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Donepezil Pyridine analogue Impurity
Impurities
Donepezil Pyridine analogue Impurity
Catalogue No.:
VLIM-00801
CAS No. :
4803-57-0
Mol. Formula :
C₁₇H₁₇NO₃
Mol. Weight :
283.32
Synonym(s):
- 5,6-dimethoxy-2-(pyridin-4-ylmethyl)-2,3-dihydroinden-1-one
- 5,6-dimethoxy-2-(4-pyridylmethyl)-1-indanone
Related Products
-1,2-Propane Diol(Impurity -A)-1664172015.png)
3-(3,5-Dimethyl Phenoxy )-1,2-Propane Diol(Impurity -A)
Catalogue No.:
VLIM-00004
CAS No. :
59365-66-1
-1664176505.png)
-1664176564.png)
Ezetimibe Tetrahydropyran Analog Impurity
Catalogue No.:
VLIM-00140
CAS No. :
1296129-15-1
Lercanidipine Hydrochloride Impurity D
Catalogue No.:
VLIM-00158
CAS No. :
887769-34-8
-1664181067.png)
Mesalamin Impurity A – 4-Aminophenol R (EP)
Catalogue No.:
VLIM-00167
CAS No. :
123-30-8
-1664181097.png)
Mesalamin Impurity B – 3-Aminophenol R (EP)
Catalogue No.:
VLIM-00168
CAS No. :
591-27-5
-1664181127.png)
Mesalamin Impurity C – 2-Aminophenol R (EP)
Catalogue No.:
VLIM-00169
CAS No. :
95-55-6
-1664181155.png)
Mesalamin Impurity D – 3-Aminobenzoic acid (EP)
Catalogue No.:
VLIM-00170
CAS No. :
99-05-8
-1664181186.png)
Mesalamin Impurity F – 3-Aminosalicylic acid (DMF)
Catalogue No.:
VLIM-00171
CAS No. :
570-23-0
-1664181257.png)
Mesalamin Impurity G –2,5-dihydroxybenzoic acid (EP)
Catalogue No.:
VLIM-00172
CAS No. :
490-79-9
-1664181304.png)
-1664181321.png)
Ursodeoxycholic acid alcohol(impurity-I)
Catalogue No.:
VLIM-00175
CAS No. :
130593-75-8
-1664181339.png)
Ursodeoxycholic acid methyl ester (impurity-G)
Catalogue No.:
VLIM-00176
CAS No. :
10538-55-3
Atorvastatin Epoxy Pyrrolooxazin 7-hydroxy Analog (Atorvastatin FX1 Impurity
Catalogue No.:
VLIM-00236
CAS No. :
1315629-79-8
-1664184171.png)
Amlodipine EP Impurity D HCl
Catalogue No.:
VLIM-00277
CAS No. :
113994-41-5 (free base)
-1664259824.png)
-1664259875.png)
Amlodipine Impurity 27 Disodium Salt(120289-11-4)
Catalogue No.:
VLIM-00280
CAS No. :
120289-11-4 (free Acid)
-1664259335.png)
Amlodipine EP Impurity E Maleate(diethyl ester)
Catalogue No.:
VLIM-00289
CAS No. :
140171-65-9
-Enalapril Maleate)-1664185806.png)
Enalapril EP Impurity A Maleate ((S,S,R)-Enalapril Maleate)
Catalogue No.:
VLIM-00296
CAS No. :
76420-74-1
O-Desmethyl Dextromethorphan Dextro Impurity B
Catalogue No.:
VLME-00045
CAS No. :
1426173-22-9
Benazeprilat Benzyl Ester Analogue, Trifluoroacetic Acid Salt
Catalogue No.:
VLME-00564
CAS No. :
1356578-34-1
-1659332758.png)
Fluvastatin N-Ethyl Sodium Salt (Fluvastatin Impurity)
Catalogue No.:
VLME-00689
CAS No. :
93936-64-2
-N-oxide-1659333218.png)
 ((3S,5R)-Ator-1656588647.png){kind=spacer}
