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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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BrandProduct dataPurityPrice rangeEstimated delivery
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Atorvastatin lactam phenanthrene calcium salt impurity
REF: 3D-IA18017CAS: 148127-12-2 		Min. 95%517.00 €~2,898.00 €Wed 19 Feb 25
Norethindrone Related Compound B CIII (Estr-4-ene-3,17-dione)
REF: 45-1470026CAS: 734-32-7 		- - -To inquireWed 19 Feb 25
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N-Succinyl-L-tyrosine
REF: 3D-IS27922CAS: 374816-32-7 		Min. 95%213.00 €~1,531.00 €Wed 19 Feb 25
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Acarbose EP Impurity G
REF: 3D-IA175642CAS: 1013621-73-2 		Min. 95%To inquireWed 19 Feb 25
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Atorvastatin 3-deoxyhept-2-enoic acid
REF: 3D-FA165520CAS: 1105067-93-3 		Min. 95%138.00 €~647.00 €Wed 19 Feb 25
Noroxymorphone Hydrochloride CII (4,5α-Epoxy-3,14-dihydroxymorphinan-6-one hydrochloride)
REF: 45-1473002CAS: 52446-24-9 		- - -To inquireWed 19 Feb 25
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Rosuvastatin EP impurity M calcium
REF: 3D-IR183834CAS: 847849-66-5 		Min. 95%64.00 €~801.00 €Wed 19 Feb 25
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Pramipexole EP Impurity C
REF: 3D-FP165425CAS: 1973461-14-1 		Min. 95%813.00 €~4,869.00 €Wed 19 Feb 25
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2-(2-Amino-5-bromobenzoyl)pyridine
REF: 3D-IA17613CAS: 1563-56-0 		Min. 95%To inquireWed 19 Feb 25
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N-[4-Cyano-3-(trifluoromethyl)phenyl]-2-methyloxirane-2-carboxamide
REF: 3D-IC58274CAS: 90357-51-0 		Min. 95%141.00 €~865.00 €Wed 19 Feb 25
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Empagliflozin S-furanose
REF: 3D-IE181148CAS: 1620758-32-8 		Min. 95%84.00 €~1,449.00 €Wed 19 Feb 25
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Methotrexate-1-monomethyl ester
REF: 3D-IM71454CAS: 66147-29-3 		Min. 95%153.00 €~1,160.00 €Wed 19 Feb 25
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4-(1-Hydroxy-1-methylethyl)-2-propyl-1[4-[2-(trityltetrazol-5-yl)phenyl]phenyl]methylimidazo-5-carboxylate (5-methyl-2-oxo-1,3-dioxo len-4-yl)methyl
REF: 3D-IH57932CAS: 144690-92-6 		Min. 95%68.00 €~1,047.00 €Wed 19 Feb 25
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Sumatriptan EP Impurity A
REF: 3D-FS175833CAS: 545338-89-4 		Min. 95%310.00 €~2,319.00 €Wed 19 Feb 25
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1-Bromo-3,5-dimethyladamantane
REF: 3D-IB06265CAS: 941-37-7 		Min. 95%136.00 €~801.00 €Wed 19 Feb 25
Trospium Chloride Related Compound A (Benzilic Acid)
REF: 45-1699311CAS: 76-93-7 		- - -To inquireWed 19 Feb 25
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Chlorthalidone impurity J
REF: 3D-IC171609CAS: 956-92-3 		Min. 95 Area-%104.00 €~865.00 €Wed 19 Feb 25
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Methyl 2-deoxy-D-ribopyranoside
REF: 3D-IM45442CAS: 863396-35-4 		Min. 95%179.00 €~2,892.00 €Wed 19 Feb 25
Zopiclone R-Isomer CIV ((-)-(5R)-6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate)
REF: 45-1729118CAS: 138680-08-7 		- - -To inquireWed 19 Feb 25
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7-Epi 10-desacetyl paclitaxel
REF: 3D-IE22703CAS: 78454-17-8 		Min. 95%To inquireWed 19 Feb 25
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Atorvastatin lactam phenanthrene calcium salt impurity
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Atorvastatin lactam phenanthrene calcium salt impurity

