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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-13623
CAS No. :100-69-6
Mol. Formula :C7H7N
Mol. Weight :105.14
Synonym :2-Vinylpyridine

Catalogue No.:VL/I-13626
CAS No. :103-74-2
Mol. Formula :C7H9NO
Mol. Weight :123.15
Synonym :2-(2-Hydroxyethyl)pyridine, 2-(2-Pyridyl)ethanol

Catalogue No.:VL/I-13615
CAS No. :1262133-64-1
Mol. Formula :C20H30FN3O9
Mol. Weight :475.46
Synonym :3’-O-(5’-Deoxy-β-D-ribofuranosyl) Capecitabine

Catalogue No.:VL/I-13656
CAS No. :331943-04-5
Mol. Formula :C17H14F3N3O2S
Mol. Weight :381.37
Synonym :Celecoxib EP Impurity B (Celecoxib regio Isomer,N-De(4-sulfonamidophenyl)-N’-(4-sulfonamidophenyl) Celecoxib

Catalogue No.:VL/I-13646
CAS No. :93106-58-2
Mol. Formula :C₁₇H₁₈ClN₃O₃
Mol. Weight :347.8
Synonym :6-chloro-1-cyclopropyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid 

Catalogue No.:VL/I-13605
CAS No. :67118-31-4
Mol. Formula :C8H13NO3
Mol. Weight :171.2
Synonym :2RS)-2-(2-Oxopyrrolidin-1-yl)butanoic acid

Catalogue No.:VL/I-13661
CAS No. :
Mol. Formula :C61H109N11O12
Mol. Weight :1188.58
Synonym :Cyclosporine Impurity B

Catalogue No.:VL/I-13662
CAS No. :59787-61-0
Mol. Formula :C62H111N11O13
Mol. Weight :1218.61
Synonym :CYCLOSPORIN C;Thr2-cyclosporine;Cyclo[L-alanyl-D-alanyl-N-methyl-L-leucyl-N-methyl-L-leucyl-N-methyl-L-valyl-3-hydroxy-N,4-dimethyl-L-2-amino-6-octenoyl-L-threonyl-N-methylglycyl-N-methyl-L-leucyl-L-valyl-N-methyl-L-leucyl];(3R,4R)-3-Hydroxy-N-methyl-5-[(E)-1-propenyl]-cyclo(L-Leu-L-Thr-Sar-N-methyl-L-Leu-L-Val-N-methyl-L-Leu-L-Ala-D-Ala-N-methyl-L-Leu-N-methyl-L-Leu-N-methyl-L-Val-);WF-3484;7-L-Threoninecyclosporin A;Cyclosporine IMpurity-C;7-L-Threoninecyclosporin A, WF 3484

Catalogue No.:VL/I-13653
CAS No. :15362-40-0
Mol. Formula :C14H9Cl2NO
Mol. Weight :278.13
Synonym :1-(2,6-Dichlorophenyl)-1,3-dihydro-2H-indol-2-one, N-(2,6-Dichlorophenyl)-2-indolinone, NSC 621845

Catalogue No.:VL/I-13652
CAS No. :22121-58-0
Mol. Formula :C13H9Cl2NO
Mol. Weight :266.12
Synonym :Diclofenac EP Impurity B ; 2-[(2,6-Dichlorophenyl)amino]benzaldehyde

Catalogue No.:VL/I-13651
CAS No. :27204-57-5
Mol. Formula :C1311Cl2NO
Mol. Weight :268.14
Synonym :Diclofenac Impurity C;Diclofenac alcohol ;2-[(2,6-Dichlorophenyl)amino]benzenemethanol; [2-[(2,6-Dichlorophenyl)amino]phenyl]methanol; o-(2,6-Dichloroanilino)benzyl Alcohol; Diclofenac impurity C;CS-O-10376 

Catalogue No.:VL/I-13649
CAS No. :127792-45-4
Mol. Formula :C14H11BrClNO2
Mol. Weight :340.59
Synonym :Diclofenac EP Impurity D ; 2-[2-[(2-Bromo-6-chlorophenyl) amino]phenyl] acetic acid 

Catalogue No.:VL/I-13650
CAS No. :59-48-3
Mol. Formula :C8H7NO
Mol. Weight :133.15
Synonym :Diclofenac EP Impurity E;2-Oxindole ;2-Indolone;1,3-Dihydro-2H-indol-2-one;2-Oxindole;2-Indolone.;CS-P-00400

Catalogue No.:VL/I-13647
CAS No. :144809-28-9
Mol. Formula :C19H18N2O3S
Mol. Weight :354.42
Synonym :5-[4-[2-(5-Ethylpyridin-2-yl)ethoxy]benzylidene]thiazolidine-2,4-dione;5-[[4-[2-(5-Ethyl-2-pyridinyl)ethoxy]phenyl]-methylene]-2,4-thiazolidinedione

Catalogue No.:VL/I-13641
CAS No. :103532-26-9
Mol. Formula :C22H26N2O4S
Mol. Weight :414.52
Synonym :(-)-trans-Diltiazem; (2R,3S)-5-[2-(dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl acetate

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