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Impurity

 97164-56-2
97164-56-2
2386539
(E)-Cefixime (Cefixime EP Impurity D)
 1021456-82-5
1021456-82-5
2392779
Palonosetron Impurity 2
 120013-45-8
120013-45-8
315150
Dehydrodeoxy Donepezil (Donepezil Impurity)
 1337482-15-1
1337482-15-1
2458352
Sofosbuvir Impurity 20
 42453-19-0
42453-19-0
2467237
Ifosfamide Impurity E
 178949-04-7
178949-04-7
221290
Cefdinir IMpurity 3 (Cefdinir Decarboxy Open Ring Lactone (Mixture of A and B))
 844694-85-5
844694-85-5
242142
Donepezil Benzyl Bromide (Donepezil Impurity)
 766480-48-2
766480-48-2
244734
LCZ 696 Impurity B
 190595-66-5
190595-66-5
250019
EzetiMibe IMpurity 1
 168329-48-4
168329-48-4
2275047
Brimonidine Impurity E
  1. 2025-06-05 Chemsigma served for global customers.Supply advanced organic chemicals such as cefdinir,decarboxy,open,ring,lactone,mixture
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