Impurities 
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Toronto Research Chemicals

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Dear Researcher,

Impurities in pharmaceuticals are unwanted chemicals that remain with the active pharmaceutical ingredients (APIs) or develop during formulation or upon aging of both API and formulation. The different pharmacopeias, such as the British Pharmacopoeia (BP) and the United States Pharmacopoeia (USP) has incorporated limits to allowable levels of impurities present in the APIs or formulations. If you can't find what you are looking for, we request you to contact us for new product suggestions. 

TRC offers a large selection of these reference impurities to aid your qualitative and quantitative research 

USP RELATED COMPOUNDS
Azacitidine USP Related Compound A 
Cat. No: A796375
Potential antitumor and antiproliferative agent against human leukemia cells

Pravastatin USP Related Compound A

Cat. No: H952310
A competitive inhibitor of HMG-CoA reductase; a bioactive metabolite of mevastatin
 
EP IMPURITIES

Lovastatin EP Impurity B

Cat. No: L472250
A metabolite of Lovastatin; a HMG-CoA reductase inhibitor isolated from cultures of Aspergillus terreus                                                             

Itraconazole EP Impurity A

Cat. No: B693320
An intermediate of Itraconazole; orally active antimycotic structurally related to Ketoconazole​

                                                                            
BP IMPURITIES

Terbinafine BP Impurity

Cat. No: M323140


                                                                            

Timolol BP Impurity F

Cat. No: C379960
An intermediate for the synthesis of Timolol
                                                                            
LABELED IMPURITIES

Bosentan Impurity-D4

Cat. No: C428997
Bosentan is a mixed endothelin receptor antagonist used as a vasodilator and an antihypertensive.
                                                                            

Ethacrynic Acid Impurity-D3

Cat. No: P835209
An impurity of Ethacrynic Acid; that is a diuretic used to treat high blood pressure 
                                                                            
ELISA KITS

Human IFN-a (Interferon Alpha) ELISA Kit

Cat. No: LZ02740
Assay Type: Sandwich ELISA, Double Antibody
Detection Range: 15.625-1000pg/ml
Sensitivity: 9.375pg/ml
                                                      View related ELISA Kits

Mouse IL-15RA (Interleukin 15RA) ELISA Kit

Cat. No: LZ03326
Assay Type: Sandwich ELISA, Double Antibody
Detection Range: 78-5000pg/ml
Sensitivity: 46.9pg/ml
                                                      View related ELISA Kits
CURRENT OFFERS & NEW SERVICES

  Best regards
  Your TRC Marketing Team 
 
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