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Impurities

Impurities: Impurities are substances inside a confined amount of liquid, gas, or solid, which differ from the chemical composition of the material or compound. Impurities are either naturally occurring or added during synthesis of a chemical or commercial product.
 
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Catalogue No.:VL/I-13604
CAS No. :NA
Mol. Formula :C14H16N10O4
Mol. Weight :388.34
Synonym :Acyclovir EP Impurity I

Catalogue No.:VL/I-13636
CAS No. :
Mol. Formula :C17H18N2O3S
Mol. Weight :330.4
Synonym :(2S,3S)-5-(2-Aminoethyl)-3-hydroxy-2-(4-hydroxyphenyl)-2,3-dihydro-1, 5-benzothiazepine-4(5H)-one

Catalogue No.:VL/I-13619
CAS No. :372941-54-3
Mol. Formula :C20H19FN2O2
Mol. Weight :338.37
Synonym :1-[3-(Dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-3-oxo- 5-isobenzofurancarbonitrile; USP Citalopram Related Compound C; Escitalopram EP Impurity C

Catalogue No.:VL/I-13634
CAS No. :
Mol. Formula :C12H15ClF2N2O
Mol. Weight :276.71
Synonym :4-(2,4-Difluorobenzoyl)piperidine Oxime Hydrochloride

Catalogue No.:VL/I-13609
CAS No. :210980-68-0
Mol. Formula :C25H36O4
Mol. Weight :400.55
Synonym :2,2-Dimethylbutanoic Acid (1S,3R,7S,8S,8aR)-8-[2-[(2R)-3,6-Dihydro-6-oxo-2H-pyran -2-yl]ethyl]-1,2,3,7,8,8a-hexahydro-3,7-dimethyl-1-naphthalenyl Ester; Simvastatin EP Impurity C;

Catalogue No.:VL/I-13657
CAS No. :43200-81-3
Mol. Formula :C11H7ClN4O2
Mol. Weight :262.65
Synonym :7RS)-6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one ;

Catalogue No.:VL/I-13663
CAS No. :328-90-5
Mol. Formula :C8H5F3O3
Mol. Weight :206.12
Synonym :RARECHEM AL BE 1424;3-(trifluoromethyl)-2-hydroxybenzoic acid;Trifluoromehtylsalicylicacid;2-Hydroxy-3-(trifluoromethyl)benzoic acid 95%;3-(Trifluoromethyl)salicylic acid, 3-Carboxy-2-hydroxybenzotrifluoride;2-Hydroxy-3-(trifluoromethyl)benzoicacid95%

Catalogue No.:VL/I-13610
CAS No. :174756-45-7
Mol. Formula :C17H20N4OS
Mol. Weight :328.43
Synonym :LY 290411;2-Hydroxymethyl Olanzapine;2-Hydroxymethyl Olanzapine-d3;2-HydroxyMethyl Olanzapine-d3 (Major);4-(4-Methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5]benzodiazepine-2-methanol;4-(4-Methyl-1-piperazinyl)-10H-thieno[2,3-β][1,5]benzodiazepine-2-methanol;4-[4-(Methyl-d3)-1-piperazinyl]-10H-thieno[2,3-β][1,5]benzodiazepine-2-methanol;4-[4-(Methyl-d3)-1-piperazinyl]-10H-thieno[2,3-b][1,5]benzodiazepine-2-methanol

Catalogue No.:VL/I-13606
CAS No. :102767-31-7
Mol. Formula :C8H15ClN2O2
Mol. Weight :206.67
Synonym :S)-N-[1-(Aminocarbonyl)propyl]-4-chlorobutanamide

Catalogue No.:VL/I-13603
CAS No. :NA
Mol. Formula :166726-90-9
Mol. Weight :339.3
Synonym :(2-((2-Acetamido-6-oxo-1H-purin-9(6H)-yl)methoxy)ethoxy)methyl Acetate;N2-Acetyl Acyclovir Methyl Acetate

Catalogue No.:VL/I-13602
CAS No. :NA
Mol. Formula :C9H13N5O4
Mol. Weight :255.23
Synonym :Acyclovir EP Impurity O

Catalogue No.:VL/I-13595
CAS No. :433289-84-0 (acid)
Mol. Formula :C33H35N2NaO5
Mol. Weight :562.63
Synonym :Atorvastatin EP Impurity A (Sodium Salt) ; Atorvastatin USP Related Compound A ; Desfluoro Atorvastatin Sodium ; (3R,5R)-7-[3-(Phenylcarbamoyl)-5-phenyl-2-isopropyl-4-phenyl-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic acid sodium salt

Catalogue No.:VL/I-13594
CAS No. : 693793-53-2
Mol. Formula :C33H33F2N2NaO5
Mol. Weight :598.61
Synonym :(βR,δR)-2,3-Bis(4-fluorophenyl)-β,δ-dihydroxy-5-(1-methylethyl)-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic acid hemicalcium salt

Catalogue No.:VL/I-13596
CAS No. :125971-95-1
Mol. Formula :C40H47FN2O5
Mol. Weight :654.81
Synonym :(4R,6R)-6-[2-[2-(4-Fluorophenyl)-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrol-1-yl]ethyl]-2,2-dimethyl-1,3-dioxane-4-acetic Acid 1,1-Dimethylethyl Ester

Catalogue No.:VL/I-13593
CAS No. :887196-25-0
Mol. Formula :C33H34Ca0.5FN2O5
Mol. Weight :577.67
Synonym :(βR,δR)-2-(4-Fluorophenyl)-β,δ-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic acid hemicalcium salt

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