timolol maleate and its Impurities

A medication used to treat ocular hypertension and glaucoma. Antihypertensive, antiarrhythmic (class II) and antianginal drug.Reference standards of Timolol Maleate API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 31 results for timolol maleate Impurities
PA 20 36000

Timolol Maleate - API

Timolol Maleate


  • Catalogue No.:PA 20 36000

  • CAS :

    26921-17-5

  • Molecular Formula : C17H28N4O7S

  • Molecular Weight : 432.49

PA 20 36010

Timolol Maleate - Impurity A

(R)-Timolol


  • Catalogue No.:PA 20 36010

  • CAS :

    26839-76-9

  • Molecular Formula : C13H24N4O3S

  • Molecular Weight : 316.42

PA 20 36020

Timolol Maleate - Impurity B

rac-Isotimolol


  • Catalogue No.:PA 20 36020

  • CAS :

    59697-06-2

  • Molecular Formula : C13H24N4O3S

  • Molecular Weight : 316.42

PA 20 36030

Timolol Maleate - Impurity C

2-[4-(4-Morpholinyl)-1,2,5-thiadiazol-3-yl]-rac-Timolol Ether


  • Catalogue No.:PA 20 36030

  • CAS :

    610271-56-2

  • Molecular Formula : C19H31N7O4S2

  • Molecular Weight : 485.62

PA 20 36031

Timolol Maleate - Impurity C (Maleate Salt)

2-[4-(4-Morpholinyl)-1,2,5-thiadiazol-3-yl]-rac-Timolol Ether Maleate


  • Catalogue No.:PA 20 36031

  • CAS :

    610271-57-3

  • Molecular Formula : C23H35N7O8S2

  • Molecular Weight : 601.70

PA 20 36040

Timolol Maleate - Impurity D

4-Morpholin-4-yl-1,2,5-thiadiazol-3-ol


  • Catalogue No.:PA 20 36040

  • CAS :

    30165-97-0

  • Molecular Formula : C6H9N3O2S

  • Molecular Weight : 187.22

PA 20 36050

Timolol Maleate - Impurity E

(2Z)-4-[(1S)-1-[[(1,1-Dimethylethyl)amino]methyl]-2-[[4-(morpholin-4-yl)-1,2,5- thiadiazol-3-yl]oxy]ethoxy]-4-oxobut-2-enoic Acid


  • Catalogue No.:PA 20 36050

  • CAS :

    1026075-53-5

  • Molecular Formula : C17H26N4O6S

  • Molecular Weight : 414.48

PA 20 36060

Timolol Maleate - Impurity F

4-(4-Chloro-1,2,5-thiadiazol-3-yl)morpholine


  • Catalogue No.:PA 20 36060

  • CAS :

    30165-96-9

  • Molecular Formula : C6H8ClN3OS

  • Molecular Weight : 205.67

PA 20 36070

Timolol Maleate (Potassium Salt) - Impurity G

4-(4-Morpholinyl)-1,2,5-Thiadiazol-3(2H)-one 1-Oxide Potassium Salt


  • Catalogue No.:PA 20 36070

  • CAS :

    79844-78-3

  • Molecular Formula : C6H8KN3O3S

  • Molecular Weight : 241.31

PA 20 36071

Timolol Maleate (Freebase) - Impurity G

4-(Morpholin-4-yl)-1,2,5-thiadiazol-3(2H)-one 1-oxide


  • Catalogue No.:PA 20 36071

  • CAS :

    75202-36-7

  • Molecular Formula : C6H9N3O3S

  • Molecular Weight : 203.22

PA 20 36080

Timolol Maleate - Impurity H

2-[(2RS)-3-[(1,1-Dimethylethyl)amino]-2-hydroxypropyl]-4-(morpholin-4-yl)-1,2,5-thiadiazol-3(2H)-one


  • Catalogue No.:PA 20 36080

  • CAS :

    158636-97-6

  • Molecular Formula : C13H24N4O3S

  • Molecular Weight : 316.42

PA 20 36090

Timolol Maleate - Impurity I

(2RS)-1-(Ethylamino)-3-[[4-(morpholin-4-yl)-1,2,5-thiadiazol-3-yl]oxy]propan-2-ol


