Home / Products / Impurities

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.

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

Bromhexine, Impurities

Bromhexine EP Impurity B

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 50910-55-9

Mol F.

: C7H5Br2NO

Mol W.

: 278.93

Cat No.

: SA28402

Bromhexine, Impurities

Bromhexine EP Impurity C

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 57365-08-9

Mol F.

: C14H22N2

Mol W.

: 218.34

Cat No.

: SA28403

Bromhexine, Impurities

Bromhexine EP Impurity E

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 1661064-00-1(Base);1660957-93-6(Chloride)

Mol F.

: C15H21Br2N2

Mol W.

: 389.15

Cat No.

: SA28405

Bromhexine, Impurities

Bromhexine N-Oxide

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: NA

Mol F.

: C14H20Br2N2O

Mol W.

: 392.13

Cat No.

: SA28406

Apixaban, Impurities

Bromo Nitro Ethyl Ester Apixaban Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: NA

Mol F.

: C22H17BrN4O6

Mol W.

: 513.3

Cat No.

: SA39914

Budesonide, Impurities

Budesonide 17-Keto 11-β-16-α-diol Impurity

$395.00 25 mg

PLEASE ENQUIRE

CAS No.

: 910299-74-0

Mol F.

: C19H24O4

Mol W.

: 316.39

Cat No.

: SA14113

Budesonide, Impurities

Budesonide 17,21-Diacetyloxy Impurity

$155.00 25 mg

PLEASE ENQUIRE

CAS No.

: 17652-24-3

Mol F.

: C25H32O7

Mol W.

: 444.52

Cat No.

: SA14127

Budesonide, Impurities

Budesonide 21-carboxylic acid Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

Mol F.

: C25H32O7

Mol W.

: 444.53

Cat No.

: SA14122

Budesonide, Impurities

Budesonide 21-Sulfate

$175.00 25 mg

PLEASE ENQUIRE

CAS No.

: 1436796-04-1

Mol F.

: C25H34O9S

Mol W.

: 510.6

Cat No.

: SA14107

Budesonide, Impurities

Budesonide 6-α-Hydroxy Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 577777-51-6

Mol F.

: C25H34O7

Mol W.

: 446.53

Cat No.

: SA14116

Budesonide, Impurities

Budesonide 6-β-Hydroxy Impurity

$495.00 25 mg

PLEASE ENQUIRE

CAS No.

: 88411-77-2

Mol F.

: C25H34O7

Mol W.

: 446.53

Cat No.

: SA14117

Bumetanide, Impurities

Bumetanide

$100.00 25 mg

PLEASE ENQUIRE

CAS No.

: 28395-03-1

Mol F.

: C17H20N2O5S

Mol W.

: 364.42

Cat No.

: SA24404

Bupropion, Impurities

Bupropion Hydrochloride

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 31677-93-7

Mol F.

: C₁₃H₁₉Cl₂NO

Mol W.

: 276.2

Cat No.

: SA12221

Bupropion, Impurities

Bupropion hydrochloride API

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 34841-39-9

Mol F.

: C13H18ClNO

Mol W.

: 239.74

Cat No.

: SA12236

Bupropion, Impurities

Bupropion Hydroxy Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 92264-81-8

Mol F.

: C13H18ClNO2

Mol W.

: 255.74

Cat No.

: SA12237

Buspirone, Impurities

Buspirone 5-Hydroxy Metabolite

$1,550.00 25 mg

PLEASE ENQUIRE

CAS No.

: 105496-33-1

Mol F.

: C21H31N5O3

Mol W.

: 401.5

Cat No.

: SA25814

Buspirone, Impurities

Buspirone 6-Hydroxy Metabolite

$1,550.00 25 mg

PLEASE ENQUIRE

CAS No.

: 125481-61-0

Mol F.

: C21H31N5O3

Mol W.

: 401.5

Cat No.

: SA25815

Buspirone, Impurities

Buspirone EP Impurity B

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 81461-73-6

Mol F.

: C12H19BrN4

Mol W.

: 299.21

Cat No.

: SA25801

Buspirone, Impurities

Buspirone EP Impurity F

$295.00 25 mg

PLEASE ENQUIRE

CAS No.

: 2512210-24-9

Mol F.

: C33H51N9O3

Mol W.

: 621.82

Cat No.

: SA25805

Buspirone, Impurities

Buspirone EP Impurity I

$350.00 25 mg

PLEASE ENQUIRE

CAS No.

: 2725354-99-2

Mol F.

: C21H30ClN5O2

Mol W.

: 419.95

Cat No.

: SA25808

Impurities, Sitagliptin

butyl 4-hydroxy-3,5-bis(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)benzoate

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

Mol F.

: C23H24F6N8O3

Mol W.

: 574.48

Cat No.

: SA10458

Cabozantinib, Impurities

Cabozantinib (S) Malate | CAS : 1140909-48-3

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 1140909-48-3

Mol F.

: C32H30FN3O10

Mol W.

: 635.59

Cat No.

: SA52517

Cabozantinib, Impurities

Cabozantinib 2-Fluoro Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: NA

Mol F.

: C28H24FN3O5

Mol W.

: 501.5

Cat No.

: SA52501

Cabozantinib, Impurities

Cabozantinib 2-fluorophenyl amide Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 918642-61-2

Mol F.

: C11H10FNO3

Mol W.

: 223.2

Cat No.

: SA52522

Cabozantinib, Impurities

Cabozantinib 3-Fluoro Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: NA

Mol F.

: C28H24FN3O5

Mol W.

: 501.5

Cat No.

