Home / Products

Product Categories

Products / Reference Standards / API Impurities / API Related Compounds / Pharmaceutical Standards

Please click on the respective API letter

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, Prazosin

Prazosin EP Impurity E

Please enquire for price & pack size

Limited Stock

CAS No.

: 102839-00-9

Mol F.

: C24H28N8O4

Mol W.

: 492.53

Cat No.

: SA24204

Impurities, Prednisolone

Prednisolone EP Impurity J

$395.00 25 mg

Limited Stock

CAS No.

: 1807-14-3

Mol F.

: C21H28O4

Mol W.

: 344.45

Cat No.

: SA16709

Impurities, Prochlorperazine Maleate

Prochlorperazine Maleate Degradant V

Please enquire for price & pack size

Limited Stock

CAS No.

: 58-38-8

Mol F.

: C20H24ClN3OS

Mol W.

: 389.94

Cat No.

: SA45602

Impurities, Prochlorperazine Maleate

Prochlorperazine Related Compound A

Please enquire for price & pack size

Limited Stock

CAS No.

: 1346602-34-3

Mol F.

: C20H24ClN3S

Mol W.

: 373.94

Cat No.

: SA45603

Impurities, Progesterone

Progesterone EP Impurity G

Please enquire for price & pack size

Limited Stock

CAS No.

: 2257421-79-5

Mol F.

: C27H38O2

Mol W.

: 394.59

Cat No.

: SA18005

Abacavir, Impurities

Pyrimidine Dimer Derivative

$595.00 25 mg

Limited Stock

CAS No.

Mol F.

: C16H17ClN9O3

Mol W.

: 454.27

Cat No.

: SA18122

Impurities, Raloxifene

Raloxifene N-Oxide

Please enquire for price & pack size

Limited Stock

CAS No.

: 195454-31-0

Mol F.

: C28H27NO5S

Mol W.

: 489.58

Cat No.

: SA24907

Impurities, Rilpivirine

Rilpivirine N-Oxide

Please enquire for price & pack size

Limited Stock

CAS No.

: NA

Mol F.

: C22H18N6O

Mol W.

: 382.42

Cat No.

: SA25400

Impurities, Rivaroxaban

Rivaroxaban Enantiomer (R-Isomer)

$100.00 25 mg

Limited Stock

CAS No.

: 865479-71-6

Mol F.

: C19H18ClN3O5S

Mol W.

: 435.88

Cat No.

: SA18601

Impurities, Rivaroxaban

Rivaroxaban Impurity A

$550.00 25 mg

Limited Stock

CAS No.

Mol F.

: C₂₈H₃₁N₅O₈

Mol W.

: 565.57

Cat No.

: SA18616

Impurities, Rosuvastatin

Rosuvastatin (6S)-Lactone Impurity

$650.00 25 mg

Limited Stock

CAS No.

: 854898-47-8

Mol F.

: C22H26FN3O5S

Mol W.

: 463.52

Cat No.

: SA12182

Impurities, Rosuvastatin

Rosuvastatin EP Impurity F Z-isomer

$250.00 25 mg

Limited Stock

CAS No.

: 1821422-50-7

Mol F.

: C29H40FN3O6S

Mol W.

: 577.71

Cat No.

: SA121116

Fulvestrant, Impurities

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

Please enquire for price & pack size

Limited Stock

CAS No.

Mol F.

: C42H63F5O5S

Mol W.

: 775

Cat No.

: SA11807

Impurities, Saxagliptin

Saxagliptin Imine Impurity

Please enquire for price & pack size

Limited Stock

CAS No.

: 1350800-76-8

Mol F.

: C18H25N3O2

Mol W.

: 315.41

Cat No.

: SA27405

Impurities, Saxagliptin

Saxagliptin N-Acetate Impurity

Please enquire for price & pack size

Limited Stock

CAS No.

: NA

Mol F.

: C20H27N3O3

Mol W.

: 357.45

Cat No.

: SA27406

Impurities, Sulpiride

Sulpiride EP impurity B

Please enquire for price & pack size

Limited Stock

CAS No.

: 33045-52-2

Mol F.

: C9H11NO5S

Mol W.

: 245.26

Cat No.

: SA10902

Impurities, Telmisartan

Telmisartan Bromo Amide

Please enquire for price & pack size

Limited Stock

CAS No.

: 147404-72-6

Mol F.

: C14H12BrNO

Mol W.

: 289.01

Cat No.

