Naproxen Impurities

Naproxen below Impurities.

1.Impurity Name: Naproxen EP Impurity A
Chemical Name: (2S)-2-(6-Hydroxynaphthalen-2-yl)propanoic acid
Mol Wt : 216.23
Mol Form: C13H12O3

2.Impurity Name: Naproxen EP Impurity B
Chemical Name: (2S)-2-(5-Chloro-6-methoxynaphthalen-2-yl)propanoic acid
Mol Wt : 264.7
Mol Form: C14H13ClO3
3.Impurity Name: Naproxen EP Impurity C
Chemical Name: (2S)-2-(5-Bromo-6-methoxynaphthalen-2-yl)propanoic acid
Mol Wt : 309.16
Mol Form: C14H13BrO3
4.Impurity Name: Naproxen EP Impurity D
Chemical Name: (2S)-2-(5-Iodo-6-methoxynaphthalen-2-yl)propanoic acid
Mol Wt : 356.16
Mol Form: C14H13IO3
5.Impurity Name: Naproxen EP Impurity E
Chemical Name: Methyl (2S)-2-(6-methoxynaphthalen-2-yl)propanoate
Mol Wt : 244.29
Mol Form: C15H16O3
6.Impurity Name: Naproxen EP Impurity H
CAS Number: 5111-66-0
Chemical Name: 2-Hydroxy-6-methoxynaphthalene
Mol Wt : 174.20
Mol Form: C11H10O2

7.Impurity Name: Naproxen EP Impurity J
CAS Number: 21388-17-0
Chemical Name: 2-Ethyl-6-methoxynaphthalene
Mol Wt : 186.26
Mol Form: C13H14O
8.Impurity Name: Naproxen EP Impurity K
CAS Number: 77301-42-9
Chemical Name: (1RS)-1-(6-Methoxy-2-naphthyl)ethano
Mol Wt : 202.26
Mol Form: C13H14O2

9.Impurity Name: Naproxen EP Impurity L
CAS Number: 3900-45-6
Chemical Name: 1-(6-Methoxy-2-naphthalenyl)ethanone; 2-Acetyl-6-methoxynaphthalene; 6-Acetyl-2-methoxynaphthalene
Mol Wt : 200.24