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Impurities

SynThink is a trusted producer and supplier of Pharmaceutical Reference Standards, including Impurity Standards. These materials are essential for pharmaceutical companies conducting research into the quality, stability, and biological safety of drug products. We maintain a robust inventory of API impurities, ready to support your development and regulatory needs.

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1190987-12-2

,

Tetrahydrothiazolopyridine-2-carboxylic acid | CAS : 1190987-12-2
Please enquire for price & pack size
In Stock

CAS No.

: 1190987-12-2

Mol F.

: C7H8N2O2S

Mol W.

: 184.2

Cat No.

: SA33055

105186-35-4

,

Tibolone EP impurity A
$400.00 25 mg
In Stock

CAS No.

: 105186-35-4

Mol F.

: C21H28O3

Mol W.

: 328.45

Cat No.

: SA21900

105186-34-3

,

Tibolone EP impurity B
$400.00 25 mg
In Stock

CAS No.

: 105186-34-3

Mol F.

: C21H28O4

Mol W.

: 344.45

Cat No.

: SA21901

1162-60-3

,

Tibolone EP impurity C
$400.00 25 mg
In Stock

CAS No.

: 1162-60-3

Mol F.

: C21H28O2

Mol W.

: 312.45

Cat No.

: SA21902

105186-33-2

,

Tibolone EP impurity E
$100.00 25 mg
In Stock

CAS No.

: 105186-33-2

Mol F.

: C23H34O3

Mol W.

: 358.52

Cat No.

: SA21904

274693-27-5

,

Ticagrelor
Please enquire for price & pack size
In Stock

CAS No.

: 274693-27-5

Mol F.

: C23H28F2N6O4S

Mol W.

: 522.57

Cat No.

: SA32500

376608-71-8

,

Ticagrelor Impurity E (Mandelate salt)
Please enquire for price & pack size
In Stock

CAS No.

: 376608-71-8

Mol F.

: C17H17F2NO3

Mol W.

: 321.32

Cat No.

: SA32527

274693-39-9

,

Ticagrelor Sulfone Impurity; Ticagrelor Impurity M
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In Stock

CAS No.

: 274693-39-9

Mol F.

: C23H28F2N6O6S

Mol W.

: 554.57

Cat No.

: SA32525

1644461-85-7

,

Ticagrelor Sulfoxide
Please enquire for price & pack size
In Stock

CAS No.

: 1644461-85-7

Mol F.

: C23H28F2N6O5S

Mol W.

: 538.57

Cat No.

: SA32506

26839-76-9 (Free Base); 26839-77-0

,

Timolol EP Impurity A
$350.00 25 mg
In Stock

CAS No.

: 26839-76-9 (Free Base); 26839-77-0

Mol F.

: C13H24N4O3S

Mol W.

: 316.42

Cat No.

: SA23200

59697-06-2

,

Timolol EP Impurity B
$380.00 25 mg
In Stock

CAS No.

: 59697-06-2

Mol F.

: C13H24N4O3S

Mol W.

: 316.42

Cat No.

: SA23201

610271-56-2; 610271-57-3

,

Timolol EP Impurity C
$490.00 25 mg
In Stock

CAS No.

: 610271-56-2; 610271-57-3

Mol F.

: C19H31N7O4S2

Mol W.

: 485.62

Cat No.

: SA23202

30165-97-0

,

Timolol EP Impurity D
$150.00 25 mg
In Stock

CAS No.

: 30165-97-0

Mol F.

: C6H9N3O2S

Mol W.

: 187.22

Cat No.

: SA23203

1026075-53-5

,

Timolol EP Impurity E
$650.00 25 mg
In Stock

CAS No.

: 1026075-53-5

Mol F.

: C17H26N4O6S

Mol W.

: 414.48

Cat No.

: SA23204

30165-96-9

,

Timolol EP Impurity F
$80.00 25 mg
In Stock

CAS No.

: 30165-96-9

Mol F.

: C6H8ClN3OS

Mol W.

: 205.67

Cat No.

: SA23205

75202-36-7

,

Timolol EP Impurity G
$450.00 25 mg
In Stock

CAS No.

: 75202-36-7

Mol F.

: C6H9N3O3S

Mol W.

