Impurities

Diphenhydramine EP Impurity B

CAS Number

19804-27-4

Diphenhydramine EP Impurity C

CAS Number

118-23-0

Alternate CAS Number

1808-12-4(HCl Salt)

Diphenhydramine EP Impurity E

CAS Number

119-61-9

Diphenhydramine N-Oxide

CAS Number

3922-74-5

Alternate CAS Number

13168-00-8(HCl Salt)

Dipivefrine Standard

CAS Number

52365-63-6

Alternate CAS Number

64019-93-8(HCl Salt)

Dipivefrine

Dipyridamole Standard

CAS Number

58-32-2

Dipyridamole

Dipyridamole Standard

CAS Number

58-32-2

Dipyridamole

Donepezil Standard

CAS Number

120014-06-4

Alternate CAS Number

120011-70-3(HCl Salt)

Donepezil

Doxoflylline Impurity 1

CAS Number

1174289-18-9

Doxofylline

Doxycycline Standard

CAS Number

564-25-0

Doxycycline

Doxycycline Standard

CAS Number

564-25-0

Alternate CAS Number

10592-13-9(HCl salt);17086-28-1(Doxycycline Monohydrate)

Doxycycline

Droxidopa Amine

CAS Number

55637-52-0

Droxidopa Impurity 18

CAS Number

78603-91-5

Droxidopa Impurity 22

CAS Number

56672-56-1

Droxidopa Impurity 25

CAS Number

106887-48-3

Duloxetine EP Impurity B

CAS Number

116539-55-0

Duloxetine EP Impurity C

CAS Number

949095-98-1

Alternate CAS Number

953028-76-7 (HCl salt) ; 949096-01-9 (HBr salt)

Duloxetine EP Impurity E

CAS Number

1033803-59-6

Duloxetine EP Impurity F

CAS Number

959392-22-4

Alternate CAS Number

2379325-42-3(oxalate Salt);2748376-86-3(HCl Salt)

Duloxetine EP Impurity F

CAS Number

959392-22-4

Alternate CAS Number

2748376-86-3 (HCl salt); 2379325-42-3(oxalate Salt)

Duloxetine EP Impurity G

CAS Number

321-38-0

Duloxetine USP Related Compound H

CAS Number

199191-66-7

Econazole Standard

CAS Number

27220-47-9

Alternate CAS Number

24169-02-6(Nitrate Salt)

Econazole

Edaravone Impurity 1

CAS Number

1242471-40-4

Edaravone

Edaravone Impurity 2

CAS Number

1242471-40-4

Edaravone

Edoxaban Impurity 3

CAS Number

1353893-25-0

Edoxaban

Edoxaban Impurity 7

CAS Number

767625-11-6

Edoxaban

Elafibranor Impurity 11

CAS Number

3046217-14-2

Elafibranor

Elafibranor Impurity 13

CAS Number

Elafibranor

Elagolix Dialkylated Impurity

CAS Number

2409132-60-9

Elagolix Ethyl Ester Nitroso Impurity

CAS Number

Elagolix Impurity 3

CAS Number

Elagolix Impurity 4

CAS Number

2699942-38-4

Alternate CAS Number

2699942-37-3 (free base)

Elagolix Impurity 8

CAS Number

832720-84-0

Alternate CAS Number

1150560-46-5(HCl salt)

Elagolix Lactam Impurity

CAS Number

2248628-93-3

Elagolix Nitroso Impurity

CAS Number

Elagolix Sodium

CAS Number

832720-36-2

Alternate CAS Number

834153-87-6 (free base) ; 2390005-65-7 (HCl salt) ; 2254609-59-9 (K salt) ; 2390005-66-8 (TFA salt)

Elagolix Standard

CAS Number

834153-87-6

Alternate CAS Number

832720-36-2(Na salt);2390005-65-7 (HCl salt) ; 2254609-59-9 (K salt) ; 2390005-66-8 (TFA salt)

Elegolix Diacid Impurity

CAS Number

2409132-60-9