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USA Office
SINCO PHARMACHEM INC.
364 E Main Street Suite 1004 Middletown, DE 19709
Tel：+01 (302) 314 9524
sales@sincopharmachem.com

Strategical Partner:
SHENZHEN PHYSTANDARD BIO-TECH CO., LTD.
3rd Floor D Block QingChuang City Pink Town MinKang Road 292, MinZhi Street, LongHua, ShenZhen, GuangDong, China 518131
Tel: +86 755 8178 9528 Email: info@phystandard.com
www.phystandard.com.cn

Rifaximin

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Rifaximin

Rifaximin
CAT #: R31045
CAS #: 80621-81-4
M.F .: C43H51N3O11
M.W .: 785.90

Rifaximin EP Impurity D
CAT #: R31046
CAS #: N/A
M.F .: C43H49N3O12
M.W .: 799.88

Rifaximin EP Impurity H
CAT #: R31047
CAS #: 1210022-90-4
M.F .: C43H51N3O12
M.W .: 801.90

25-Desacetyl Rifaximin
CAT #: R31048
CAS #: N/A
M.F .: C42H51N3O9
M.W .: 741.89

Rifaximin Impurity 1
CAT #: R31049
CAS #: 1351775-04-6
M.F .: C43H49N3O11
M.W .: 783.88

Rifaximin Impurity 2
CAT #: R31050
CAS #: 1351775-03-5
M.F .: C43H49N3O11
M.W .: 783.88

Rifaximin EP Impurity B
CAT #: R19941
CAS #: 13929-35-6
M.F : C39H49NO14
M.W : 755.81

Rifaximin EP Impurity E
CAT #: R19942
CAS #: 13553-79-2
M.F : C37H45NO12
M.W : 695.76

Rifaximin EP Impurity G
CAT #: R19943
CAS #: 80621-76-7
M.F : C43H49N3O11
M.W : 783.88