Theophylline

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Pharmaceutical Reference Standards

Theophylline

CAT. No.	CP-T59000
CAS. No.	58-55-9
Mol. F.	C7H8N4O2
Mol. Wt.	180.16
Stock Status:	In Stock

7-methylxanthine

CAT. No.	CP-T59001
CAS. No.	552-62-5
Mol. F.	C6H6N4O2
Mol. Wt.	166.14
Stock Status:	In Stock

Theophylline EP Impurity A

CAT. No.	CP-T59002
CAS. No.	58-08-2
Mol. F.	C8H10N4O2
Mol. Wt.	194.19
Stock Status:	In Stock

Theophylline EP Impurity D

CAT. No.	CP-T59004
CAS. No.	6736-40-9
Mol. F.	C6 H10 N4 O
Mol. Wt.	154.17
Stock Status:	In Stock

Theophylline EP Impurity E

CAT. No.	CP-T59005
CAS. No.	944-73-0
Mol. F.	C7H8N4O3
Mol. Wt.	196.17
Stock Status:	Custom Synthesis

N-Nitroso Theophylline EP Impurity C

CAT. No.	CP-T59006
CAS. No.	NA
Mol. F.	C7H9N5O4
Mol. Wt.	227.18
Stock Status:	Please Enquire

N-Nitroso Theophylline EP Impurity D

CAT. No.	CP-T59007
CAS. No.	NA
Mol. F.	C6H9N5O2
Mol. Wt.	183.17
Stock Status:	Please Enquire

N-Nitroso-8-Chlorotheophylline

CAT. No.	CP-T59008
CAS. No.	NA
Mol. F.	C7H6ClN5O3
Mol. Wt.	243.61
Stock Status:	Please Enquire

N-Nitroso Theophylline

CAT. No.	CP-T59009
CAS. No.	NA
Mol. F.	C7H7N5O3
Mol. Wt.	209.2
Stock Status:	Please Enquire

Etofyllin

CAT. No.	CP-T59010
CAS. No.	519-37-9
Mol. F.	C9H12N4O3
Mol. Wt.	224.22
Stock Status:	Custom Synthesis

Theophylline 7-Acetic Acid

CAT. No.	CP-T59011
CAS. No.	652-37-9
Mol. F.	C9H10N4O4
Mol. Wt.	238.2
Stock Status:	Custom Synthesis

8-Chlorotheophylline

CAT. No.	CP-T59012
CAS. No.	85-18-7
Mol. F.	C7H7ClN4O2
Mol. Wt.	214.61
Stock Status:	Custom Synthesis

8-Benzyl Theophylline

CAT. No.	CP-T59013
CAS. No.	2879-15-4
Mol. F.	C14H14N4O2
Mol. Wt.	270.29
Stock Status:	Custom Synthesis

Theophylline-7-Acetaldehyde

CAT. No.	CP-T59014
CAS. No.	5614-53-9
Mol. F.	C9H10N4O3
Mol. Wt.	222.2
Stock Status:	Custom Synthesis

Theophylline Impurity 4

CAT. No.	CP-T59015
CAS. No.	1174289-18-9
Mol. F.	C11H14N4O4
Mol. Wt.	266.26
Stock Status:	Custom Synthesis

Theophylline Impurity 6

CAT. No.	CP-T59016
CAS. No.	81781-90-0
Mol. F.	C16H17ClN4O2
Mol. Wt.	332.79
Stock Status:	Custom Synthesis

Theophylline Impurity 7

CAT. No.	CP-T59017
CAS. No.	60797-68-4
Mol. F.	C7H10N4O3
Mol. Wt.	198.18
Stock Status:	Custom Synthesis

Theophylline Impurity 8

CAT. No.	CP-T59018
CAS. No.	5309-70-6
Mol. F.	C4H5BrO2
Mol. Wt.	164.99
Stock Status:	Custom Synthesis

1-Bromoethyl Acetate

CAT. No.	CP-T59019
CAS. No.	40258-78-4
Mol. F.	C4H7BrO2
Mol. Wt.	167
Stock Status:	Custom Synthesis

1,2-Dibromoethyl Acetate

CAT. No.	CP-T59020
CAS. No.	24442-57-7
Mol. F.	C4H6Br2O2
Mol. Wt.	245.9
Stock Status:	Custom Synthesis

Theophylline Impurity 13

CAT. No.	CP-T59021
CAS. No.	427895-68-9
Mol. F.	C7H10N4O2
Mol. Wt.	182.18
Stock Status:	Custom Synthesis

Theophylline Hydrochloride Monohydrate

CAT. No.	CP-T59022
CAS. No.	1604876-32-5
Mol. F.	C7H8N4O2 : HCl : H2O
Mol. Wt.	180.17 : 36.46 : 18.02
Stock Status:	Custom Synthesis

Rel. Cas No: 58-55-9 (free base) ; 3485-82-3 (Na salt) ; 5967-84-0 (hydrate salt) ; 57533-87-6 (K salt) ; 37611-63-5 (HCl salt)

Theophylline Impurity 18

CAT. No.	CP-T59023
CAS. No.	39726-70-0
Mol. F.	C17H20N8O5
Mol. Wt.	416.4
Stock Status:	Custom Synthesis

Theophylline Impurity 20

CAT. No.	CP-T59024
CAS. No.	NA
Mol. F.	C13H16N4O6
Mol. Wt.	324.29
Stock Status:	Custom Synthesis

a b c d e f g h i j k l m n o p q r s t u v w x y z

Theophylline

Pharmaceutical Reference Standards

Theophylline

7-methylxanthine

Theophylline EP Impurity A

Theophylline EP Impurity D

Theophylline EP Impurity E

N-Nitroso Theophylline EP Impurity C

N-Nitroso Theophylline EP Impurity D

N-Nitroso-8-Chlorotheophylline

N-Nitroso Theophylline

Etofyllin

Theophylline 7-Acetic Acid

8-Chlorotheophylline

8-Benzyl Theophylline

Theophylline-7-Acetaldehyde

Theophylline Impurity 4

Theophylline Impurity 6

Theophylline Impurity 7

Theophylline Impurity 8

1-Bromoethyl Acetate

1,2-Dibromoethyl Acetate

Theophylline Impurity 13

Theophylline Hydrochloride Monohydrate

Theophylline Impurity 18

Theophylline Impurity 20

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International