Impurities

Dextro Pharmachem offers reference standards and impurities for a number of APIs under EP, IP, JP and USP and others. 

Our impurity portfolio is stocked with a wide range of standards for quick and reliable supply. 

Dextro Pharmachem understands the industry’s need for quality and reliability and thus all the impurities we produce are as per current regulatory norms. All impurities are shipped with full documentation including; a Certificate of Analysis along with  HPLC, NMR, MS, IR, EA, water content, residual solvents Assay  and MSDS to ensure smooth custom clearance.

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ProductPharmacopiaCAS No.
Aceclofenacimpurity-A15307-79-6)
Aceclofenacimpurity-B15307-78-5
Aceclofenacimpurity-C15307-77-4
Aceclofenacimpurity-D139272-66-5
Aceclofenacimpurity-E139272-67-6
Aceclofenacimpurity-F100499-89-6
Aceclofenacimpurity-G1215709-75-3
Allopurinolimpurity-A27511-79-1
Allopurinolimpurity-B22407-20-1
Allopurinolimpurity-C1346604-13-4
Allopurinolimpurity-D 6994-25-8
Allopurinolimpurity-E31055-19-3
AllopurinolUSP RC -F321571-07-7
AmoxicillinEP Impurity C2088961-37-7
AmoxicillinEP Impurity D 68728-47-2
AmpicillinL-Ampicillin(Imp-B)19379-33-0
AripiprazoleImpurity-A22246-18-0
AripiprazoleImpurity-B41202-77-1 
AripiprazoleImpurity-C203395-81-7
AripiprazoleImpurity-D203395-82-8
AripiprazoleImpurity-E129722-25-4
AripiprazoleImpurity-F573691-09-5
AripiprazoleImpurity-G1797986-18-5
ArtemisininImpurity-A101020-89-7
ArtemisininImpurity-B113472-97-2
ArtemisininImpurity-C
ArtemisininImpurity-D
ArtemisininImpurity-E
ArtemisininImpurity-F
ArtemisininImpurity-G
ArtesunateAnhydro Dihydro Artemisinin82596-30-3
ArtesunateDihydro Artemisinin71939-50-9
Ascorbic AcidImpurity-A98-01-1
Ascorbic AcidImpurity-C21675-47-8
Ascorbic AcidImpurity-D67776-07-2
Ascorbic AcidImpurity-E144-62-7
Ascorbic AcidImpurity-F89-65-6
Ascorbic AcidImpurity-G66757-69-5
Ascorbic AcidImpurity-H122046-79-1
BilastineBilastine Impurity 1 953071-73-3
BilastineBilastine N-Oxide 2069238-47-5
Bilastine1’-Hydroxy Bilastine1638785-23-5
BilastineBilastine keto Acid ImpurityNA
BilastineBilastine keto Ester ImpurityNA
Cefalotin EP Impurity D10590-10-0
Cefepime EP Impurity A97164-57-3
Cefepime EP Impurity C104301-63-5
Cefepime EP Impurity E103296-32-8
Cefepime EP Impurity D65872-41-5
Cefixime Cefixime methyl Ester88621-01-6
CefotaximeEP Impurity A65052-63-3
CefotaximeEP Impurity B66340-28-1
CefotaximeEP Impurity C66403-32-5
CefotaximeEP Impurity D65715-12-0
CefotaximeEP Impurity E66340-33-8
Cefpodoxime Proxetil EP Impurity A80210-62-4
Cefpodoxime Proxetil EP Impurity B 947692-14-0
Cefpodoxime Proxetil EP Impurity D(E-Isomer)112345-70-7
Cefpodoxime Proxetil EP Impurity E217803-89-9
Cefpodoxime Proxetil EP Impurity F96680-30-7
Cefpodoxime Proxetil EP Impurity G947692-15-1