  • Catalogue No.:PA 20 36090

  • CAS :

    NA

  • Molecular Formula : C11H20N4O3S

  • Molecular Weight : 288.37

PA 20 36100

Timolol Maleate - Impurity J

1,1'-[1,2,5-Thiadiazol-3,4-diylbis(oxy)]bis[3-[(1,1-dimethylethyl)amino]propan-2-ol]


  • Catalogue No.:PA 20 36100

  • CAS :

    NA

  • Molecular Formula : C16H32N4O4S

  • Molecular Weight : 376.51

PA 20 36510

N-Benzyl-tert-butylamine

N-Benzyl-tert-butylamine


  • Catalogue No.:PA 20 36510

  • CAS :

    3378-72-1

  • Molecular Formula : C11H17N

  • Molecular Weight : 163.26

PA 20 36520

(S)-2-Phenyl-3-tertbutyl-5-hydroxymethyloxazolidone

(S)-2-Phenyl-3-tertbutyl-5-hydroxymethyloxazolidone


  • Catalogue No.:PA 20 36520

  • CAS :

    NA

  • Molecular Formula : C14H19NO3

  • Molecular Weight : 249.31

PA 20 36530

(R)-4-[4-(Oxiranylmethoxy)-1,2,5-thiadiazol-3-yl]morpholine

(R)-4-[4-(Oxiranylmethoxy)-1,2,5-thiadiazol-3-yl]morpholine


  • Catalogue No.:PA 20 36530

  • CAS :

    741719-53-9

  • Molecular Formula : C9H13N3O3S

  • Molecular Weight : 243.28

PA 20 36540

(2S)-1-Chloro-3-[[4-(4-morpholinyl)-1,2,5-thiadiazol-3-yl]oxy]-2-propanol

(2S)-1-Chloro-3-[[4-(4-morpholinyl)-1,2,5-thiadiazol-3-yl]oxy]-2-propanol


  • Catalogue No.:PA 20 36540

  • CAS :

    741719-52-8

  • Molecular Formula : C9H14ClN3O3S

  • Molecular Weight : 279.74

PA 20 36550

4-(4-(((5S)-3-(tert-Butyl)-2-phenyloxazolidin-5-yl)methoxy)-1,2,5-thiadiazol-3-yl)morpholine

4-(4-(((5S)-3-(tert-Butyl)-2-phenyloxazolidin-5-yl)methoxy)-1,2,5-thiadiazol-3-yl)morpholine


  • Catalogue No.:PA 20 36550

  • CAS :

    NA

  • Molecular Formula : C20H28N4O3S

  • Molecular Weight : 404.53

PA STI 083230

rac Timolol-d5 Maleate

rac Timolol-d5 Maleate


  • Catalogue No.:PA STI 083230

  • CAS :

    1217260-21-3

  • Molecular Formula : C17H23D5N4O7S

  • Molecular Weight : 437.52

PA 20 36560

(S)-4-[4-(Oxiranylmethoxy)-1,2,5-thiadiazol-3-yl]morpholine

(S)-4-[4-(Oxiranylmethoxy)-1,2,5-thiadiazol-3-yl]morpholine


  • Catalogue No.:PA 20 36560

  • CAS :

    69500-53-4

  • Molecular Formula : C9H13N3O3S

  • Molecular Weight : 243.28

PA 20 36570

3,4-Dichloro-1,2,5-thiadiazole

3,4-Dichloro-1,2,5-thiadiazole


  • Catalogue No.:PA 20 36570

  • CAS :

    5728-20-1

  • Molecular Formula : C2Cl2N2S

  • Molecular Weight : 155

PA 20 36580

3,4-Dichloro-1,2,5-thiadiazole 1-oxide

3,4-Dichloro-1,2,5-thiadiazole 1-oxide


  • Catalogue No.:PA 20 36580

  • CAS :