: SA52502

Cabozantinib, Impurities

Cabozantinib 3-fluorophenyl amide Impurity | CAS : 1247859-37-5

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 1247859-37-5

Mol F.

: C11H10FNO3

Mol W.

: 223.2

Cat No.

: SA52523

Cabozantinib, Impurities

Cabozantinib 4-Chlorophenyl Analog

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: NA

Mol F.

: C28H24ClN3O5

Mol W.

: 518.0

Cat No.

: SA52515

Cabozantinib, Impurities

Cabozantinib 4-fluorophenyl amide Impurity | CAS : 1345847-71-3

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 1345847-71-3

Mol F.

: C12H12FNO3

Mol W.

: 237.2

Cat No.

: SA52520

Cabozantinib, Impurities

Cabozantinib 4-fluorophenyl oxalamide Dimer Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 10197-51-0

Mol F.

: C14H10F2N2O2

Mol W.

: 276.2

Cat No.

: SA52521

Cabozantinib, Impurities

Cabozantinib 4-nitrophenoxy Impurity | CAS : 190728-24-6

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 190728-24-6

Mol F.

: C17H14N2O5

Mol W.

: 326.3

Cat No.

: SA52510

Cabozantinib, Impurities

Cabozantinib 6-hydroxy Impurity | CAS : 1628530-47-1

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 1628530-47-1

Mol F.

: C27H22FN3O5

Mol W.

: 487.5

Cat No.

: SA52506

Cabozantinib, Impurities

Cabozantinib 7-hydroxy Impurity | CAS : 1628530-42-6

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 1628530-42-6

Mol F.

: C27H22FN3O5

Mol W.

: 487.5

Cat No.

: SA52505

Cabozantinib, Impurities

Cabozantinib API | CAS : 849217-68-1

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 849217-68-1

Mol F.

: C28H24FN3O5

Mol W.

: 501.5

Cat No.

: SA52500

Cabozantinib, Impurities

Cabozantinib Bis(4-fluorophenyl) dicarboxamide Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 1431468-36-8

Mol F.

: C17H14F2N2O2

Mol W.

: 316.3

Cat No.

: SA52511

Cabozantinib, Impurities

Cabozantinib Carboxylic Acid Impurity | CAS : 849217-77-2

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 849217-77-2

Mol F.

: C22H20N2O6

Mol W.

: 408.4

Cat No.

: SA52504

Cabozantinib, Impurities

Cabozantinib Chloro Impurity | CAS : 35654-56-9

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 35654-56-9

Mol F.

: C11H10ClNO2

Mol W.

: 223.7

Cat No.

: SA52524

Cabozantinib, Impurities

Cabozantinib cyclopropyl dicarboxamide Dimer

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 2439164-91-5

Mol F.

: C39H34N4O8

Mol W.

: 686.7

Cat No.

: SA52516

Cabozantinib, Impurities

Cabozantinib Des Fluoro Impurity | CAS : 849221-94-9

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 849221-94-9

Mol F.

: C28H25N3O5

Mol W.

: 483.5

Cat No.

: SA52503

Cabozantinib, Impurities

Cabozantinib Fumarate

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: NA

Mol F.

: C32H28FN3O9

Mol W.

: 617.59

Cat No.

: SA52508

Cabozantinib, Impurities

Cabozantinib Hydroxyphenyl Impurity | CAS : 849217-60-3

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 849217-60-3

Mol F.

: C17H15FN2O3

Mol W.

: 314.3

Cat No.

: SA52509

Cabozantinib, Impurities

Cabozantinib Methyl Ester Analog | CAS : 1584696-82-1

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 1584696-82-1

Mol F.

: C23H22N2O6

Mol W.

: 422.4

Cat No.

: SA52512

Cabozantinib, Impurities

Cabozantinib N-oxide Impurity | CAS : 1621681-63-7

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 1621681-63-7

Mol F.

: C28H24FN3O6

Mol W.

: 517.5

Cat No.

: SA52513

Cabozantinib, Impurities

Cabozantinib Oxalamide Dimer Impurity | CAS : 2832439-31-1

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 2832439-31-1

Mol F.

: C36H30N4O8

Mol W.

: 646.7

Cat No.

: SA52507

Cabozantinib, Impurities

Cabozantinib oxy aniline Impurity | CAS : 190728-25-7

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 190728-25-7

Mol F.

: C17H16N2O3

Mol W.

: 296.3

Cat No.

: SA52519

Cabozantinib, Impurities

Cabozantinib Quinolinol Impurity | CAS : 13425-93-9

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 13425-93-9

Mol F.

: C11H11NO3

Mol W.

: 205.2

Cat No.

: SA52518

Cabozantinib, Impurities

Cabozantinib Urea Dimer | CAS : 2840522-81-6

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 2840522-81-6

Mol F.

: C35H30N4O7

Mol W.

: 618.6

Cat No.

: SA52514

Canagliflozin, Impurities

Canagliflozin

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 842133-18-0

Mol F.

: C₂₄H₂₅FO₅S

Mol W.

: 444.52

Cat No.

: SA14911

Canagliflozin, Impurities

Canagliflozin 2,3-dehydroxy impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

Mol F.

: C24H23FO4S

Mol W.

: 426.5

Cat No.

: SA14920

Canagliflozin, Impurities

Canagliflozin Acetophenon Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

Mol F.

: C20H17FOS

Mol W.

: 324.42

Cat No.

: SA14913

Canagliflozin

Canagliflozin Bromo Impurity

$85.00 25 mg

PLEASE ENQUIRE

CAS No.

: 1030825-20-7

Mol F.

: C18H14BrFS

Mol W.

: 361.27

Cat No.

: SA14916