: SA33910

Impurities, Tenofovir

Tenofovir Disoproxil Fumarate IP Impurity D

$295.00 25 mg

Limited Stock

CAS No.

: 1422284-15-8

Mol F.

: C21H32N5O11P

Mol W.

: 561.48

Cat No.

: SA36904

Impurities, Testosterone

Testosterone EP Impurity B

Please enquire for price & pack size

Limited Stock

CAS No.

: 972-46-3

Mol F.

: C21H30O2

Mol W.

: 314.5

Cat No.

: SA16204

Impurities, Testosterone

Testosterone EP Impurity J

Please enquire for price & pack size

Limited Stock

CAS No.

: 57144-06-6

Mol F.

: C20H28O2

Mol W.

: 300.44

Cat No.

: SA16212

Impurities, Tofacitinib

Tofacitinib N-Oxide

$280.00 25 mg

Limited Stock

CAS No.

: 2028267-73-2

Mol F.

: C16H20N6O2

Mol W.

: 328.37

Cat No.

: SA43304

Impurities, Triamcinolone Acetonide

Triamcinolone Acetonide EP Impurity B

$495.00 25 mg

Limited Stock

CAS No.

: 1260149-96-9

Mol F.

: C24H29FO6

Mol W.

: 432.48

Cat No.

: SA30202

Impurities, Trimethoprim

Trimethoprim EP Impurity C

$175.00 25 mg

Limited Stock

CAS No.

: 29606-06-2

Mol F.

: C14H18N4O4

Mol W.

: 306.32

Cat No.

: SA27103

Impurities, Indacaterol

Unknown impurity RRT 1.11

Please enquire for price & pack size

Limited Stock

CAS No.

: NA

Mol F.

: C18H13Br2NO3

Mol W.

: 451.11

Cat No.

: SA48712

Cinacalcet, Impurities

USP Cinacalcet Related Compound D

Please enquire for price & pack size

Limited Stock

CAS No.

: 694495-47-1

Mol F.

: C22H23ClF3N

Mol W.

: 393.87

Cat No.

: SA34206

Impurities, Venlafaxine

Venlafaxine EP Impurity B

$155.00 25 mg

Limited Stock

CAS No.

: 323176-93-8

Mol F.

: C14H22ClNO3

Mol W.

: 287.78

Cat No.

: SA22701

Gemcitabine, Impurities

((2R,3R)-3-(benzoyloxy)-4,4-difluoro-5-oxotetrahydrofuran-2-yl)methyl benzoate impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

Mol F.

: C19H14F2O6

Mol W.

: 376.31

Cat No.

: SA44523

Canagliflozin, Impurities

((2R,3S,4R,5R,6R)-6-(3-((5-(4-fluorophenyl)thiophen-2-yl)methyl)-4-methylphenyl)-3,4,5-trihydroxytetrahydro-2H-pyran-2-yl)methyl propionate

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

Mol F.

: C27H29FO6S

Mol W.

: 500.58

Cat No.

: SA14935

Impurities, Remdesivir

((2R,3S,4R,5R)-5-(4-aminopyrrolo[1,2-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methyl dihydrogen phosphate

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: NA

Mol F.

: C12H14N5O7P

Mol W.

: 371.06

Cat No.

: SA42735

Impurities, Molnupiravir

((3aR,4R,6R,6aR)-2,2-Dimethyl-6-(2-oxo-4-(1H-1,2,4-triazol-1-yl)pyrimidin-1(2H)-yl)-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl isobutyrate

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 2346620-54-8

Mol F.

: C18H23N5O6

Mol W.

: 405.41

Cat No.

: SA46203

Impurities, Molnupiravir

((3aR,4R,6R,6aR)-6-(2,4-Dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2,2-dimethyl-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl isobutyrate

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 2346620-53-7

Mol F.

: C16H22N2O7

Mol W.

: 354.36

Cat No.

: SA46204

Impurities, Topiramate

((3aR,6S,7S,7aR)-6,7-Dihydroxy-2,2-dimethyltetrahydro-3aH-[1,3]dioxolo[4,5-b]pyran-3a-yl)methyl Sulfamate

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 152192-21-7

Mol F.

: C9H17NO8S

Mol W.

: 299.3

Cat No.

: SA45512

Impurities, Rosuvastatin

(+/-)-tert-Butyl 6-Chloro-5-hydroxy-3-oxohexanoate

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 319924-73-7

Mol F.

: C10H17ClO4

Mol W.

: 236.69

Cat No.

: SA12154

Ethinylestradiol, Impurities

(±)-6-Hydroxy Ethinylestradiol

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 108646-70-4

Mol F.

