STC Research Chemicals Ltd.

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E001006

Erythromycin Impurity F

CAS No. 105882-69-7

C37H65NO12

M.W. 715.92

E001003

Erythromycin Impurity C

CAS No. 41451-91-6

C37H65NO14

M.W. 747.93

E000275

Esomeprazole Impurity 45

CAS No. N/A

C26H30N4O3S

M.W. 478.61

E000266

Esomeprazole Impurity 36

CAS No. N/A

C26H30N4O4S

M.W. 494.61

E000136

Ezetimibe impurity 6

CAS No. 528565-93-7

C20H20FNO4

M.W. 357.39

D001719

Methyl 1,4-Benzodioxane-2-carboxylate

CAS No. 3663-79-4

C10H10O4

M.W. 194.18

D001706

Doxazosin EP Impurity F

CAS No. 23680-84-4

C10H10ClN3O2

M.W. 239.66

D001704

Doxazosin EP Impurity D

CAS No. 28888-44-0

C10H10N2O4

M.W. 222.20

D001702

Doxazosin EP Impurity B

CAS No. 70918-74-0

C13H17ClN2O3

M.W. 284.74

D001701

Doxazosin EP Impurity A

CAS No. 3663-80-7

C9H8O4

M.W. 180.16

C001426

Cefathiamidine Impurity 3

CAS No. 1417570-09-2

C17H26N4O4S2

M.W. 414.54

C001208

Cefadroxil delta-3 Isomer

CAS No. 147103-94-4

C16H17N3O5S

M.W. 363.39