Home / Products

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, Prochlorperazine Maleate

Prochlorperazine Maleate Degradant II

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

Mol F.

: C20H24ClN3O2S

Mol W.

: 405.94

Cat No.

: SA45600

Impurities, Topiramate

Topiramate Azidosulfate Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 106881-35-0

Mol F.

: C12H19N3O8S

Mol W.

: 365.36

Cat No.

: SA45516

Impurities, Topiramate

R-Hydroxy Topiramate

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 198215-60-0

Mol F.

: C12H21NO9S

Mol W.

: 355.36

Cat No.

: SA45515

Impurities, Topiramate

S-Hydroxy Topiramate

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 198215-62-2

Mol F.

: C12H21NO9S

Mol W.

: 355.36

Cat No.

: SA45514

Impurities, Topiramate

4,5-O-(1-Methylethylidene)-β-D-fructopyranose

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 912456-61-2

Mol F.

: C9H16O6

Mol W.

: 220.22

Cat No.

: SA45513

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, Topiramate

Des-[4,5-O-(1-methylethylidene)] Topiramate

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 205249-06-5

Mol F.

: C9H17NO6S

Mol W.

: 267.3

Cat No.

: SA45511

Impurities, Topiramate

D-Fructopiranose Hydrochloride

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 32785-90-3

Mol F.

: C12H19ClO5

Mol W.

: 278.73

Cat No.

: SA45510

Impurities, Topiramate

Topiramate N-Methyl Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 97240-80-7

Mol F.

: C13H23NO8S

Mol W.

: 353.39

Cat No.

: SA45509

Impurities, Topiramate

Topiramate Chlorosulfonyl Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 150609-95-3

Mol F.

: C12H19ClO8S

Mol W.

: 358.79

Cat No.

: SA45508

Impurities, Topiramate

2,3-Desisopropylidene Topiramate Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 851957-35-2

Mol F.

: C9H17NO8S

Mol W.

: 299.3

Cat No.

: SA45507

Impurities, Topiramate

Topiramate Di-desisopropylidene Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 106881-42-9

Mol F.

: C6H13NO8S

Mol W.

: 259.23

Cat No.

: SA45506

Impurities, Topiramate

Topiramate EP Impurity E

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 57-48-7

Mol F.

: C6H12O6

Mol W.

: 180.16

Cat No.

: SA45505

Impurities, Topiramate

Topiramate EP Impurity A

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 20880-92-6

Mol F.

: C12H20O6

Mol W.

: 260.27

Cat No.

: SA45504

Impurities, Topiramate

Topiramate EP impurity D

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 950603-46-0

Mol F.

: C25H39NO15S

Mol W.

: 625.6

Cat No.

: SA45503

Impurities, Topiramate

Topiramate EP impurity C

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 106881-41-8

Mol F.

: C9H17NO8S

Mol W.

: 299.3

Cat No.

: SA45502

Impurities, Topiramate

Topiramate EP impurity B

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 876403-98-4

Mol F.

: C17H30N2O9S

Mol W.

: 438.49

Cat No.

: SA45501

Impurities, Topiramate

Topiramate

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 97240-79-4

Mol F.

: C12H21NO8S

Mol W.

: 339.36

Cat No.

: SA45500

Fosaprepitant

Fosaprepitant (Morpholine Nitroso Intermediate)

Please enquire for price & pack size

In Stock

CAS No.

Mol F.

: C20H17F7N2O3

Mol W.

: 466.35

Cat No.

: SA45428

Fosaprepitant, Impurities

Fosaprepitant Dimeglumine impurity F

Please enquire for price & pack size

In Stock

CAS No.

Mol F.

: C44H62F7N6O16P

Mol W.

: 1094.96 (Dimeglumine salt); 704.53 (Free Base)

Cat No.

: SA45427

Fosaprepitant, Impurities

MORPHOLINE IMPURITY FOR APREPITANT (Oxalatae salt)

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 1242175-41-2

Mol F.

