• 2305824-51-3
  Clomipramine EP Impurity A DiHCl
  
• 3589-22-8
  Dichlorimipramine
  
• 57101-48-1
  4-Hydroxy Clonidine
  
• 21709-18-2
  Clonidine Impurity 1
  
• 132301-89-4
  =-Cloperastine
  
• 220309-19-1
  -Cloperastine Fendizoate
  
• 791-35-5
  Clophedianol
  
• 66171-85-5
  Clophedianol-D-glucuronide
  
• 1015247-88-7
  Clopidogrel Carboxylic Acid HCl
  
• 109904-27-0
  2-Oxo Clopidogrel
  
• 1346605-15-9 (free base)
  Clopidogrel N-Methyl Impurity I HCl
  
• 1332612-57-3
  Clopidogrel Ethyl Ester Sulfate
  
• 1287430-40-3
  Clopidogrel Metabolite II
  
• 53885-64-6
  Ticlopidine EP Impurity E Chloride
  
• 2418591-13-4
  Clopidogrel Impurity 4
  
• 1421283-60-4 (free base)
  Clopidogrel Impurity D Sulfate
  
• 444728-13-6
  Clopidogrel Impurity 7
  
• 54276-21-0
  =-Cloprostenol
  
• 50274-07-2
  Closantel Impurity F
  
• 57808-65-8 (non-13C)
  Closantel-(Benzoyl ring-13C6)
  
• 883225-99-8
  Dicloxacillin Degradation Impurity (DCMICAA)
  
• 75524-31-1
  5-Hydroxymethyl Flucloxacillin
  
• 18704-55-7
  Cloxacillin Sodium EP Impurity E
  
• 5053-35-0
  Oxacillin Impurity F
  
• 38977-93-4(free-base)
  Oxacillin Impurity B HCl （Mixture of Diastereomers）
  
• 263366-81-0
  Clozapine EP Impurity B
  
• 1051463-24-1 (free base)
  Cobicistat Impurity HCl (2-[4-(Methylamino)methyl-1,3-Thiazole-2-yl] Propane-2-ol HCl)
  
• 1051463-40-1
  Hydroxy Cobicistat
  
• 477-27-2
  3-Demethyl Colchicine Glucuronide
  
• 2170771-70-5
  Colesevelam Amino Dihexylquat Impurity HBr
  
• 676578-21-5
  Colesevelam Hydroxyquat Impurity
  
• 863031-14-5
  Colesevelam Methoxyquat Impurity
  
• 77378-05-3
  N6-Octanoyl Cordycepin
  
• 308123-60-6
  18-Methoxycoronaridine
  
• 116-58-5
  20-beta-Dihydrocortisol
  
• 154032-37-8
  Hydrocortisone EP Impurity O
  
• 103795-84-2
  Hydrocortisone Impurity I
  
• 53587-06-7
  6-beta-Hydroxycortisol Sulfate
  
• 21940-45-4
  6-Dehydrocortisol Acetate
  
• 75868-48-3
  21-Chloro Hydrocortisone
  
• 34184-82-2
  21-Deoxy Hydrocortisone
  
• 14760-49-7
  Hydrocortisone EP Impurity G
  
• 81968-66-3
  Hydrocortisone Acetate EP impurity G
  
• 67010-76-8
  6-alpha-Hydroxy Cortisone
  
• 34834-67-8
  =-trans-3-Hydroxy Cotinine
  
• 66695-14-5
  7-Hydroxycoumarin glucuronide
  
• 69526-88-1
  7-Hydroxycoumarin sulfate
  
• 185056-83-1(non-d)
  7-Hydroxy Coumarin Glucuronide Sodium
  
• 1786-05-6
  4-Hydroxy-3-Phenylcoumarin
  
• 6093-67-0
  5-Hydroxy Coumarin
  
• 19604-05-8
  creatinine phosphate sodium
  
• 1415558-82-5
  2-Keto Crizotinib
  
• 227466-72-0
  Curcumin Glucuronide
  
• 339286-19-0
  Curcumin Sulfate Sodium Salt
  
• 13384-45-7
  Cyamemazine sulfoxide
  
• 26264-28-8
  Cyanocobalamin EP Impurity B
  
• 303-53-7(non-d)
  Cyclobenzaprine N-Glucuronide (mixture of isomers)
  
• 30235-48-4
  3-Hydroxy Cyclobenzaprine
  
• 516-21-2
  Cycloguanil
  
• 23185-94-6
  Cycloposine
  
• 52336-54-6
  Cyclophosphamide Impurity
  
• 27046-19-1 (non-labelled)
  Cyclophosphamide Impurity 1
  
• 2387-78-2
  Cyperene
  
• 54191-04-7
  Cyproheptadine Impurity 1
  
• 17184-05-3
  Cyproterone Impurity E
  
• 427-51-0 (non-d)
  15-Hydroxy cyproterone
  
• 65423-26-9
  15-beta-Hydroxy Cyproterone
  
• 15423-97-9
  Cyproterone Impurity J
  
• 13419-46-0
  S--Cysteine-13C3-15N
  
• 907565-13-3-(free-base)
  N,S-Carboxymethyl Cysteine HCl
  
• 84184-18-9
  1-Methyl-2-Thiozoline-4-Carboxylic Acid
  
• 51744-82-2
  D-Homocysteine Lactone
  
• 10593-85-8
  DL-Homocysteine Thiolactone
  
• 130548-06-0
  D-Homocysteine Thiolactone
  
• 147-94-4 (non-labelled)
  Cytarabine-13C3
  
• 181517-10-2
  Cytosine-13C-15N2
  
• 1381757-44-3
  Dabigatran Etexilate N-Oxide
  
• 1643377-49-4
  Dabigatran Etexilate Impurity 27
  
• 1408238-41-4 (free base)
  Dabigatran Impurity 9 HCl
  
• 1427571-33-2
  Dabigatran Impurity 10 HCl
  
• 1422495-93-9
  Dabigatran Impurity 11
  
• 1422435-35-5
  Dabigatran Impurity 12
  
• 1637238-96-0
  Dabigatran Impurity 23
  
• 1423119-98-5
  Dabrafenib-D9
  
• 1314929-56-0
  Dacarbazine Impurity C
  
• 1009107-27-0
  Daclatasvir Impurity 4
  
• 1009119-64-5 (non-labelled)
  DAIDZEIN
  
• 109872-41-5
  Dalotutumab
  
• 55227-60-6
  Dantrolene Impurity 3
  
• 1632287-34-3
  Dapagliflozin Impurity 2
  
• 1807632-95-6
  Dapagliflozin Impurity 3
  
• 1938090-31-3
  Dapagliflozin impurity 5
  
• 2040305-05-1
  Dapagliflozin Impurity 8
  
• 1469910-70-0
  Dapagliflozin Impurity 9
  
• 157166-71-7
  N-Desmethyl Dapoxetine HCl
  
• 2242008-38-2
  Dapoxetine Impurity 2 HCl
  
• 24301-87-9
  Dapoxetine Impurity 12 HCl
  
• 119357-39-0
  Dapoxetine Impurity 4 HCl
  
• 119357-36-7
  R- Dapoxetine
  
• 27147-69-9
  Dapsone Impurity 5