: C20H24O3

Mol W.

: 312.41

Cat No.

: SA13115

Fosaprepitant, Impurities

(1’S,2S,3R)-Fosaprepitant Dimeglumine

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: NA

Mol F.

: C37H56F7N6O16P

Mol W.

: 1004.83

Cat No.

: SA45417

Ethinylestradiol, Impurities

(13S,14R, 17R)-Ethinyl Estradiol

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

Mol F.

: C20H20O2

Mol W.

: 292.37

Cat No.

: SA13131

Impurities, Mometasone

(16α)-21-Chloro-17-hydroxy-16-methylpregna-1,4,9(11)-triene-3,20-dione

$595.00 25 mg

PLEASE ENQUIRE

CAS No.

: 151265-36-0

Mol F.

: C22H27ClO3

Mol W.

: 374.9

Cat No.

: SA28715

Impurities, Norethindrone

(17α)-17-Hydroxy-19-norpregn-5-en-20-yn-3-one Cyclic 1,2-Ethanediyl Acetal

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 22170-58-7

Mol F.

: C22H30O3

Mol W.

: 342.47

Cat No.

: SA13435

Estradiol, Impurities

(17β)-3,17-Bis[(1-oxopentyl)oxy]-estra-1,3,5(10)-trien-6-one

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 1350468-78-8

Mol F.

: C₂₈H₃₈O₅

Mol W.

: 454.6

Cat No.

: SA13208

Estradiol, Impurities

(17β)-3,17-Bis[(tetrahydro-2H-pyran-2-yl)oxy]-estra-1,3,5(10)-trien-6-one

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 53573-82-3

Mol F.

: C₂₈H₃₈O₅

Mol W.

: 454.6

Cat No.

: SA13207

Impurities, Levomilnacipran

(1R-cis)-Milnacipran

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 175131-61-0

Mol F.

: C₁₅H₂₃ClN₂O

Mol W.

: 282.81

Cat No.

: SA29203

Impurities, Tadalafil

(1R, 3R) N-Methyl Amide Tadalafil Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: NA

Mol F.

: C20H19N3O3

Mol W.

: 349.38

Cat No.

: SA20910

Edoxaban, Impurities

(1R,2R,4S)-2-((tert-Butoxycarbonyl)amino)-4-(dimethylcarbamoyl)cyclohexyl Methanesulfonate

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 929693-31-2

Mol F.

: C15H28N2O6S

Mol W.

: 364.46

Cat No.

: SA33037

Impurities, Tramadol

(1R,2R)-Tramadol EP Impurity D (HCl)

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 148262-77-5

Mol F.

: C15H23NO2. HCl

Mol W.

: 249.36 : 36.46

Cat No.

: SA49707

Impurities, Nirmatrelvir

(1R,2S,5S)-N-((2S)-1-Amino-1-oxo-3-(2-oxopyrrolidin-3-yl)propan-2-yl)-3-((S)-3,3-dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)-6,6-dimethy

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: NA

Mol F.

: C23H34F3N5O5

Mol W.

: 517.6

Cat No.

: SA46913

Impurities, Sapropterin

(1R,2S)-1-(2-amino-4-oxo-3,4-dihydropteridin-6-yl)-2-hydroxypropyl acetate

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: NA

Mol F.

: C11H13N5O4

Mol W.

: 279.26

Cat No.

: SA45212

Impurities, Ticagrelor

(1R,2S)-2-(3,4-Difluorophenyl)cyclopropanamine Hydrochloride

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 1402222-66-5

Mol F.

: C9H9F2N

Mol W.

: 205.63

Cat No.

: SA32518

Buildling Blocks

(1R,4S)-cis-4-Acetoxy- 2-cyclopenten-1-ol

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 60176-77-4

Mol F.

: C7H10O3

Mol W.

: 142.15

Cat No.

: SB10603

Impurities, Nirmatrelvir

(1S,2R,5R)-N-((S)-1-Cyano-2-((S)-2-oxopyrrolidin-3-yl)ethyl)-3-((S)-3,3-dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)-6,6-dimethyl-3-azabi

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: NA

Mol F.

: C23H32F3N5O4

Mol W.

: 499.5

Cat No.

: SA46904

Impurities, Tramadol

(1S,2S)-Tramadol EP Impurity D (HCl)

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 148218-19-3

Mol F.

: C15H23NO2. HCl

Mol W.

: 249.36 : 36.46

Cat No.

: SA49704