: C22H20F7NO6

Mol W.

: 527.4

Cat No.

: SA45426

Fosaprepitant, Impurities

(1R, 2R, 3S) Fosaprepitant Dimeglumine

Please enquire for price & pack size

In Stock

CAS No.

: 265121-04-8

Mol F.

: C37H56F7N6O16P (Dimeglumine salt)

Mol W.

: 1004.83

Cat No.

: SA45425

Fosaprepitant, Impurities

Dibenzyl ester of desfluoro fosaprepitant

$750.00 25 mg

In Stock

CAS No.

Mol F.

: C37H35F6N4O6P

Mol W.

: 776.66

Cat No.

: SA45424

Fosaprepitant, Impurities

Dibenzyl ester of fosaprepitant enantiomer

$850.00 25 mg

In Stock

CAS No.

Mol F.

: C37H34F7N4O6P

Mol W.

: 794.65

Cat No.

: SA45423

Fosaprepitant, Impurities

Aprepitant M2 Metabolite (1S, 2S, 3R)-Isomer

$450.00 25 mg

PLEASE ENQUIRE

CAS No.

: 327623-37-0 (free base); 2475188-05-5

Mol F.

: C20H18F7NO2

Mol W.

: 437.35

Cat No.

: SA45422

Fosaprepitant, Impurities

Desfluoro Fosaprepitant Dimeglumine

$750.00 25 mg

In Stock

CAS No.

Mol F.

: C37H56F6N6O16P

Mol W.

: 985.83

Cat No.

: SA45421

Fosaprepitant, Impurities

N-Benzyl morpholinone impurity

$350.00 25 mg

In Stock

CAS No.

Mol F.

: C21H19F6NO3

Mol W.

: 447.37

Cat No.

: SA45420

Fosaprepitant, Impurities

N-Benzyl CAH Impurity

$350.00 25 mg

In Stock

CAS No.

Mol F.

: C27H24F7NO2

Mol W.

: 527.47

Cat No.

: SA45419

Fosaprepitant, Impurities

Fosaprepitant Enantiomer

$750.00 25 mg

In Stock

CAS No.

: 1523569-86-9; 1523569-87-0 [Salt]

Mol F.

: C37H56F7N6O16P

Mol W.

: 1004.83●614.41 (Free base)

Cat No.

: SA45418

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

Fosaprepitant, Impurities

(1’S,2R,3S)-Fosaprepitant Dimeglumine

$850.00 25 mg

In Stock

CAS No.

Mol F.

: C37H56F7N6O16P

Mol W.

: 1004.83

Cat No.

: SA45416

Fosaprepitant, Impurities

(1’R,2S,3R)-Fosaprepitant Dimeglumine

$850.00 25 mg

In Stock

CAS No.

Mol F.

: C37H56F7N6O16P

Mol W.

: 1004.83

Cat No.

: SA45415

Fosaprepitant, Impurities

Aprepitant N-Oxide

$550.00 25 mg

In Stock

CAS No.

: 172673-23-3

Mol F.

: C23H21F7N4O4

Mol W.

: 550.4

Cat No.

: SA45414

Fosaprepitant, Impurities

Fosaprepitant Impurity B

$350.00 25 mg

PLEASE ENQUIRE

CAS No.

: 219821-37-1

Mol F.

: C24H25F7N4O4

Mol W.

: 566.47

Cat No.

: SA45413

Fosaprepitant, Impurities

Fosaprepitant Impurity D

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: NA

Mol F.

: C23H22F7N4O6P

Mol W.

: 614.41

Cat No.

: SA45412

Fosaprepitant, Impurities

Fosaprepitant Impurity C

$100.00 25 mg

In Stock

CAS No.

: 170729-80-3

Mol F.

: C23H21F7N4O3

Mol W.

: 534.43

Cat No.

