Home / Products / Impurities

Impurities

SynThink is a producer and supplier of a number of pharmaceutical Reference Standards (Impurity Standards) which are required for pharmaceutical companies to study quality, stability and biological safety of pharmaceutical products. Many API Impurities are available in our stock.

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

Impurities, Rosuvastatin

Rosuvastatin (3S,5S)-Isomer Methyl Ester

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C23H30FN3O6S

Mol W.

: 495.56

Cat No.

: SA121106

Impurities, Rosuvastatin

Rosuvastatin (3S,5S)-Isomer Methyl Ester

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C23H30FN3O6S

Mol W.

: 495.56

Cat No.

: SA121105

Impurities, Rosuvastatin

Rosuvastatin (3S,5S)-Isomer t-Butyl Ester

$1,150.00 25 mg

Out of Stock

CAS No.

: 2185805-16-5

Mol F.

: C26H36FN3O6S

Mol W.

: 537.64

Cat No.

: SA12171

Impurities, Rosuvastatin

Rosuvastatin (6R)-Anhydro Lactone Impurity

$650.00 25 mg

Out of Stock

CAS No.

: 2514682-15-4

Mol F.

: C22H24FN3O4S

Mol W.

: 445.51

Cat No.

: SA12169

Impurities, Rosuvastatin

Rosuvastatin (6R)-Isomer Methyl Ester

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C23H30FN3O6S

Mol W.

: 495.56

Cat No.

: SA12179

Impurities, Rosuvastatin

Rosuvastatin (6R)-Isomer Methyl Ester

$1,550.00 100 mg

Out of Stock

CAS No.

Mol F.

: C23H30FN3O6S

Mol W.

: 495.56

Cat No.

: SA121107

Impurities, Rosuvastatin

Rosuvastatin (6S)-Anhydro Lactone Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 2514963-93-8

Mol F.

: C22H24FN3O4S

Mol W.

: 445.51

Cat No.

: SA12181

Impurities, Rosuvastatin

Rosuvastatin (6S)-Isomer Methyl Ester

$1,549.00 100 mg

Out of Stock

CAS No.

Mol F.

: C23H30FN3O6S

Mol W.

: 495.56

Cat No.

: SA121108

Impurities, Rosuvastatin

Rosuvastatin 2,3-Anhydro Acid Ethyl Ester

Please enquire for price & pack size

Out of Stock

CAS No.

: 2452383-23-0

Mol F.

: C24H30FN3O5S

Mol W.

: 491.59

Cat No.

: SA12184

Impurities, Rosuvastatin

Rosuvastatin 2,3,4,5-Dianhydro Acid Ethyl Ester

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C24H28FN3O4S

Mol W.

: 473.17

Cat No.

: SA12183

Impurities, Rosuvastatin

Rosuvastatin 3-Oxo Acid Ethyl Ester

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C24H30FN3O6S

Mol W.

: 507.57

Cat No.

: SA12185

Impurities, Rosuvastatin

Rosuvastatin 3-Oxo Acid Sodium Salt

Please enquire for price & pack size

Out of Stock

CAS No.

: 1346747-49-6

Mol F.

: C22H26FN3NaO6S

Mol W.

: 501.51

Cat No.

: SA12146

Impurities, Rosuvastatin

Rosuvastatin 4,5-Anhydro Acid Calcium Salt

$1,550.00 25 mg

Out of Stock

CAS No.

: 1346606-44-7(Acid)

Mol F.

: C22H25FN3O5S.1/2Ca

Mol W.

: 482.51

Cat No.

: SA12124

Impurities, Rosuvastatin

Rosuvastatin 5-Oxo Acid Ethyl Ester

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C24H30FN3O6OS

Mol W.

: 507.57

Cat No.

: SA12186

Impurities, Rosuvastatin

Rosuvastatin acetonide N,N’-dimethy amide

$450.00 25 mg

Out of Stock

CAS No.

Mol F.

: C27H37FN4O5S

Mol W.

: 548.67

Cat No.

: SA12199

Impurities, Rosuvastatin

Rosuvastatin Allyl Ester

$150.00 25 mg

Out of Stock

CAS No.

: 1352945-05-1

Mol F.

