Rifaximin EP Impurity E

SZ CAT No:	SZ-R027006
CAS No	13553-79-2
Mol.F.	C37H45NO12
Mol.Wt.	695.8
Inv. Status	In Stock
Rel. CAS No	133956-65-7 (sodium salt)

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Chemical Name: 5,17,19,21-Tetrahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-2,7-(epoxypentadeca[1,11,13]trienimino)naphtho[2,1-b]furan-1,6,9,11(2H)-tetrone 21-Acetate; 1,4-Dideoxy-1,4-dihydro-1,4-dioxo-rifamycin

Synonym: Rifamycin S

Shipping Temperature: Ambient

HSN Code: 38229010

Country of Origin: India

Smiles: O=C1C2=C(C(C=C3NC(/C(C)=C/C=C/[C@H](C)[C@H](O)[C@@H](C)[C@@H](O)[C@H]4C)=O)=O)C(C3=O)=C(O)C(C)=C2O[C@@]1(O/C=C/[C@@H]([C@H]([C@@]4([H])OC(C)=O)C)OC)C

Structural elucidation of the Rifaximin Ph. Eur. Impurity H
Riccardo Stradi, Donatella Nava, Marino Nebuloni, Barbara Pastura, ElenaPini
Journal of Pharmaceutical and Biomedical Analysis Volume 51, Issue 4, 11 March 2010, Pages 858-865

Structure Elucidation of Two Unknown Oxydic Degradation Impurities of Rifaximin
chao liu, chang-qin hu and shao-hong jin
Asian Journal of Chemistry; Vol. 23, No. 7 (2011), 3252-3256

Development and validation of rp-hplc method for the estimation of rifaximin in bulk and in tablet dosage form
T.sudha, P.V.hemalatha, V.R.ravikumar,r.jothi, M.radhakrishnan
Asian Journal of Pharmaceutical and Clinical Research Vol.2 Issue 4, October-December 2009

Stability Indicating HPTLC Method for Analysis of Rifaximin in Pharmaceutical Formulations and an Application to Acidic Degradation Kinetic Study
Kalpana G. Patel , Nitesh R. Jain, and Purvi A. Shah
Hindawi Publishing Corporation ISRN Analytical Chemistry Volume 2013, Article ID 613218, 9 pages

Rifaximin EP Impurity E is chemically 5,17,19,21-Tetrahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-2,7-(epoxypentadeca[1,11,13]trienimino)naphtho[2,1-b]furan-1,6,9,11(2H)-tetrone 21-Acetate; 1,4-Dideoxy-1,4-dihydro-1,4-dioxo-rifamycin. It is also known as Rifamycin S. Rifaximin EP Impurity E is supplied with detailed characterization data compliant with regulatory guideline. Rifaximin EP Impurity E can be used for the analytical method development, method validation (AMV), Quality Controlled (QC) application for Abbreviated New Drug Application (ANDA) or during commercial production of Rifaximin.

The product can be used as reference standards and further traceability against pharmacopeial standards (USP or EP) can be provided based on feasibility. SynZeal products are for analytical purpose only and not for human use.

SZ CAT No:	: SZ-R027003
CAS No	: 13929-35-6
Mol.F.	: C39H49NO14
Mol.Wt.	: 755.8
Inv. Status	: In Stock
Rel. CAT No	: SZ-R058002 ,

SZ CAT No:	: SZ-R027004
CAS No	: 14897-39-3
Mol.F.	: C37H46NO12 : Na
Mol.Wt.	: 696.8 : 23.0
Inv. Status	: In Stock
Rel. CAS No	: 6998-60-3 (free base)
Rel. CAT No	: SZ-R058001 ,

SZ CAT No:	: SZ-R027007
CAS No	: 14487-05-9
Mol.F.	: C39H47NO14
Mol.Wt.	: 753.8
Inv. Status	: In Stock
Rel. CAT No	: SZ-R058004 ,

Rifaximin EP Impurity E

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SZ CAT No:	: SZ-R027001
CAS No	: 80621-81-4
Mol.F.	: C43H51N3O11
Mol.Wt.	: 785.9
Inv. Status	: In Stock

SZ CAT No:	: SZ-R027002
CAS No	: 695-34-1
Mol.F.	: C6H8N2
Mol.Wt.	: 108.1
Inv. Status	: In Stock

SZ CAT No:	: SZ-R027005
CAS No	: NA
Mol.F.	: C43H49N3O12
Mol.Wt.	: 799.9
Inv. Status	: Custom Synthesis

SZ CAT No:	: SZ-R027006
CAS No	: 13553-79-2
Mol.F.	: C37H45NO12
Mol.Wt.	: 695.8
Inv. Status	: In Stock
Rel. CAS No	: 133956-65-7 (sodium salt)
Rel. CAT No	: SZ-R058003 ,

SZ CAT No:	: SZ-R027008
CAS No	: 80621-76-7
Mol.F.	: C43H49N3O11
Mol.Wt.	: 783.9
Inv. Status	: In Stock

SZ CAT No:	: SZ-R027009
CAS No	: 1210022-90-4
Mol.F.	: C43H51N3O12
Mol.Wt.	: 801.9
Inv. Status	: Custom Synthesis

SZ CAT No:	: SZ-R027010
CAS No	: 1351775-04-6
Mol.F.	: C43H49N3O11
Mol.Wt.	: 783.9
Inv. Status	: In Stock

SZ CAT No:	: SZ-R027011
CAS No	: 1351775-03-5
Mol.F.	: C43H49N3O11
Mol.Wt.	: 783.9
Inv. Status	: In Stock

SZ CAT No:	: SZ-R027012
CAS No	: 16783-99-6
Mol.F.	: C41H56N4O11
Mol.Wt.	: 780.9
Inv. Status	: In Stock

SZ CAT No:	: SZ-R027013
CAS No	: NA
Mol.F.	: C44H60N4O11
Mol.Wt.	: 821.0
Inv. Status	: Custom Synthesis

SZ CAT No:	: SZ-R027014
CAS No	: 80621-88-1
Mol.F.	: C41H49N3O10
Mol.Wt.	: 743.9
Inv. Status	: In Stock

SZ CAT No:	: SZ-R027D01
CAS No	: 1262992-43-7
Mol.F.	: C43H45D6N3O11
Mol.Wt.	: 791.9
Inv. Status	: Custom Synthesis

SZ CAT No:	: SZ-R027015
CAS No	: NA
Mol.F.	: C43H49N3O12 : C43H51N3O12
Mol.Wt.	: 799.9 : 801.9
Inv. Status	: Custom Synthesis