: 203.22

Cat No.

: SA23206

158636-97-6

,

Timolol EP Impurity H
$750.00 25 mg
In Stock

CAS No.

: 158636-97-6

Mol F.

: C13H24N4O3S

Mol W.

: 316.42

Cat No.

: SA23207

2469037-77-0

,

Timolol EP Impurity I
$350.00 25 mg
In Stock

CAS No.

: 2469037-77-0

Mol F.

: C11H20N4O3S

Mol W.

: 288.37

Cat No.

: SA23208

26921-17-5

,

Timolol Maleate
$100.00 25 mg
In Stock

CAS No.

: 26921-17-5

Mol F.

: C17H28N4O7S

Mol W.

: 432.49

Cat No.

: SA23210

SA23223

, ,

Timolol Nitrosamine
$155.00 25 mg
In Stock

CAS No.

Mol F.

: C13H23N5O4S

Mol W.

: 345.42

Cat No.

: SA23223

136310-95-7

,

Tiotropium Bromide EP Impurity C
$195.00 25 mg
In Stock

CAS No.

: 136310-95-7

Mol F.

: C19H22NBrO3S2

Mol W.

: 456.42

Cat No.

: SA11703

136310-64-0

,

Tiotropium EP Impurity B
$100.00 25 mg
In Stock

CAS No.

: 136310-64-0

Mol F.

: C18H19NO4S2

Mol W.

: 377.48

Cat No.

: SA11702

136310-66-2

,

Tiotropium EP Impurity D
$150.00 25 mg
In Stock

CAS No.

: 136310-66-2

Mol F.

: C18H19NO3S2

Mol W.

: 361.48

Cat No.

: SA11704

26447-85-8

,

Tiotropium EP Impurity E
$80.00 25 mg
In Stock

CAS No.

: 26447-85-8

Mol F.

: C11H10O3S2

Mol W.

: 254.33

Cat No.

: SA11705

704-38-1

,

Tiotropium EP Impurity F
$70.00 25 mg
In Stock

CAS No.

: 704-38-1

Mol F.

: C9H6OS2

Mol W.

: 194.27

Cat No.

: SA11706

1508-46-9

,

Tiotropium EP Impurity G
$195.00 25 mg
In Stock

CAS No.

: 1508-46-9

Mol F.

: C9H16NBrO2

Mol W.

: 250.13

Cat No.

: SA11707

845870-40-8

,

Tiotropium EP Impurity H
$195.00 25 mg
In Stock

CAS No.

: 845870-40-8

Mol F.

: C9H16BrNO2

Mol W.

: 250.13

Cat No.

: SA11708

136521-48-7

,

Tiotropium EP Impurity I
$750.00 25 mg
In Stock

CAS No.

: 136521-48-7

Mol F.

: C19H22BrNO4S2

Mol W.

: 472.42

Cat No.

: SA11709

SA11711

,

Tiotropium EP Impurity K
$350.00 25 mg
In Stock

CAS No.

Mol F.

: C19H19NO5S2

Mol W.

: 405.49

Cat No.

: SA11711

SA11710

,

Tiotropium Impurity J Iodo
$950.00 25 mg
In Stock

CAS No.

Mol F.

: C19H22ClNO3IS2

Mol W.

: 537.87

Cat No.

: SA11710

736108-96-6

,

Tiotropium Impurity M
$695.00 25 mg
In Stock

CAS No.

: 736108-96-6

Mol F.

: C18H19NO3S2

Mol W.

: 377.5

Cat No.

: SA11721

SA11724

,

Tiotropium Impurity N
Please enquire for price & pack size
In Stock

CAS No.

Mol F.

: C19H22NO4S2

Mol W.

: 392.5

Cat No.

: SA11724

1092578-47-6 (base); 2174011-55-1 (citrate salt)

,

Tofacitinib (3S,4S)-Isomer
$775.00 25 mg
In Stock

CAS No.

: 1092578-47-6 (base); 2174011-55-1 (citrate salt)

Mol F.

: C16H20N6O (base)

Mol W.

: 312.37

Cat No.

: SA43302

477600-74-1 (Base); 1260590-51-9 (HCl); 1655430-59-3 (2HCl)

,

Tofacitinib Amine impurity
$125.00 25 mg
In Stock

CAS No.

