Active pharmaceutical ingredient (API) impurities for research

All products contained in this category are intended for laboratory use only, and are not meant for human consumption.

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Product data	Purity	Price range	Estimated delivery
21-Dehydrocorticosterone (mixture of the aldehyde and the hydrated form) REF: TR-D229160CAS: 20287-97-2	- - -	324.00 €~2,109.00 €	Mon 28 Oct 24
5,6-Dehydro Finasteride REF: TR-D229655CAS: 1800205-94-0	- - -	362.00 €~2,438.00 €	Mon 28 Oct 24
4,5-Dehydro Apixaban REF: TR-D229385CAS: 1074549-89-5	- - -	330.00 €~2,171.00 €	Mon 28 Oct 24
Dehydro Aripiprazole-d8 Hydrochloride REF: TR-D229152CAS: 1215383-78-0	- - -	509.00 €~3,417.00 €	Mon 28 Oct 24
Dehydro Amlodipine Oxalate REF: TR-D229100CAS: 1216406-90-4	- - -	332.00 €~2,316.00 €	Mon 28 Oct 24
Glycocholic Acid Sodium Salt REF: TR-G641368CAS: 863-57-0	- - -	176.00 €~559.00 €	Mon 28 Oct 24
Dehydro Felodipine Ester Lactone REF: TR-D229690CAS: 96558-27-9	- - -	348.00 €~2,329.00 €	Mon 28 Oct 24
N-Benzyl Epinephrine REF: TR-B276400CAS: 1095714-91-2	- - -	350.00 €~2,356.00 €	Mon 28 Oct 24
20,21-Dehydro Spironolactone REF: TR-D229405CAS: 132458-33-4	- - -	319.00 €~2,074.00 €	Mon 28 Oct 24
Talbutal REF: TR-T004975CAS: 115-44-6	- - -	373.00 €~2,502.00 €	Mon 28 Oct 24
1-[(2'-Carbamoylbiphenyl-4-yl) methyl]-2-ethoxybenzimidazole-7-carboxylic Acid REF: TR-D229206CAS: 1696392-11-6	- - -	176.00 €~1,749.00 €	Mon 28 Oct 24
Zolmitriptan N-Oxide REF: TR-Z639010CAS: 251451-30-6	- - -	310.00 €~1,272.00 €	Mon 28 Oct 24
Acetaminophen Dimer-d6 REF: TR-A161237CAS: 1794817-30-3	- - -	252.00 €~1,622.00 €	Mon 28 Oct 24
N-Acetyl Sulfamethazine-d4 REF: TR-A187852CAS: 1189891-99-3	- - -	268.00 €~1,781.00 €	Mon 28 Oct 24
(D,L)-erythro-a-Phenyl-2-piperidineacetamide REF: TR-P335975CAS: 50288-63-6	- - -	310.00 €~2,000.00 €	Mon 28 Oct 24
5-Amino-N1-methyl-1H-imidazole-1,4-dicarboxamide REF: TR-A616300CAS: 188612-53-5	- - -	454.00 €~1,654.00 €	Mon 28 Oct 24
5b-Pregnane-3a,20a-diol REF: TR-P705130CAS: 80-92-2	- - -	188.00 €~976.00 €	Mon 28 Oct 24
5-Chloro Dasatinib REF: TR-C364925CAS: 2468737-75-7	- - -	315.00 €~2,036.00 €	Mon 28 Oct 24
[4S-(4a,7b,7aa)]-7,7a-Dihydro-7-hydroxy-4-methoxy-4H-furo[3,2-c]pyran-2(6H)-one (>85%) REF: TR-D449410CAS: 123251-08-1	>85%	315.00 €~2,039.00 €	Mon 28 Oct 24
1,2-Benzenedicarboxylic Acid, Dipentylester, Branched and Linear REF: TR-B189310CAS: 84777-06-0	- - -	106.00 €~498.00 €	Mon 28 Oct 24

21-Dehydrocorticosterone (mixture of the aldehyde and the hydrated form)

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21-Dehydrocorticosterone (mixture of the aldehyde and the hydrated form)

CAS:20287-97-2

Formula:

C₂₁H₂₈O₄

Color and Shape:

Neat

Molecular weight:

344.44

Ref: TR-D229160

25mg		324.00 €
250mg		2,109.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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5,6-Dehydro Finasteride

CAS:1800205-94-0

Formula:

C₂₃H₃₄N₂O₂

Color and Shape:

Neat

Molecular weight:

370.53

Ref: TR-D229655

5mg		362.00 €
50mg		2,438.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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4,5-Dehydro Apixaban

Controlled Product

CAS:1074549-89-5

Applications 4,5-Dehydro Apixaban is an impurity of Apixaban (A726700), a potent, direct, selective, and orally …

Formula:

C₂₅H₂₃N₅O₄

Color and Shape:

Neat

Molecular weight:

457.48

Ref: TR-D229385

25mg		2,171.00 €
2500µg		330.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Dehydro Aripiprazole-d8 Hydrochloride

Controlled Product

CAS:1215383-78-0

Formula:

C₂₃H₈H₁₇Cl₂N₃O₂·ClH

Color and Shape:

Off White Solid

Molecular weight:

