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We have our own collection of different ' Drug Impurity ' samples of various bulk drugs.

The speciality of our ' Drug Impurity ' samples are such that these are potential impurities of specific drug substances but are not available from different pharmacopoeial committe as ' Standard Impurity Samples '.

We can supply the following ' Drug Impurity ' samples ( 5 - 10 mg ) packed & sealed in glass vials with purity certificates & HPLC chromatograms ( proof of percentage purity ) :

Amlodipine Besylate

  • Phthaloyl amlodipine.
  • Amlodipine base.

Betamethasone Dipropionate

  • Betamethasone - 17 - Propionate
  • Betamethasone - 21 - Propionate

Cetirizine Dihydrochloride

  • 1-[(4-chlorophenyl) phenylmethyl] piperazine
    [ Cetirizine Impurity - A EP ]

Fluconazole

  • 1,2 - epoxy - 2 - ( 2,4 - difluorophenyl ) - 3 - ( 1,2,4 - triazol - 1- yl ) - propane methane sulfonate
  • Fluconazole isomer

Loratadine

  • 4 - ( 8 - chloro - 5,6 - dihydro - 11H - benzo - [ 5,6 ] cyclohepta [ 1,2 - b ] pyridin - 11 - ylidene ) 1 - methyl piperidine

Omeprazole

  • 5 - methoxy -1H - benzimidazole - 2 - thiol
  • 5 - methoxy - 2 - {( 3,5 - dimethyl - 4 - methoxy - 2 - pyridinyl ) methyl thio } 1H - benzimidazole
  • Omeprazole sulphone

Rifampicin

  • Rifampicin - INH Complex
    [Potential impurity in rifampicin - isoniazid combination tablets / capsules]
  • 3 - formyl rifampicin
  • Rifampicin N - Oxide
  • Rifampicin quinone
  • 25 - desacetyl rifampicin
  • 23 - transacetyl rifampicin
  

Azithromycin

  • Erythromycin A 9 - Oxime
  • Erythromycin A imino ether
  • Azaerythromycin A

Carvedilol

  • 4-hydroxy Carbazole
  • 4-(2,3-epoxy propoxy) carbazole
  • 2-(2-methoxy phenoxy) ethylamine

Cefuroxime Axetil

  • Cefuroxime Delta - 3 isomer

Losartan Potassium

  • N-(triphenyl methyl)-5-(4-methyl biphenyl-2-yl) tetrazole
  • 2-butyl-4-chloro-5-(hydroxy methyl)-1-((triphenyl methyl) tetrazole-5-yl) biphenyl-4-yl-imidazole
  • Losartan Base

Nicorandil

  • N - ( 2 - hydroxyethyl ) nicotinamide

Ranitidine Hydrochloride

  • [5-[(dimethylamino) methyl] furan-2-yl ] methanol

Venlafaxine Hydrochloride

  • 1-(p-methoxy phenyl)-1-(hydroxy cyclohexyl) acetonitrile
  • 2-(p-methoxy phenyl)-2-(1-hydroxy cyclohexyl) ethylamine

Zopiclone

  • 6-(5-chloropyridine-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrolo [3,4-b] pyrazin-5-one ....... and many more