: C25H32FN3O6S

Mol W.

: 521.6

Cat No.

: SA12114

Impurities, Rosuvastatin

Rosuvastatin Calcium Salt

$100.00 25 mg

Out of Stock

CAS No.

: 147098-20-2

Mol F.

: C22H27FN3O6S.1/2Ca

Mol W.

: 500.57

Cat No.

: SA12113

Impurities, Rosuvastatin

Rosuvastatin D-5 Diastereomer Impurity

$200.00 25 mg

Out of Stock

CAS No.

: 1025085-36-2

Mol F.

: C15H26O6

Mol W.

: 302.36

Cat No.

: SA121104

Impurities, Rosuvastatin

Rosuvastatin Desfluoride Impurity (RRT 0.87)

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C15H18N2O3

Mol W.

: 274.32

Cat No.

: SA121135

Impurities, Rosuvastatin

Rosuvastatin EP Impurity A T-Butyl Ester

$450.00 25 mg

Out of Stock

CAS No.

: 1714147-49-5

Mol F.

: C29H42FN3O7S

Mol W.

: 595.72

Cat No.

: SA12137

Impurities, Rosuvastatin

Rosuvastatin EP Impurity N

Please enquire for price & pack size

Out of Stock

CAS No.

: 2290571-51-4

Mol F.

: C22H26FN3O5S

Mol W.

: 463.52

Cat No.

: SA121117

Impurities, Rosuvastatin

Rosuvastatin Impurity SA12159

$350.00 25 mg

Out of Stock

CAS No.

Mol F.

: C22H26FN3O5S

Mol W.

: 463.52

Cat No.

: SA12159

Impurities, Rosuvastatin

Rosuvastatin impurity-9

Please enquire for price & pack size

Out of Stock

CAS No.

: 2095786-11-9

Mol F.

: C13H22O6

Mol W.

: 274.31

Cat No.

: SA121109

Impurities, Rosuvastatin

Rosuvastatin Sodium (3S,5S)-Isomer

$950.00 25 mg

Out of Stock

CAS No.

Mol F.

: C22H27FN3NaO6S

Mol W.

: 503.52

Cat No.

: SA12178

Impurities, Rosuvastatin

Rosuvastatin tert-Butyl Ester

$750.00 25 mg

Out of Stock

CAS No.

: 1283766-30-2

Mol F.

: C24H34FN3O6S

Mol W.

: 523.62

Cat No.

: SA12120

Impurities, Rosuvastatin

Rosuvastatin Triphenylphosphonium Bromide

$80.00 25 mg

Out of Stock

CAS No.

: 885477-83-8

Mol F.

: C34H34BrFN3O2PS

Mol W.

: 678.59

Cat No.

: SA12118

Edoxaban, Impurities

RSR Boc-Cyclohexyl Diastereomer of Edoxaban

Please enquire for price & pack size

Out of Stock

CAS No.

: 2081883-57-8

Mol F.

: C14H27N3O3

Mol W.

: 285.39

Cat No.

: SA33020

Edoxaban, Impurities

RSS-Edoxaban

Please enquire for price & pack size

Out of Stock

CAS No.

: 1255529-25-9

Mol F.

: C24H32ClN7O4S

Mol W.

: 550.07

Cat No.

: SA33005

Impurities, Ruxolitinib

Ruxolitinib M18 metabolite impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1315607-85-2

Mol F.

: C17H18N6O

Mol W.

: 322.36

Cat No.

: SA43404

Impurities, Ruxolitinib

Ruxolitinib N-oxide 1

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C17H18N6O

Mol W.

: 322.37

Cat No.

: SA43401

Impurities, Ruxolitinib

Ruxolitinib N-oxide 2

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C17H18N6O

Mol W.

: 322.37

Cat No.

: SA43402

Impurities, Nicotine

S-(-)-Nicotine Ditartrate Dihydrate

Please enquire for price & pack size

Out of Stock

CAS No.

: 6019-06-3

Mol F.

: C₁₀H₁₄N₂•2(C₄H₆O₆)•2(H₂O)

Mol W.

: 498.44

Cat No.

: SA32208

Impurities, Manidipine

S-(+)-Manidipine

Please enquire for price & pack size

Out of Stock

CAS No.

