Tacrolimus Impurity 5(Ascomycin)（Tacrolimus EP Impurity A）（Tacrolimus USP RC A）

Product Name	Ascomycin
Synonyms	AAG FK-520 C058028 FR-900520 Ascomycin IMMUNOMYCIN AscoMycin solution Synonyms AAG FK-520 C058028 FR-900520 Ascomycin IMMUNOMYCIN AscoMycin solution Tacrolimus USP RC A Tacrolimus Imprity 6 ASCOMYCIN, STREPTOMYCES HYGROSCOPICUS ASCOMYCIN, STREPTOMYCES HYGROSCOPICUS VAR ASCOMYCETICUS L 683590, FR 900520, IMMunoMycin, FK 520, WS 7238A, NSC 106410 12,18-tetramethyl-,(3s-(3r(e(1s,3s,4s)),4s,19s,26ar*))--10 8-ethyl-3-(2-(4-hydroxy-3-methoxycyclohexyl)-1-methylethenyl)-14,16-dimethoxy 15,19-Epoxy-3H-pyrido(2,1-C)(1,4)oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone, 8-ethyl-5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26A-hexadecahydro-5,19-dihydroxy-3-(2-(4-hydroxy-3-methoxycyclohexyl)-1-methylethenyl)-14,16-dimethoxy-4,10,12,18-tetram (3S,4R,5S,8R,12S,14R,15R,16S,18R,19R,26aS)-8-ethyl-5,19-dihydroxy-3-{(E)-2-[(1S,3R,4S)-4-hydroxy-3-methoxycyclohexyl]-1-methylethenyl}-14,16-dimethoxy-4,10,12,18-tetramethyl-5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-3H-15,19-epoxypyrido[2,1-c][1,4]oxazacyclotricosine-1,7,20,21(4H,23H)-tetrone (3S,4R,5S,8R,12S,14S,15R,16S,18R,19R,26aS)-8-ethyl-5,19-dihydroxy-3-{(E)-2-[(1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl]-1-methylethenyl}-14,16-dimethoxy-4,10,12,18-tetramethyl-5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-3H-15,19-epoxypyrido[2,1-c][1,4]oxazacyclotricosine-1,7,20,21(4H,23H)-tetrone (3S,4S,5S,8R,12S,14S,15R,16S,18R,19R,26aS)-8-ethyl-5,19-dihydroxy-3-{(E)-2-[(1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl]-1-methylethenyl}-14,16-dimethoxy-4,10,12,18-tetramethyl-5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-3H-15,19-epoxypyrido[2,1-c][1,4]oxazacyclotricosine-1,7,20,21(4H,23H)-tetrone
CAS	104987-12-4;11011-38-4
EINECS	600-627-5
Chemical Formula	C43 H69 N O12
Molecular Weight	792.01
inchi	InChI=1/C43H67NO12/c1-10-30-18-24(2)17-25(3)19-36(53-8)39-37(54-9)21-27(5)43(51,56-39)40(48)41(49)44-16-12-11-13-31(44)42(50)55-38(28(6)33(46)23-34(30)47)26(4)20-29-14-15-32(45)35(22-29)52-7/h18,20,25,27-32,35-39,45,51H,10-17,19,21-23H2,1-9H3/b24-18-,26-20+/t25-,27-,28-,29+,30-,31+,32-,35-,36+,37+,38-,39-,43-/m1/s1
Package	bottle
Price	Call Me
Descriptions	58725T
Supplier Website	https://www.standardpharm.org.cn/
Last Update	2026-02-10 16:18:13