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
Dimethyl-d6 Trisulfide REF: TR-D479672CAS: 58069-93-5	- - -	330.00 €~2,132.00 €	Mon 28 Oct 24
3-Methyl-2-oxovaleric Acid-d8 Sodium Salt REF: TR-M326424CAS: 1795037-03-4	- - -	335.00 €~2,136.00 €	Mon 28 Oct 24
2-Piperazinyl-4-amino-6,7-dimethoxyquinazoline REF: TR-P480500CAS: 60547-97-9	- - -	348.00 €~1,179.00 €	Mon 28 Oct 24
2-[[(2'-Cyano[1,1'-biphenyl]-4-yl)methyl]amino]-3-nitro-benzoic Acid Methyl Ester REF: TR-C988320CAS: 139481-28-0	- - -	224.00 €~1,648.00 €	Mon 28 Oct 24
Eszopiclone-d8 REF: TR-E889152CAS: 1093385-24-0	- - -	315.00 €~1,981.00 €	Mon 28 Oct 24
N-[(2S)-3-Amino-2-hydroxypropyl]-N-[3-fluoro-4-(4-morpholinyl)phenyl]acetamide Hydrochloride REF: TR-A609075CAS: 1391068-25-9	- - -	347.00 €~1,985.00 €	Mon 28 Oct 24
L-(-)-Epinephrine-d3 REF: TR-E588583CAS: 1217733-17-9	- - -	400.00 €~2,711.00 €	Mon 28 Oct 24
10-Deacetyl-7,10-dimethoxy-Baccatin III REF: TR-D198890CAS: 183133-94-0	- - -	293.00 €~541.00 €	Mon 28 Oct 24
Trigonelline-D3 Hydrate REF: TR-T794001CAS: 515835-69-5 535-83-1	- - -	252.00 €	Mon 28 Oct 24
25-Deacetyl-23-acetyl Rifampicin (>85%) REF: TR-D198200CAS: 1416773-23-3	>85%	320.00 €~2,074.00 €	Mon 28 Oct 24
D,L-Trihexyphenidyl Hydrochloride-D11 REF: TR-T795002CAS: 144-11-6 52-49-3	- - -	329.00 €~3,514.00 €	Mon 28 Oct 24
OP-1118 REF: TR-O662000CAS: 1030825-28-5	- - -	362.00 €~2,453.00 €	Mon 28 Oct 24
Digoxigenin Bisdigitoxoside REF: TR-D446500CAS: 5297-05-2	- - -	224.00 €~2,251.00 €	Mon 28 Oct 24
(S)-Baclofen REF: TR-B107995CAS: 66514-99-6	- - -	274.00 €~933.00 €	Mon 28 Oct 24
Acetaminophen Glutathione Disodium Salt REF: TR-A161223CAS: 64889-81-2 79032-41-0	- - -	313.00 €~2,003.00 €	Mon 28 Oct 24
Δ4-Pregnen-20α-ol-3-one REF: TR-P712215CAS: 145-14-2	- - -	315.00 €~2,195.00 €	Mon 28 Oct 24
1-Methyl-4-nitro-3-propylpyrazole-5-carboxamide REF: TR-M320535CAS: 139756-01-7	- - -	269.00 €~1,857.00 €	Mon 28 Oct 24
1,6’-Di-HABA Kanamycin A Sulfate REF: TR-D446385CAS: 197909-67-4	- - -	366.00 €~2,682.00 €	Mon 28 Oct 24
N-Acetyl Sulfamethazine REF: TR-A187850CAS: 100-90-3	- - -	270.00 €~830.00 €	Mon 28 Oct 24
Formoterol EP Impurity B REF: TR-F693440CAS: 1224588-66-2	- - -	80.00 €~5,339.00 €	Mon 28 Oct 24

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Dimethyl-d6 Trisulfide

Controlled Product

CAS:58069-93-5

Applications A labelled metabolite produced by Myxobacteria. Used in the study of pathways and substrate …

Formula:

C₂D₆S₃

Color and Shape:

Colourless

Molecular weight:

132.3

Ref: TR-D479672

10mg		330.00 €
100mg		2,132.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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3-Methyl-2-oxovaleric Acid-d8 Sodium Salt

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3-Methyl-2-oxovaleric Acid-d8 Sodium Salt