: 126451-47-6

Mol F.

: C₃₅H₃₈N₄O₆

Mol W.

: 610.7

Cat No.

: SA29803

Fulvestrant, Impurities

S-Deoxo ∆6-Fulvestrant; Delta (6,7) Deoxo Fulvestrant Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 2170200-16-3

Mol F.

: C32H45F5O2S

Mol W.

: 588.76

Cat No.

: SA11806

Fulvestrant, Impurities

S-Deoxo-3,17β-bis-(O-tetrahydro-2H-pyran-2-yl)-6-oxo-fulvestrant

Please enquire for price & pack size

Out of Stock

CAS No.

: 862700-70-7

Mol F.

: C42H61F5O5S

Mol W.

: 772.99

Cat No.

: SA11808

Impurities, Topiramate

S-Hydroxy Topiramate

Please enquire for price & pack size

Out of Stock

CAS No.

: 198215-62-2

Mol F.

: C12H21NO9S

Mol W.

: 355.36

Cat No.

: SA45514

19-Norandrostenedione, Impurities

SA15803

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

Mol W.

Cat No.

: SA15803

Impurities, Sacubitril

Sacubitril (3R,5S)-Pyrrolidinone Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1038924-70-7

Mol F.

: CˆH‰NO

Mol W.

: 265.35

Cat No.

: SA40906

Impurities, Sacubitril

Sacubitril (3S,5S)-Pyrrolidinone Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1038925-00-6

Mol F.

: CˆH‰NO

Mol W.

: 265.35

Cat No.

: SA40907

Impurities, Sacubitril

Sacubitril 2,5-Dioxopyrrolidine

Please enquire for price & pack size

Out of Stock

CAS No.

: 1038924-97-8

Mol F.

: C24H27NO4

Mol W.

: 393.48

Cat No.

: SA40902

Impurities, Sacubitril

Sacubitril Desethyl Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 149709-44-4

Mol F.

: C22H25NO5

Mol W.

: 383.44

Cat No.

: SA40901

Impurities, Sacubitril

Sacubitril Desethyl N-Boc Enamine Impurity | CAS : 1012341-48-8

Please enquire for price & pack size

Out of Stock

CAS No.

: 1012341-48-8

Mol F.

: C23H27NO4

Mol W.

: 381.46

Cat No.

: SA40912

Impurities, Sacubitril

Sacubitril Lactam Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1038925-22-2

Mol F.

: C18H19NO

Mol W.

: 265.36

Cat No.

: SA40910

Impurities, Sacubitril

Sacubitril Maleic acid Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 2984580-03-0

Mol F.

: C24H27NO5

Mol W.

: 409.47

Cat No.

: SA40909

Impurities, Salbutamol

Salbutamol EP Impurity A; Albuterol Methyl Ether

Please enquire for price & pack size

Out of Stock

CAS No.

: 870076-72-5

Mol F.

: C14H23NO3

Mol W.

: 253.34

Cat No.

: SA26000

Impurities, Salbutamol

Salbutamol EP Impurity G

Please enquire for price & pack size

Out of Stock

CAS No.

: 64092-10-0;24085-08-3(HClsalt)

Mol F.

: C20H25NO3

Mol W.

: 327.42

Cat No.

: SA26006

Impurities, Salbutamol

Salbutamol EP Impurity H

Please enquire for price & pack size

Out of Stock

CAS No.

: 132183-64-3

Mol F.

: C13H21NO

Mol W.

: 207.31

Cat No.

: SA26007

Impurities, Salbutamol

Salbutamol EP Impurity K

Please enquire for price & pack size

Out of Stock

CAS No.

: 898542-80-8

Mol F.

: C13H18ClNO3

Mol W.

: 271.74

Cat No.

: SA26010

Impurities, Salbutamol

Salbutamol EP Impurity L

Please enquire for price & pack size

Out of Stock

CAS No.

: 898542-81-9

Mol F.

: C13H20ClNO3

Mol W.

: 273.76

Cat No.

: SA26011

Impurities, Salbutamol

Salbutamol Impurity P

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C22H31NO6

Mol W.

: 405.48

Cat No.

: SA26017