic information

product name:	leflunomide
synonyms:	leflunomide;hwa 486;alpha,alpha,alpha-trifluoro-5-methyl-4-isoxazolecarboxy-p-toluidide;5-methylisoxazole-4-(4-trifluoromethylcarboxanilide);5-methyl-n-[4-(trifluoromethyl)phenyl]-4-isoxazolecarboxamide;n-(4-trifluoromethylphenyl)-5-methylisoxazol-4-carboxamide;5-methylisoxazole-4-carboxylicacid(4-trifluoromethyl)anilide;5-methyl-n-(4-(trifluoromethyl)phenyl)-4-isoxazolecarboxamid
cas:	75706-12-6
mf:	c12h9f3n2o2
mw:	270.21
einecs:
product categories:	active pharmaceutical ingredients;api;osteoarthritis and rheumatoid arthritis;inhibitors;intermediates & fine chemicals;pharmaceuticals;cytokine signaling;aromatics;heterocycles;an immunosuppressive agent;cardene;other apis
mol file:	75706-12-6.mol

leflunomide chemical properties

mp	163-168°c
storage temp.	2-8°c
cas database reference	75706-12-6(cas database reference)

safety information

hazard codes	xn,xi
risk statements	22-36/37/38
safety statements	26-36
ridadr	un 2811 6.1/pg 3
wgk germany	3
rtecs	ny2354200
hazardous substances data	75706-12-6(hazardous substances data)

msds information

provider	language
leflunomide	english
sigmaaldrich	english

leflunomide usage and synthesis

chemical properties	off white crystalline solid
usage	an immunosuppressive. inhibits t and b cell proliferation. activity is attributed mainly to its metabolite, a malononitrile derivative, which is beleived to inhibit dihydroorotate dehydrogenase as well as several protein tyrosine kinases. therapeutical
usage	vasodilator
usage	anti-altzheimer therapeutic
biological activity	immunosuppressant agent. in vitro the active metabolite a77 1726 (rs-61980) inhibits dihydroorotate dehydrogenase (k i = 2.7 μ m) and de novo pyrimidine synthesis in t-cells; blocks lymphocyte cell cycle progression and proliferation. a77 1726 also inhibits anti-cd3/cd28-induced cytokine production in pbmc cells (ic 50 = 21-27 μ g/ml). in vivo reduces inflammation in several animal models of autoimmune disease, arthritis, asthma and graft rejection.

henan sunlake enterprise corporation is located in henan province , the central plain of china , which enjoys favorable geogeaphical position and convenient transportion, the com[any was established in june. 1998 , until now having more than 18 years experience in manufacturing & exporting chemical raw material .

sunlake is a professional manufacturer engaged in producing and selling chemicals,including organic & inorganic chemicals , pigments & dyestuffs , water treatment chemicals , food & feed additives and others . these products have been being well exported to europe , southeast asia , the middle east , africa , south america and some other countries and areas.

we sincerely welcome foreign friends to visit our plant for cooperation. with the idea of "quality first,credit priority, excellent service", we are highly acknowledged by customers for good quality and competitive price. more importantly , the company has a strong r & d team, who are professional engineers and scholars with ph. d. .so we are confident to serve you better with our high - quality products and professional team.

we are taking great efforts to provide our customers with demanded goods and professional services, and continuously improve our core ability of competition and get the momentum for sustainable development, and finally make us being a reliable and professional wupplier in international market.

we welcome any serious inquiries from all customers of the world, and sincerely hope to cooperate.