    121771-55-9

  • Molecular Formula : C2Cl2N2OS

  • Molecular Weight : 171

PA 20 36590

(S)-Isotimolol

(S)-Isotimolol


  • Catalogue No.:PA 20 36590

  • CAS :

    158636-96-5

  • Molecular Formula : C13H24N4O3S

  • Molecular Weight : 316.42

PA 20 36600

(S)-N-[4-[3-[(1,1-Dimethylethyl)amino]-2-hydroxypropoxy]-1,2,5-thiadiazol-3-yl]-N-(2-hydroxyethyl)-glycine

(S)-N-[4-[3-[(1,1-Dimethylethyl)amino]-2-hydroxypropoxy]-1,2,5-thiadiazol-3-yl]-N-(2-hydroxyethyl)-glycine


  • Catalogue No.:PA 20 36600

  • CAS :

    75014-25-4

  • Molecular Formula : C13H24N4O5S

  • Molecular Weight : 348.42

PA 20 36610

(S)​-1-​[(1,​1-​Dimethylethyl)​amino]​-​3-​[[4-​[(2-​hydroxyethyl)​amino]​-​1,​2,​5-​thiadiazol-​3-​yl]​oxy]​-​2-​propanol

(S)​-1-​[(1,​1-​Dimethylethyl)​amino]​-​3-​[[4-​[(2-​hydroxyethyl)​amino]​-​1,​2,​5-​thiadiazol-​3-​yl]​oxy]​-​2-​propanol


  • Catalogue No.:PA 20 36610

  • CAS :

    75014-26-5

  • Molecular Formula : C11H22N4O3S

  • Molecular Weight : 290.38

PA 20 36620

(S)-Hydroxy Timolol

(S)-Hydroxy Timolol


  • Catalogue No.:PA 20 36620

  • CAS :

    1227468-61-2

  • Molecular Formula : C13H24N4O4S

  • Molecular Weight : 332.42

PA 20 36630

1-(tert-Butylamino)-3-((4-(2,3-dihydro-4H-1,4-oxazin-4-yl)-1,2,5-thiadiazol-3-yl)oxy)propan-2-ol

1-(tert-Butylamino)-3-((4-(2,3-dihydro-4H-1,4-oxazin-4-yl)-1,2,5-thiadiazol-3-yl)oxy)propan-2-ol


  • Catalogue No.:PA 20 36630

  • CAS :

    NA

  • Molecular Formula : C13H22N4O3S

  • Molecular Weight : 314.4

PA 20 36640

(R)-2-Hydroxy-3-((4-morpholino-1,2,5-thiadiazol-3-yl)oxy)propanoic Acid

(R)-2-Hydroxy-3-((4-morpholino-1,2,5-thiadiazol-3-yl)oxy)propanoic Acid


  • Catalogue No.:PA 20 36640

  • CAS :

    NA

  • Molecular Formula : C9H13N3O5S

  • Molecular Weight : 275.28

PA 20 0360011

Timolol Maleate - Impurity A (Maleate Salt)

(R)-Timolol Maleate


  • Catalogue No.:PA 20 0360011

  • CAS :

    26839-77-0

  • Molecular Formula : C17H28N4O7S

  • Molecular Weight : 432.49

PA 20 0360081

Timolol Maleate - Impurity H (Hydrochloride Salt)

2-[(2RS)-3-[(1,1-Dimethylethyl)amino]-2-hydroxypropyl]-4-(morpholin-4-yl)-1,2,5-thiadiazol-3(2H)-one Hydrochloride


  • Catalogue No.:PA 20 0360081

  • CAS :

    NA

  • Molecular Formula : C13H25ClN4O3S

  • Molecular Weight : 352.88

PA 20 0360051

Timolol Maleate - Impurity E (Maleate Salt)

(S,Z)-4-({1-(tert-Butylamino)-3-[(4-morpholino-1,2,5-thiadiazol-3-yl)oxy]propan-2-yl}oxy)-4-oxobut-2-enoic Acid Maleate Salt (1:1)


  • Catalogue No.:PA 20 0360051

  • CAS :

    NA

  • Molecular Formula : C21H30N4O10S

  • Molecular Weight : 530.55