490.88

Ref: TR-D229152

1mg		509.00 €
10mg		3,417.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Dehydro Amlodipine Oxalate

Controlled Product

CAS:1216406-90-4

Formula:

C₂₀H₂₃ClN₂O₅·C₂H₂O₄

Color and Shape:

White To Off-White

Molecular weight:

496.89

Ref: TR-D229100

5mg		332.00 €
50mg		2,316.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Glycocholic Acid Sodium Salt

CAS:863-57-0

Stability Hygroscopic Applications Glycocholic Acid Sodium Salt is a biochemical formed by the conjugation of …

Formula:

C₂₆H₄₂NO₆·Na

Color and Shape:

Neat

Molecular weight:

487.6045

Ref: TR-G641368

1g		559.00 €
100mg		176.00 €
500mg		317.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Dehydro Felodipine Ester Lactone

Controlled Product

CAS:96558-27-9

Applications A metabolite of Felodipine (F232375). References Wang, S.X. et al.: J. Pharmacol. Exp. Therap., …

Formula:

C₁₇H₁₃Cl₂NO₄

Color and Shape:

Neat

Molecular weight:

366.20

Ref: TR-D229690

1mg		348.00 €
10mg		2,329.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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N-Benzyl Epinephrine

CAS:1095714-91-2

Applications N-Benzyl Epinephrine is an impurity of Epinephrine (E588580).

Formula:

C₁₆H₁₉NO₃

Color and Shape:

Off White Solid

Molecular weight:

273.33

Ref: TR-B276400

10mg		350.00 €
100mg		2,356.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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20,21-Dehydro Spironolactone

Controlled Product

CAS:132458-33-4

Formula:

C₂₄H₃₀O₄S

Color and Shape:

White To Off-White

Molecular weight:

414.56

Ref: TR-D229405

25mg		2,074.00 €
2500µg		319.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Talbutal

Controlled Product

CAS:115-44-6

Applications A stuctural isomer of Butalbital (B690100). A short to intermediate-acting barbiturate that act as …

Formula:

C₁₁H₁₆N₂O₃

Color and Shape:

Neat

Molecular weight:

224.26

Ref: TR-T004975

10mg		373.00 €
100mg		2,502.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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1-[(2'-Carbamoylbiphenyl-4-yl) methyl]-2-ethoxybenzimidazole-7-carboxylic Acid

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1-[(2'-Carbamoylbiphenyl-4-yl) methyl]-2-ethoxybenzimidazole-7-carboxylic Acid

Controlled Product

CAS:1696392-11-6

Applications Degadant-3 is an intermediate used in the preparation of azilsartan kamedoxomil for use as …

Formula:

C₂₄H₂₁N₃O₄

Color and Shape:

White To Off-White

Molecular weight:

415.44

Ref: TR-D229206

10mg		176.00 €
50mg		263.00 €
500mg		1,749.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Zolmitriptan N-Oxide

Controlled Product

CAS:251451-30-6

Impurity Zolmitriptan USP Related Compound E Applications A metabolite of Zolmitriptan. Zolmitriptan USP Related Compound …

Formula:

C₁₆H₂₁N₃O₃

Color and Shape:

Neat

Molecular weight:

303.36

Ref: TR-Z639010

5mg		310.00 €
10mg		525.00 €
25mg		1,272.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Acetaminophen Dimer-d6

Controlled Product

CAS:1794817-30-3

Applications Acetaminophen Dimer-d6 is deuterium labeled Acetaminophen Dimer (A161235). Acetaminophen Dimer is an oxidatively couple …

Formula:

C₁₆H₁₀D₆N₂O₄

Color and Shape:

Neat

Molecular weight:

306.35

Ref: TR-A161237

25mg		1,622.00 €
2500µg		252.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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N-Acetyl Sulfamethazine-d4

Controlled Product

CAS:1189891-99-3

Applications The main labelled metabolite of Sulfamethazine. References Poul, N., et al.: Biochem. J., 136, …

Formula:

C₁₄H₁₂D₄N₄O₃S

Color and Shape:

Neat

Molecular weight:

324.39

Ref: TR-A187852

1mg		268.00 €
10mg		1,781.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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(D,L)-erythro-a-Phenyl-2-piperidineacetamide

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(D,L)-erythro-a-Phenyl-2-piperidineacetamide

Controlled Product

CAS:50288-63-6

Stability Hygroscopic Applications Intermediate in the preparation of D-threo-Methylphenidate (Ritalin)

Formula:

C₁₃H₁₈N₂O

Color and Shape:

Neat

Molecular weight:

218.29

Ref: TR-P335975

50mg		310.00 €
500mg		2,000.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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5-Amino-N1-methyl-1H-imidazole-1,4-dicarboxamide

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5-Amino-N1-methyl-1H-imidazole-1,4-dicarboxamide

Controlled Product

CAS:188612-53-5

Applications 5-Amino-N1-methyl-1H-imidazole-1,4-dicarboxamide is a metabolite of Temozolomide (T017775); an imidazotetrazine alkylating agent and antineoplastic. References …

Formula:

C₆H₉N₅O₂

Color and Shape:

Off-White

Molecular weight:

183.17