: 477600-74-1 (Base); 1260590-51-9 (HCl); 1655430-59-3 (2HCl)

Mol F.

: C13H19N5

Mol W.

: 245.32

Cat No.

: SA43306

477600-73-0

,

Tofacitinib Benzyl Impurity
$90.00 25 mg
In Stock

CAS No.

: 477600-73-0

Mol F.

: C20H25N5

Mol W.

: 335.45

Cat No.

: SA43303

540737-29-9

,

Tofacitinib Citrate
Please enquire for price & pack size
In Stock

CAS No.

: 540737-29-9

Mol F.

: C22H28N6O8

Mol W.

: 504.49

Cat No.

: SA43301

SA43325

,

Tofacitinib Diastereomer Impurity
Please enquire for price & pack size
In Stock

CAS No.

Mol F.

: C22H28N6O8

Mol W.

: 504.49

Cat No.

: SA43325

1640972-35-5

,

Tofacitinib Dihydro Impurity
Please enquire for price & pack size
In Stock

CAS No.

: 1640972-35-5

Mol F.

: C16H22N6O

Mol W.

: 314.39

Cat No.

: SA43305

2328165-36-0

,

Tofacitinib Impurity K
Please enquire for price & pack size
In Stock

CAS No.

: 2328165-36-0

Mol F.

: C16H21N5O3

Mol W.

: 331.4

Cat No.

: SA43314

1675248-19-7

,

Tofacitinib impurity L
$245.00 25 mg
In Stock

CAS No.

: 1675248-19-7

Mol F.

: C16H22N6O2

Mol W.

: 330.38

Cat No.

: SA43315

923036-30-0

,

Tofacitinib Impurity S
$175.00 25 mg
In Stock

CAS No.

: 923036-30-0

Mol F.

: C27H31N5O2S

Mol W.

: 489.6

Cat No.

: SA43317

SA43322

, ,

Tofacitinib N-Nitroso Impurity 1
Please enquire for price & pack size
In Stock

CAS No.

Mol F.

: C16H19N7O2

Mol W.

: 341.37

Cat No.

: SA43322

SA43324

, ,

Tofacitinib N-Nitroso Impurity 3
$225.00 25 mg
In Stock

CAS No.

Mol F.

: C13H18N6O2

Mol W.

: 274.32

Cat No.

: SA43324

1640971-60-3

,

Tofacitinib Related Compound 11
$245.00 25 mg
In Stock

CAS No.

: 1640971-60-3

Mol F.

: C14H20N6O

Mol W.

: 288.4

Cat No.

: SA43319

93940-19-3

,

Tranexamic Acid EP Impurity A
$495.00 25 mg
In Stock

CAS No.

: 93940-19-3

Mol F.

: C16H27NO4

Mol W.

: 297.39

Cat No.

: SA17401

82755-59-7

,

Tranexamic Acid EP Impurity E
$195.00 25 mg
In Stock

CAS No.

: 82755-59-7

Mol F.

: C16H28N2O3

Mol W.

: 296.41

Cat No.

: SA17405

1599413-49-6

,

Tranexamic Acid EP Impurity F
$195.00 25 mg
In Stock

CAS No.

: 1599413-49-6

Mol F.

: C9H15NO3

Mol W.

: 185.22

Cat No.

: SA17406

116857-05-7

,

Trans-4,5-Dichloro-4,5-dimethyl-1,3-dioxolan-2-one
$95.00 25 mg
In Stock

CAS No.

: 116857-05-7

Mol F.

: C5H6Cl2O3

Mol W.

: 185.01

Cat No.

: SA17701

134924-71-3

,

trans-Hydroxy Praziquantel
$120.00 25 mg
In Stock

CAS No.

: 134924-71-3

Mol F.

: C19H24N2O3

Mol W.

: 328.41

Cat No.

: SA13906

61949-77-7

,

trans-Permethrin | CAS : 61949-77-7
Please enquire for price & pack size
In Stock

CAS No.

: 61949-77-7

Mol F.

: C21H20Cl2O3

Mol W.

: 391.29

Cat No.

: SA51901

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