10-trans-Atorvastatin (Atorvastatin Impurity AT10) ((3S,5R)-Ator
Catalogue No.:
VLCS-00196
CAS No. :
148217-40-7
-1656589501.png)
Carprofen Ethyl Ester (Carprofen Impurity)
Catalogue No.:
VLCS-00200
CAS No. :
52262-89-2
-1656592188.png)
Desmethyl Piroxicam (Piroxicam Impurity B)
Catalogue No.:
VLCS-00231
CAS No. :
65897-46-3
-2-(Piperidin-2-yl)pyridine-1655882954.png)
-2-(Piperidin-2-yl)pyridine-1655883037.png)
pyridine-1655123085.png)
PYD-2Cz ; 2,6-di(9H-carbazol-9-yl)pyridine
Catalogue No.:
VLCR-00014
CAS No. :
168127-49-9
-1664263019.png)
-1664188739.png)
-1664191959.png)
-1664192086.png)
-1664193182.png)
-1664192184.png)
Pramipexole EP Impurity C [Pramipexole Dimer Impurity]
Catalogue No.:
VLIM-00458
CAS No. :
1973461-14-1
-1664193239.png)
-1664194098.png)
-1664194479.png)
-4-Bromomethylbiphenyl– Olmesartan Impurity-1664195590.png)
2-(N-Triphenylmethyl tetrazotyl)-4-Bromomethylbiphenyl– Olmesartan Impurity
Catalogue No.:
VLIM-00630
CAS No. :
88546-55-8
Terbinafine Related Compound Impurity A
Catalogue No.:
VLIM-00659
CAS No. :
'65473-13-4
Terbinafine Related Compound Impurity B
Catalogue No.:
VLIM-00660
CAS No. :
'176168-78-8
Terbinafine Related Compound Impurity C
Catalogue No.:
VLIM-00661
CAS No. :
877265-30-3
Terbinafine Related Compound Impurity D
Catalogue No.:
VLIM-00662
CAS No. :
'877265-33-3
-1664196853.png)
Terbinafine EP Impurity E(Dimer Impurity)
Catalogue No.:
VLIM-00695
CAS No. :
934365-23-8
 EP impurity J-1664197320.png)
-1664255576.png)
Colchicine Impurity C (β-Lumicolchicine)
Catalogue No.:
VLIM-00741
CAS No. :
6901-13-9
-1664255922.png)
Valproic acid impurity K(2-methyl-2-ethyl-pentanoic acid)
Catalogue No.:
VLIM-00749
CAS No. :
5343-52-2
-1664256048.png)
-1664256065.png)
Acemetacin Impurity A(4-Chlorobenzoic acid)
Catalogue No.:
VLIM-00757
CAS No. :
74-11-3
-1656592707.png)
O- Desmethyl venlafaxine cyclic impurity
Catalogue No.:
VLIM-00806
CAS No. :
1346601-55-5
Vildagliptin Diketopiperazine Impurity
Catalogue No.:
VLIM-00815
CAS No. :
1789703-36-1
Ciprofloxacin Hydrochloride –impurity A
Catalogue No.:
VLIM-00832
CAS No. :
86393-33-1
 Impurity-1666010371.png)
N-Nitroso-N-methyl-4-aminobutyric Acid(NMBA) Impurity
Catalogue No.:
VLIM-00869
CAS No. :
61445-55-4
-1666073547.png)
-1666077035.png)
-3,4-dimethoxypyridine hydrochloride-1666260886.png)
2-(Chloromethyl)-3,4-dimethoxypyridine hydrochloride
Catalogue No.:
VLIM-00886
CAS No. :
72830-09-2
-1682503339.png)
Phenylpherine impurity F (2-Naphtaleneacetic acid)
Catalogue No.:
VLIM-00932
CAS No. :
581-96-4
-1684476701.png)
-1684477420.png)
Isobutyl-glutarmonoamide (Pregabalin Impurity-USP)
Catalogue No.:
VLIM-01019
CAS No. :
181289-15-6
