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Rifaximin impurity B

CAS No.: 1351775-04-6

Chemical Name:: Rifaximin impurity B

Synonyms: Rifaximin Impurity 1;Rifaximin impurity B;Rifaximin Impurity 12;RIFAXIMIN EP IMPURITY 1;Rifaximin Impurity 1(Rifaximin Impurity B);(2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-25-(Acetyloxy)-6,21,23-trihydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-11-methylene-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[;(2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-25-(Acetyloxy)-6,21,23-trihydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-11-methylene-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,5,15(2H,11H)-trione;(2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-25-(Acetyloxy)-6,21,23-trihydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-11-methylene-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-α]benzimidazole-1,5,15(2H,11H)-trione;2,7-(Epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,5,15(2H,11H)-trione, 25-(acetyloxy)-6,21,23-trihydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-11-methylene-, (2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-;Rifaximin Impurit A: (2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-25-(Acetyloxy)-6,21,23-trihydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-11-methylene-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,5,15(2H,11H)

CBNumber:: CB93054708

Molecular Formula:: C43H49N3O11

Molecular Weight:: 783.88

MOL File:: 1351775-04-6.mol

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Rifaximin impurity B Properties

Boiling point	792.2±60.0 °C(Predicted)
Density	1.36±0.1 g/cm3(Predicted)
pka	4.50±1.00(Predicted)

Rifaximin impurity B Preparation Products And Raw materials

Raw materials

Preparation Products

Rifaximin impurity B Suppliers

Global( 28)Suppliers

Supplier	Tel	Country	ProdList	Advantage	Inquiry
Allmpus Laboratories Pvt Ltd	+91-9518738415 +91-9167862134	Maharashtra, India	657	58	Inquiry
CLEARSYNTH LABS LTD.	+91-22-45045900	Hyderabad, India	6351	58	Inquiry
SynZeal Research Pvt Ltd	+1 226-802-2078	Gujarat, India	6522	58	Inquiry
Pharmaffiliates Analytics and Synthetics P. Ltd	+91-172-5066494	Haryana, India	6773	58	Inquiry
Shenzhen SUNGENING Bio-Medical Co., Ltd.	0755-28967200 13631290199	China	9592	60	Inquiry
Shanghai Xiyuan Biotechnology Co., Ltd	021-58116080	CHINA	6936	58	Inquiry
HX Pharmaceutical technology co., LTD	15671363360	China	2856	58	Inquiry
Shanghai Zerui Biotechnology Co., Ltd.	021-54580889 18321124657	China	10614	58	Inquiry
QUALITY CONTROL SOLUTIONS LTD.	13670046396	China	18899	58	Inquiry
Henan Vcommend Consultrading Co., Ltd.	13393721940	China	9911	58	Inquiry

Supplier	Advantage
Allmpus Laboratories Pvt Ltd	58
CLEARSYNTH LABS LTD.	58
SynZeal Research Pvt Ltd	58
Pharmaffiliates Analytics and Synthetics P. Ltd	58
Shenzhen SUNGENING Bio-Medical Co., Ltd.	60
Shanghai Xiyuan Biotechnology Co., Ltd	58
HX Pharmaceutical technology co., LTD	58
Shanghai Zerui Biotechnology Co., Ltd.	58
QUALITY CONTROL SOLUTIONS LTD.	58
Henan Vcommend Consultrading Co., Ltd.	58

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Rifaximin impurity B (2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-25-(Acetyloxy)-6,21,23-trihydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-11-methylene-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,5,15(2H,11H)-trione Rifaximin Impurit A: (2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-25-(Acetyloxy)-6,21,23-trihydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-11-methylene-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,5,15(2H,11H) Rifaximin Impurity 1 Rifaximin Impurity 1(Rifaximin Impurity B) 2,7-(Epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,5,15(2H,11H)-trione, 25-(acetyloxy)-6,21,23-trihydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-11-methylene-, (2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)- (2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-25-(Acetyloxy)-6,21,23-trihydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-11-methylene-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[ (2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-25-(Acetyloxy)-6,21,23-trihydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-11-methylene-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-α]benzimidazole-1,5,15(2H,11H)-trione Rifaximin Impurity 12 RIFAXIMIN EP IMPURITY 1 1351775-04-6