Levetiracetam Cyclic Acid
Impurities
Levetiracetam Cyclic Acid
Catalogue No.:
VLIM-00177
CAS No. :
67118-31-4
Mol. Formula :
C₈H₁₃NO₃
Mol. Weight :
171.2
Synonym(s):
- 2RS)-2-(2-Oxopyrrolidin-1-yl)butanoic acid
Related Products
 Sitagliptin Mandalate Acid-1664172875.png)
-5-oxopentanoic acid]-1664177909.PNG)
8 [5-amino-2-(4-amino-1,3-dioxoisoindolin-2-yl)-5-oxopentanoic acid]
Catalogue No.:
VLIM-00119
CAS No. :
2635-64-5
-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
-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
-3-nitrobenzoic acid-1664183919.png)
4-(trifluoromethyl)-3-nitrobenzoic acid
Catalogue No.:
VLIM-00237
CAS No. :
116965-16-3
-5-oxopentanoic acid]-1664260374.png)
7 [5-amino-4-(4-amino-1,3-dioxoisoindolin-2-yl)-5-oxopentanoic acid]
Catalogue No.:
VLIM-00265
CAS No. :
874760-72-2
Simvastatin hydroxy Acid Ammonium Salt
Catalogue No.:
VLME-00009
CAS No. :
139893-43-9
D-L-Mevalonic Acid Dicyclohexylammonium Salt
Catalogue No.:
VLME-00076
CAS No. :
1215802-31-5
-1659010858.png)
Pilocarpic Acid Sodium Salt (mixture of diastereomers)
Catalogue No.:
VLME-00101
CAS No. :
92598-79-3
Carboxylic acid Enzalutamide metabolite
Catalogue No.:
VLME-00211
CAS No. :
1242137-15-0
Isocitric acid trisodium salt hydrate
Catalogue No.:
VLME-00303
CAS No. :
1637-73-6 (anhydrous)
-2-hydroxyl benzoic acid (AN8323)-1659086411.png)
5-(4-cyaphexy)-2-hydroxyl benzoic acid (AN8323)
Catalogue No.:
VLME-00326
CAS No. :
613-94-5
-phthalamic acid-1659089163.png)
-1661409014.png)
(6A-11B-16A,7b-6-9-dihydro11,17 dihydroxy-16-methyl (3-IH-diene-17 carboxylic acid
Catalogue No.:
VLST-00338
CAS No. :
167997-12-8
Simvastatin Hydroxy Acid Ammonium Salt D6
Catalogue No.:
VLDL-00227
CAS No. :
139893-43-9 (unlabeled)
-α,α-dimethyl-benzeneacetic Acid Methyl E-1659093764.png)
4-[(2-Vinyl]-1-enthyne)-α,α-dimethyl-benzeneacetic Acid Methyl E
Catalogue No.:
VLME-00483
CAS No. :
1159977-63-5
Benazeprilat Benzyl Ester Analogue, Trifluoroacetic Acid Salt
Catalogue No.:
VLME-00564
CAS No. :
1356578-34-1
-1659332658.png)
Flucloxacillin Penilloic Acid (Mixture of Diastereomers)
Catalogue No.:
VLME-00685
CAS No. :
1276016-89-7
-1659333198.png)
Ibuprofen Carboxylic Acid (Mixture of Diastereomers)
Catalogue No.:
VLME-00710
CAS No. :
15935-54-3
Vildagliptin Carboxylic Acid Metabolite
Catalogue No.:
VLME-00851
CAS No. :
274901-16-5
-1659337002.png)
-β-D-glucuronic Acid Methyl-1654760281.png)
Abacavir 5’-(2,3,4-Tri-O-isobytyryl)-β-D-glucuronic Acid Methyl
Catalogue No.:
VLGL-00076
CAS No. :
NA
Acetobromo-α-D-glucuronic Acid Methyl Ester
Catalogue No.:
VLGL-00077
CAS No. :
21085-72-3
Acetobromo-α-D-glucuronic Acid-13C6 Methyl Ester
Catalogue No.:
VLGL-00078
CAS No. :
NA
Acetylsalicylic Acid Acyl-β-D-glucuronide
Catalogue No.:
VLGL-00079
CAS No. :
24719-72-0
Finasteride Carboxylic Acid Acyl-β-D-glucuronide
Catalogue No.:
VLGL-00110
CAS No. :
88426-33-9
Losartan Carboxylic Acid Acyl-β-D-Glucuronide
Catalogue No.:
VLGL-00126
CAS No. :
1799830-02-6
Mycophenolic Acid-d3 β-D-Glucuronide
Catalogue No.:
VLGL-00136
CAS No. :
31528-44-6 (unlabelled)
-Arundic Acid Acyl-β-D-Glucuronide.jpg)
-cis, trans-Abscisic Acid-1656568777.png){kind=spacer}
-(+)-Verapamilic Acid-1656571589.png)
-Arundic Acid-1656657577.png)
-Arundic Acid-1656658781.png)
-(-)-Verapamilic Acid-1656661010.png)
benzoic acid-13C6-1655452239.png)
acetic acid-1655460690.png)
2,2-Difluoro-2-(fluorosulfonyl)acetic acid
Catalogue No.:
VLBB-00017
CAS No. :
