Anhydride impurity

CAS No: 217636-50-5
Chemical Name:
2-(4-(4-Chlorobenzoyl)phenoxy)-2-methylpropanoic anhydride
Molecular Formula:
C34H28Cl2O7

USP RRT0.80/EP-E

CAS No: 42019-08-9
Chemical Name:
ethyl 2-(4-(4-chlorobenzoyl)phenoxy)-2-methylpropanoate
Molecular Formula:
C19H19ClO4

USP RRT0.85/EP-F

CAS No: 154356-96-4
Chemical Name:
(4-Chlorophenyl)[4-(1-methylethoxy)phenyl]methanone
Molecular Formula:
C16H15ClO2

USP RCC/EP-G

CAS No: 217636-48-1
Chemical Name:
1-Methylethyl 2-[[2-[4-(4-chlorobenzoyl)phenoxy]-2-methylpropanoyl]oxy]-2-methylpropanoate
Molecular Formula:
C24H27ClO6

Impurity-1

CAS No: 10547-60-1
Chemical Name:
4-chloro-4'-methoxybenzophenone
Molecular Formula:
C14H11ClO2

Impurity-2

CAS No: 55270-71-8
Chemical Name:
(2-chlorophenyl)(4-hydroxyphenyl)methanone
Molecular Formula:
C13H9ClO2

Impurity-3

CAS No: 61002-52-6
Chemical Name:
(3-chlorophenyl)(4-hydroxyphenyl)methanone
Molecular Formula:
C13H9ClO2

Impurity-4

CAS No: 61024-31-5
Chemical Name:
2-(4-(2-chlorobenzoyl)phenoxy)-2-methylpropanoic acid
Molecular Formula:
C17H15ClO4

Impurity-5

CAS No: 60012-96-6
Chemical Name:
2-(4-(3-Chlorobenzoyl)phenoxy)-2-methylpropanoic acid
Molecular Formula:
C17H15ClO4

Reference standared

CAS No: 49562-28-9
Chemical Name:
Isopropyl 2-[4-(4-chlorobenzoyl)phenoxy]-2-methylpropanoate
Molecular Formula:
C20H21ClO4

USP ECA/EP-A

CAS No:  42019-78-3
Chemical Name:
(4-chlorophenyl)(4-hydroxyphenyl)methanone
Molecular Formula:
C13H9ClO2

USPRCB/EP-B

CAS No: 42017-89-0
Chemical Name:
2-(4-(4-chlorobenzoyl)phenoxy)-2-methylpropanoic acid
Molecular Formula:
C17H15ClO4

USP RRT0.50/EP-C

CAS No: 217636-47-0
Chemical Name:
(3RS)-3-[4-(4-Chlorobenzoyl)phenoxy]butan-2-one
Molecular Formula:
C17H15ClO3

USP RRT0.65 /EP-D

CAS No: 42019-07-8
Chemical Name:
Methyl 2-[4-(4-chlorobenzoyl)phenoxy]-2-methylpropanoate
Molecular Formula:
C18H17ClO4