: SA45411

Fosaprepitant, Impurities

Fosaprepitant Impurity A

$450.00 25 mg

In Stock

CAS No.

: 170902-81-5

Mol F.

: C23H21F7N4O3

Mol W.

: 534.43

Cat No.

: SA45410

Fosaprepitant, Impurities

Fosaprepitant Monobenzyl Ester Impurity

$450.00 25 mg

PLEASE ENQUIRE

CAS No.

: 889852-02-2

Mol F.

: C30H28F7N4O6P

Mol W.

: 704.53

Cat No.

: SA45409

Fosaprepitant, Impurities

Des-fluoro CAH Impurity

$450.00 25 mg

In Stock

CAS No.

: 171338-33-3

Mol F.

: C20H19F6NO2

Mol W.

: 419.36

Cat No.

: SA45408

Fosaprepitant

Fosaprepitant Dibenzyl Phosphate Ester Impurity

$250.00 25 mg

PLEASE ENQUIRE

CAS No.

: 265121-01-5

Mol F.

: C37H34F7N4O6P

Mol W.

: 794.65

Cat No.

: SA45407

Fosaprepitant, Impurities

Fosaprepitant Diastereomer impurity

$850.00 25 mg

In Stock

CAS No.

: 1523569-90-5

Mol F.

: C23H22F7N4O6P.2C7H17NO5

Mol W.

: 1004.83

Cat No.

: SA45406

Fosaprepitant, Impurities

Fosaprepitant desfluoro impuirty

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

Mol F.

: C23H23F6N4O6P

Mol W.

: 596.41

Cat No.

: SA45405

Fosaprepitant, Impurities

Fosaprepitant Ester Impurity

Please enquire for price & pack size

In Stock

CAS No.

: 1803189-49-2

Mol F.

: C24H25F7N4O4

Mol W.

: 566.47

Cat No.

: SA45404

Fosaprepitant, Impurities

Fosaprepitant Dibenzyl Ester Impurity

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 265121-01-5

Mol F.

: C37H34F7N4O6P

Mol W.

: 794.7

Cat No.

: SA45403

Fosaprepitant

Morpholin Impurity

$100.00 25 mg

In Stock

CAS No.

: 1242175-41-2

Mol F.

: C22H20F7NO6

Mol W.

: 527.4

Cat No.

: SA45402

Fosaprepitant, Impurities

Dibenzyl Phosphate impurity

$60.00 25 mg

PLEASE ENQUIRE

CAS No.

: 1623-08-1

Mol F.

: C14H15O4P

Mol W.

: 278.2

Cat No.

: SA45401

Impurities, Uracil

6-METHYLURACIL

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 626-48-2

Mol F.

: C5H6N2O2

Mol W.

: 126.11

Cat No.

: SA45305

Impurities, Uracil

6-Chloro-1,3-dimethyluracil

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 6972-27-6

Mol F.

: C6H7ClN2O2

Mol W.

: 174.58

Cat No.

: SA45304

Impurities, Uracil

6-Chlorouracil

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 4270-27-3

Mol F.

: C4H3ClN2O2

Mol W.

: 146.53

Cat No.

: SA45303

Impurities, Uracil

5-Methoxypyrimidine-4,6-diol

Please enquire for price & pack size

Limited Stock

CAS No.

: 5193-84-0

Mol F.

: C5H6N2O3

Mol W.

: 142.11

Cat No.

: SA45301

Impurities, Sapropterin

(2S,3S,4S,E)-1-(2-phenylhydrazono)pentane-2,3,4-triol

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 59245-36-2

Mol F.

: C11H16N2O3

Mol W.

: 224.26

Cat No.

: SA45216

Impurities, Sapropterin

2,6-Diamino-4-hydroxy-5-nitrosopyrimidine

Please enquire for price & pack size

PLEASE ENQUIRE

CAS No.

: 2387-48-6

Mol F.

: C4H5N5O2

Mol W.

: 155.12

Cat No.

: SA45215