1717-59-5
benzoic acid-1655461053.png)
benzoic acid-1655461426.png)
-2-thiophenecarboxylic acid methyl ester-1655462017.png)
3-(Fluorosulfonyl)-2-thiophenecarboxylic acid methyl ester
Catalogue No.:
VLBB-00022
CAS No. :
1373233-35-2
-cis, trans-Abscisic Acid-d6-1663592731.png){kind=spacer}
Eplerenone-methyl-d3 Hydroxyacid Potassium Salt
Catalogue No.:
VLCS-00663
CAS No. :
NA
-1663665049.png)
Ibuprofen Carboxylic Acid-d3 (Mixture of Diastereomers)
Catalogue No.:
VLCS-00771
CAS No. :
1216505-29-1
-Arundic Acid-d3-1663675393.png)
-Arundic Acid-d3-1663736036.png)
Thiouric Acid-13C3 Sodium Salt Dihydrate
Catalogue No.:
VLCS-01558
CAS No. :
1330823-16-9
Topotecan-d6 Carboxylic Acid Sodium Salt
Catalogue No.:
VLCS-01579
CAS No. :
1263470-27-4
Alendronic Acid, Monosodium Salt, Trihydrate
Catalogue No.:
VLST-01528
CAS No. :
66376-36-1
Ethylenediaminediacetic Acid Dipropionic Acid
Catalogue No.:
VLST-01829
CAS No. :
32701-19-2
-1655199207.png)
4-Aminobutyric Acid Hydroiodide (GABA•HI)
Catalogue No.:
VLCR-00069
CAS No. :
2096495-60-0
-1664263115.png)
4-Phenylbutyric-d11 Acid (3-Benzylpropionic Acid)
Catalogue No.:
VLDL-01846
CAS No. :
358730-86-6
Obeticholic Acid Glycine D4
Catalogue No.:
VLDL-01994
CAS No. :
863239-60-5(Unlabeled)
Tauroursodeoxycholic Acid Sodium Salt D4
Catalogue No.:
VLDL-02041
CAS No. :
14605-22-2 (unlabelled)
-1657629739.png)
-1654844113.png)
-1,2,4-cyclopentanetricarboxylic Acid 1,4 2,3-Dianhydride (CMCTD, TCAAH)-1654844289.png)
3-(Carboxymethyl)-1,2,4-cyclopentanetricarboxylic Acid 1,4 2,3-Dianhydride (CMCTD/ TCA)
Catalogue No.:
VLSC-00035
CAS No. :
6053-46-9
Cyclobutane 1,2,3,4- tetracarboxylic acid dianhydride [CBDA]
Catalogue No.:
VLSC-00042
CAS No. :
4415-87-6
-1654846249.png)
1,3-Dimethyl-1,2,3,4-cyclobutanetetracarboxylic acid 1,2:3,4-dianhydride (DCBT)
Catalogue No.:
VLSC-00046
CAS No. :
137820-87-2
cyclopentane-1,2,4-tricarboxylic acid (CMCTD N-1) PRECURSER-1654846749.png)
3-(carboxymethyl)cyclopentane-1,2,4-tricarboxylic acid (CMCTD N-1) PRECURSER
Catalogue No.:
VLSC-00058
CAS No. :
24434-90-0
fluoren-9-yl]benzoic acid (BPAF N-1) PRECURSER-1654846811.png)
4-[9-(4-carboxyphenyl)fluoren-9-yl]benzoic acid (BPAF N-1) PRECURSER
Catalogue No.:
VLSC-00059
CAS No. :
54941-51-4
-1664255922.png)
Valproic acid impurity K(2-methyl-2-ethyl-pentanoic acid)
Catalogue No.:
VLIM-00749
CAS No. :
5343-52-2
-1664256065.png)
Acemetacin Impurity A(4-Chlorobenzoic acid)
Catalogue No.:
VLIM-00757
CAS No. :
74-11-3
O- Desmethyl venlafaxine cyclic impurity
Catalogue No.:
VLIM-00806
CAS No. :
1346601-55-5
 Impurity-1666010371.png)
N-Nitroso-N-methyl-4-aminobutyric Acid(NMBA) Impurity
Catalogue No.:
VLIM-00869
CAS No. :
61445-55-4
-3-((tert-Butoxycarbonyl)amino)-4-(2,4-difluorophenyl)butanoic Acid-1666075100.png)
(R)-3-((tert-Butoxycarbonyl)amino)-4-(2,4-difluorophenyl)butanoic Acid
Catalogue No.:
VLIM-00874
CAS No. :
851307-12-5
-3-((tert-butoxycarbonyl)amino)-4-(2,5-difluorophenyl)butanoic acid-1666076153.png)
(R)-3-((tert-butoxycarbonyl)amino)-4-(2,5-difluorophenyl)butanoic acid
Catalogue No.:
VLIM-00877
CAS No. :
486459-98-7
-1668409465.png)
Clavulanic Acid methyl ester 13C D3
Catalogue No.:
VLDL-02153
CAS No. :
57943-82-5 (Unlabeled)
ascetic acid-1681387890.png)
2-(4-hydroxy-3,5-dinitrophenyl)ascetic acid
Catalogue No.:
VLST-02282
CAS No. :
10463-37-3
-1682503339.png)
Phenylpherine impurity F (2-Naphtaleneacetic acid)
Catalogue No.:
VLIM-00932
CAS No. :
581-96-4