Controlled Product

CAS:1795037-03-4

Stability Hygroscopic Applications 3-Methyl-2-oxovaleric Acid-d8 Sodium Salt, is the labeled analogue of 3-Methyl-2-oxovaleric Acid, an …

Formula:

C₆HD₈NaO₃

Color and Shape:

Neat

Molecular weight:

160.17

Ref: TR-M326424

25mg		2,136.00 €
2500µg		335.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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2-Piperazinyl-4-amino-6,7-dimethoxyquinazoline

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2-Piperazinyl-4-amino-6,7-dimethoxyquinazoline

CAS:60547-97-9

Impurity Terazosin EP Impurity C Applications 2-Piperazinyl-4-amino-6,7-dimethoxyquinazoline (Terazosin EP Impurity C) is a metabolite of …

Formula:

C₁₄H₁₉N₅O₂

Color and Shape:

White

Molecular weight:

289.33

Ref: TR-P480500

1g		1,179.00 €
50mg		348.00 €
100mg		394.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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2-[[(2'-Cyano[1,1'-biphenyl]-4-yl)methyl]amino]-3-nitro-benzoic Acid Methyl Ester

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2-[[(2'-Cyano[1,1'-biphenyl]-4-yl)methyl]amino]-3-nitro-benzoic Acid Methyl Ester

CAS:139481-28-0

Applications Intermediate in the synthesis of nonpeptide angiotensin II receptor antagonists. Candesartan (C175575) impurity. Candesartan …

Formula:

C₂₂H₁₇N₃O₄

Color and Shape:

Neat

Molecular weight:

387.39

Ref: TR-C988320

10mg		224.00 €
100mg		1,648.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Eszopiclone-d8

Controlled Product

CAS:1093385-24-0

Applications Eszopiclone is the active stereoizomer of Zopiclone and belongs to the class of drug …

Formula:

C₁₇H₉D₈ClN₆O₃

Color and Shape:

Neat

Molecular weight:

396.86

Ref: TR-E889152

1mg		315.00 €
10mg		1,981.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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N-[(2S)-3-Amino-2-hydroxypropyl]-N-[3-fluoro-4-(4-morpholinyl)phenyl]acetamide Hydrochloride

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N-[(2S)-3-Amino-2-hydroxypropyl]-N-[3-fluoro-4-(4-morpholinyl)phenyl]acetamide Hydrochloride

Controlled Product

CAS:1391068-25-9

Applications N-[(2S)-3-Amino-2-hydroxypropyl]-N-[3-fluoro-4-(4-morpholinyl)phenyl]acetamide is one of the major thermal degradation products of Linezolid (L466500). Linezolid impurity. …

Formula:

C₁₅H₂₂FN₃O₃·ClH

Color and Shape:

Neat

Molecular weight:

347.81

Ref: TR-A609075

5mg		347.00 €
10mg		587.00 €
50mg		1,985.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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L-(-)-Epinephrine-d3

Controlled Product

CAS:1217733-17-9

Stability Hygroscopic Applications Endogenous catcholamine with combined α-and β-agonist activity. Principal sympathomimetic hormone produced by …

Formula:

C₉H₁₀D₃NO₃

Color and Shape:

Neat

Molecular weight:

186.22

Ref: TR-E588583

25mg		2,711.00 €
2500µg		400.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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10-Deacetyl-7,10-dimethoxy-Baccatin III

Controlled Product

CAS:183133-94-0

Stability Hygroscopic Applications 10-Deacetyl-7,10-dimethoxy-Baccatin III is an intermediate used to prepare Cabazitaxel (C046500). References Hsiao, …

Formula:

C₃₁H₄₀O₁₀

Color and Shape:

White

Molecular weight:

572.64

Ref: TR-D198890

50mg		293.00 €
100mg		541.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Trigonelline-D3 Hydrate

Controlled Product

CAS:515835-69-5 535-83-1

Applications Trigonelline-D3 is an intermediate used in the synthesis of Trigonelline-d3 HCl (N-methyl-d3) (T794052), which …

Formula:

C₇H₄D₃NO₂•xH₂O

Color and Shape:

Neat

Molecular weight:

140.151802

Ref: TR-T794001

50mg 252.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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25-Deacetyl-23-acetyl Rifampicin (>85%)

Controlled Product

CAS:1416773-23-3

Stability Hygroscopic Applications 25-Deacetyl-23-acetyl Rifampicin is a structural isomer, and impurity, of Rifampicin (R508000), a …

Formula:

C₄₃H₅₈N₄O₁₂

Purity:

>85%

Color and Shape:

Neat

Molecular weight:

822.94

Ref: TR-D198200

25mg		2,074.00 €
2500µg		320.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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D,L-Trihexyphenidyl Hydrochloride-D11

Controlled Product

CAS:144-11-6 52-49-3

Formula:

C₂₀H₂₁D₁₁ClNO

Color and Shape:

Off White Solid

Molecular weight:

348.99

Ref: TR-T795002

1mg		329.00 €
25mg		3,514.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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OP-1118

Controlled Product

CAS:1030825-28-5

Applications OP-1118 is a major metabolite of Fidaxomicin (F335400). References Babakhani, F., et al.: J. …

Formula:

C₄₈H₆₈Cl₂O₁₇

Color and Shape:

Neat

Molecular weight:

987.95

Ref: TR-O662000

5mg		362.00 €
50mg		2,453.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Digoxigenin Bisdigitoxoside

Controlled Product

CAS:5297-05-2

Stability Hygroscopic Applications A metabolite of Digoxin (Dx) (D446575). Not a dangerous good if item …

Formula:

C₃₅H₅₄O₁₁

Color and Shape:

Neat

Molecular weight:

650.80

Ref: TR-D446500

1mg		224.00 €
10mg		1,270.00 €
25mg		2,251.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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(S)-Baclofen

Controlled Product

CAS:66514-99-6

Applications S-Enantiomer of Baclofen. Specific GABA-B receptor agonist. Muscle relaxant (skeletal). Not a dangerous good …

Formula:

C₁₀H₁₂ClNO₂

Color and Shape:

Neat

Molecular weight:

213.66

Ref: TR-B107995

10mg		274.00 €
25mg		527.00 €
50mg		933.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Acetaminophen Glutathione Disodium Salt

CAS:64889-81-2 79032-41-0

Applications Acetaminophen Glutathione Disodium Salt is a metabolite of Acetaminophen (A161220), an analgesic and antipyretic …

Formula:

C₁₈H₂₂N₄Na₂O₈S

Color and Shape:

White To Brown

Molecular weight:

500.43

Ref: TR-A161223

1mg		313.00 €
10mg		2,003.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Δ4-Pregnen-20α-ol-3-one

Controlled Product

CAS:145-14-2

Impurity Progesterone EP Impurity B Applications Δ4-Pregnen-20α-ol-3-one (Progesterone EP Impurity B) is the main metabolite …

Formula:

C₂₁H₃₂O₂

Color and Shape:

Off White Solid

Molecular weight:

316.48

Ref: TR-P712215

5mg		315.00 €
50mg		2,195.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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1-Methyl-4-nitro-3-propylpyrazole-5-carboxamide

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1-Methyl-4-nitro-3-propylpyrazole-5-carboxamide

Controlled Product

CAS:139756-01-7

Applications Intermediate in the production of Sildenafil. References Terrett, N., et al.: Bioorg. Med. Chem. …

Formula:

C₈H₁₂N₄O₃

Color and Shape:

Neat

Molecular weight:

212.21

Ref: TR-M320535

25mg		269.00 €
250mg		1,857.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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1,6’-Di-HABA Kanamycin A Sulfate

Controlled Product

CAS:197909-67-4

Stability Hygroscopic Applications Kanamycin (K137500) derivative as synthetic byproduct of Amikacin (A578500). References Kawaguchi, H., …

Formula:

C₂₆H₅₀N₆O₁₅•xH₂SO₄

Color and Shape:

Neat

Molecular weight:

686.719807

Ref: TR-D446385

5mg		2,682.00 €
500µg		366.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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N-Acetyl Sulfamethazine

Controlled Product

CAS:100-90-3

Applications The main metabolite of Sulfamethazine. References Poul, N., et al.: Biochem. J., 136, 1039 …

Formula:

C₁₄H₁₆N₄O₃S

Color and Shape:

Off-White

Molecular weight:

320.37

Ref: TR-A187850

5mg		270.00 €
10mg		341.00 €
25mg		830.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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Formoterol EP Impurity B

CAS:1224588-66-2

Formula:

C₁₈H₂₂N₂O₄

Color and Shape:

Neat

Molecular weight:

330.378

Ref: TR-F693440

1mg		80.00 €
5mg		281.00 €

Estimated delivery in United States, on Monday 28 Oct 2024

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