Cefpodoxime Proxetil EP Impurity J(Methoxy Carbamate)NA
Cefpodoxime Proxetil EP Impurity K1192365-87-9
Cefpodoxime Proxetil EP Impurity L82619-01-0
Cefprozil EP Impurity D106447-44-3
CeftazidimeEP Impurity-C41360-25-2
Ceftriaxone EP Impurity A92143-31-2
Ceftriaxone EP Impurity B66340-33-8
Ceftriaxone EP Impurity C58909-39-0
Ceftriaxone EP Impurity D80756-85-0
Ceftriaxone EP Impurity E 58909-56-1
Cefuroxime AxetilEP Impurity-A 123458-61-7
Cefuroxime AxetilEP Impurity-B97232-96-7
Cefuroxime AxetilEP Impurity-D 56238-63-2
Cefuroxime Axetil EP Impurity E947723-87-7
Cefuroxime AxetilCefuroxime Axetil sulfoxideNA
Cefuroxime AxetilR-IsomerNA
Cefuroxime AxetilS-IsomerNA
Cefuroxime sodiumEP Impurity-A56271-94-4
Clopidogrel EP Impurity-A144750-42-5
Clopidogrel EP Impurity-B144750-52-7
Clopidogrel EP Impurity-C120202-69-9
Clopidogrel EP Impurity-E90055-68-8
ColchicineEP Imp-A7411-12-03 00:00:00
ColchicineEP Imp-D477-29-2
ColchicineEP Imp-E7336-33-6
ColchicineN-Deacetyl colchicine3476-50-4
Docetaxel 7-Epi-docetaxel153381-68-1
Glibenclamide EP Impurity A16673-34-0
Glimepiride EP Impurity B119018-29-0
Glimepiride EP Impurity C 119018-30-3
HydrocortisoneEP Impurity-A50-24-8
HydrocortisoneEP Impurity-B 53-06-5
HydrocortisoneEP Impurity-E600-99-7
HydrocortisoneEP Impurity-G14760-49-7
HydrocortisoneEP Impurity-NNA
Hydrocortisone Hydrocortisone 21-Valerate6678-00-8
Ketorolac EP Impurity-A154476-25-2
Ketorolac EP Impurity-B113502-52-6
LevetiracetamEP Impurity A67118-31-4
LevetiracetamEP Impurity B358629-47-7
LevetiracetamEP Impurity C142-08-5
LevetiracetamEP Impurity D103765-01-1
LevetiracetamUSP-RCA102767-31-7
LevetiracetamUSP-RCB7682-20-4
LevetiracetamLevetiracetam Dehydro Acid358629-39-7
MetoprololEP Impurity F 7695-63-8
OmeprazoleEP Impurity-A37052-78-1
OmeprazoleEP Impurity-B110374-16-8
OmeprazoleEP Impurity-C73590-85-9
OmeprazoleEP Impurity-D88546-55-8
OmeprazoleEP Impurity-E176219-04-8
OmeprazoleEP Impurity-H863029-89-4
Paclitaxel 7-Epi-Paclitaxel105454-04-4
PaclitaxelImpurity-L92950-39-5
PaclitaxelImpurity-N27548-93-2
Paclitaxel EP Impurity G78432-77-6
PrednisolonePrednisolone-17-valerate15180-00-4
ProgesteroneEP Impurity-H1162-56-7
Progesterone6α-Hydroxy Progesterone604-20-6
Progesterone6β-Hydroxy Progesterone604-19-3
Progesterone6-Keto Progestrone2243-08-05 00:00:00
Pyridoxine EP Impurity A5196-20-3
Thiamine EP Impurity E/Thiothimine299-35-4
ThiocolchicosideEP Imp-A64-86-8
ThiocolchicosideEP Imp-B2730-71-4
ThiocolchicosideEP Imp-C87424-25-7
ThiocolchicosideEP Imp-D477-29-2
ThiocolchicosideEP Imp-E219547-29-2
ThiocolchicosideEP Imp-F602-41-5
ThiocolchicosideEP Imp-G177991-81-0
ThiocolchicosideTetra acetyl thiocolchicoside163956-01-2
Tinidazole EP Impurity B25459-12-5
TorsemideEP Impurity-A72810-61-8
TorsemideEP Impurity-B72811-73-5
TorsemideEP Impurity-D160972-33-8
TorsemideEP Impurity-E72810-57-2