PRODUCT NAME: Rifaximin EP Impurity H
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	RFX-001
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	1210022-90-4
Mol. Formula	C43H51N3O12
Molecular Wt	801.90
IUPAC	[(7S,9E,11S,12R,13S,14R,15R,16R,17S,18S,19E,21Z)-2,15,17,36-tetrahydroxy-22-(hydroxymethyl)-11-methoxy-3,7,12,14,16,18,30-heptamethyl-6,23-dioxo-8,37-
Synonyms	Synonyms: (2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)- 5,6,21,23-tetrahydroxy-16-(hydroxymethyl)-27-methoxy- 2,4,11,20,22,24,26-heptamethyl-1,15-dioxo-1,2-dihydro- 2,7-(epoxypentadeca[1,11,13]trienoimino)[1]benzofuro- [4,5-e]pyrido[1,2-a]benzimidazol-25-yl acetate
Long Term Storage Condition	2-8°C Refrigerator
Handling instruction	Sample COA

Test	Results
Appearance	Red powder
Water content by KF/TGA	Sample COA
% Potency = [100 - (Water content by KF)] X HPLC Purity)] / 100	Sample COA
Identification by HNMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Solubility	Acetonitrile
Purity	NLT 95 % by HPLC
Analysis Date (Release Date)	Sample COA
Attachments	Sample COA
Other Information	Sample COA
Note: This material can be used as a referance standard and is for research purpose ONLY and not for human consumption