Amide-1

CAS No:  2197414-57-4
Chemical Name:
5-Amino-4-(4-amino-1-oxoisoindolin-2-yl)-5-oxopentanoic acid
Molecular Formula:
C13H15N3O4

Amide-2

CAS No:  2197420-75-8
Chemical Name:
5-amino-2-(4-amino-1-oxoisoindolin-2-yl)-5-oxopentanoic acid
Molecular Formula:
C13H15N3O4

7-Amine impurity

CAS No: 191732-75-9
Chemical Name:
3-(7-amino-1-oxoisoindolin-2-yl)piperidine-2,6-dione
Molecular Formula:
C13H13N3O3

5-Nitro impurity

CAS No: 1198787-23-3
Chemical Name:
3-(5-nitro-1-oxoisoindolin-2-yl)piperidine-2,6-dione
Molecular Formula:
C13H11N3O5

5-Amine impurity

CAS No: 191732-74-8
Chemical Name:
3-(5-amino-1-oxoisoindolin-2-yl)piperidine-2,6-dione
Molecular Formula:
C13H13N3O3

6-Amine impurity

CAS No: 191732-74-8
Chemical Name:
3-(6-amino-1-oxoisoindolin-2-yl)piperidine-2,6-dione
Molecular Formula:
C13H13N3O3

6-Nitro impurity

CAS No: NA
Chemical Name:
3-(6-nitro-1-oxoisoindolin-2-yl)piperidine-2,6-dione
Molecular Formula:
C13H11N3O5

N-Hydroxy impurity

CAS No: 2717380-87-3
Chemical Name:
3-(4-(Hydroxyamino)-1-oxoisoindolin-2-yl)piperidine-2,6-dione
Molecular Formula:
C13H13N3O4

Benzyldione impurity

CAS No: 24666-55-5
Chemical Name:
Benzyl (2,6-dioxopiperidin-3-yl)carbamate
Molecular Formula:
C13H14N2O4

Imprity-12

CAS No: NA
Chemical Name:
3-(4-Nitroso-1-oxoisoindolin-2-yl)piperidine-2,6-dione
Molecular Formula:
C13H11N3O4

Imprity-13

CAS No: 2650-64-8
Chemical Name:
5-amino-2-(benzyloxycarbonylamino)-5-oxopentanoic acid
Molecular Formula:
C13H16N2O5

7-Nitro impurity

CAS No: NA
Chemical Name:
3-(7-nitro-1-oxoisoindolin-2-yl)piperidine-2,6-dione
Molecular Formula:
C13H11N3O5

Imprity-7

CAS No:  90725-68-1
Chemical Name:
methyl 2-(bromomethyl)-5-nitrobenzoate
Molecular Formula:
C9H8BrNO4

Imprity-8

CAS No: 61940-21-4
Chemical Name:
methyl 2-(bromomethyl)-6-nitrobenzoate
Molecular Formula:
C9H8BrNO4

Imprity-9

CAS No: 1628915-10-5
Chemical Name:
Methyl 2-(hydroxymethyl)-3-nitrobenzoate
Molecular Formula:
C9H9NO5

Imprity-10

CAS No: 65399-18-0
Chemical Name:
4-Nitroisobenzofuran-1(3H)-one
Molecular Formula:
C8H5NO4

Imprity-11

CAS No: 59434-19-4
Chemical Name:
4-Aminoisobenzofuran-1(3H)-one
Molecular Formula:
C8H7NO2

Imprity-2

CAS No: 98475-07-1
Chemical Name:
Methyl 2-(bromomethyl)-3-nitrobenzoate
Molecular Formula:
C9H8BrNO4

Imprity-3

CAS No: 1218910-61-2
Chemical Name:
Methyl 2-(chloromethyl)-3-nitrobenzoate
Molecular Formula:
C9H8ClNO4

Imprity-4

CAS No: 1975-50-4
Chemical Name:
2-methyl-3-nitrobenzoic acid
Molecular Formula:
C8H7NO4

Imprity-5

CAS No: 59382-59-1
Chemical Name:
methyl 2-methyl-3-nitrobenzoate
Molecular Formula:
C9H9NO4

Imprity-6

CAS No: 133446-99-8
Chemical Name:
methyl 2-(bromomethyl)-4-nitrobenzoate
Molecular Formula:
C9H8BrNO4

Reference standared

CAS No: 191732-72-6
Chemical Name:
3-(4-Amino-1,3-dihydro-1-oxo-2H-isoindol-2-yl)-2,6-piperidinedione
Molecular Formula:
C13H13N3O3

4-Nitro impurity

CAS No: 827026-45-9
Chemical Name:
3-(1,3-Dihydro-4-nitro-1-oxo-2H-isoindol-2-yl)-2,6-piperidinedione
Molecular Formula:
C13H11N3O5

N-Formyl impurity

CAS No: 2197414-56-3
Chemical Name:
N-(2-(2,6-Dioxopiperidin-3-yl)-1-oxoisoindolin-4-yl)formamide
Molecular Formula:
C14H13N3O4

N-Acetylimpurity

CAS No: 1421593-80-7
Chemical Name:
N-(2-(2,6-Dioxopiperidin-3-yl)-1-oxoisoindolin-4-yl)acetamide
Molecular Formula:
C15H15N3O4

Imprity-1

CAS No: 24666-56-6
Chemical Name:
3-Aminopiperidine-2,6-dione hydrochloride
Molecular Formula:
C5H9ClN2O2