CAS:148127-12-2
Atorvastatin lactam phenanthrene calcium salt impurity is a high purity, custom synthesis drug product. It …
Formula:
C66H64CaF2N4O12
Purity:
Min. 95%
Molecular weight:
1,183.31 g/mol

Ref: 3D-IA18017

1mg801.00 €
2mg1,160.00 €
5mg1,855.00 €
10mg2,898.00 €
500µg517.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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Norethindrone Related Compound B CIII (Estr-4-ene-3,17-dione)

Controlled Product
CAS:734-32-7
Cyclanic, cyclenic or cycloterpenic ketones without other oxygen function not elsewhere specified or included
Formula:
C18H24O2
Color and Shape:
Powder
Molecular weight:
272.17763

Ref: 45-1470026

Estimated delivery in United States, on Wednesday 19 Feb 2025
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N-Succinyl-L-tyrosine
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N-Succinyl-L-tyrosine

CAS:374816-32-7
N-Succinyl-L-tyrosine is a synthetic compound that is used as an impurity standard for the determination …
Formula:
C13H15NO6
Purity:
Min. 95%
Color and Shape:
Light Blue To Blue Solid
Molecular weight:
281.26 g/mol

Ref: 3D-IS27922

1mg213.00 €
2mg341.00 €
5mg498.00 €
10mg813.00 €
25mg1,531.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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Acarbose EP Impurity G
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Acarbose EP Impurity G

CAS:1013621-73-2
Acarbose EP Impurity G is a pharmaceutical grade impurity that is used as a reference …
Purity:
Min. 95%

Ref: 3D-IA175642

10mgTo inquire
Estimated delivery in United States, on Wednesday 19 Feb 2025
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Atorvastatin 3-deoxyhept-2-enoic acid
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Atorvastatin 3-deoxyhept-2-enoic acid

CAS:1105067-93-3
Atorvastatin is a potent inhibitor of the enzyme HMG-CoA reductase, which is responsible for the …
Formula:
C33H33FN2O4
Purity:
Min. 95%
Color and Shape:
Powder
Molecular weight:
540.62 g/mol

Ref: 3D-FA165520

1mg138.00 €
2mg194.00 €
5mg310.00 €
10mg436.00 €
25mg647.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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Noroxymorphone Hydrochloride CII (4,5α-Epoxy-3,14-dihydroxymorphinan-6-one hydrochloride)

Controlled Product
CAS:52446-24-9
Alkaloids of opium and their derivatives, salts thereof, not elsewhere specified or included
Formula:
C16H18NO4Cl
Color and Shape:
Light Brown Powder
Molecular weight:
323.09244

Ref: 45-1473002

Estimated delivery in United States, on Wednesday 19 Feb 2025
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Rosuvastatin EP impurity M calcium
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Rosuvastatin EP impurity M calcium

CAS:847849-66-5
Please enquire for more information about Rosuvastatin EP impurity M calcium including the price, delivery …
Formula:
(C22H29N3O6S)2•Ca
Purity:
Min. 95%
Molecular weight:
967.1 g/mol

Ref: 3D-IR183834

2mg172.00 €
5mg248.00 €
10mg364.00 €
25mg517.00 €
50mg801.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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Pramipexole EP Impurity C
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Pramipexole EP Impurity C

CAS:1973461-14-1
Pramipexole EP Impurity C is a synthetic impurity that is used as an impurity standard …
Formula:
C20H32N6S2
Purity:
Min. 95%

Ref: 3D-FP165425

1mg813.00 €
2mg1,276.00 €
5mg2,551.00 €
10mg4,869.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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2-(2-Amino-5-bromobenzoyl)pyridine
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2-(2-Amino-5-bromobenzoyl)pyridine

CAS:1563-56-0
2-(2-Amino-5-bromobenzoyl)pyridine (2ABBP) is a chemical compound with the molecular formula C10H7BrN3. It is a glucuronide …
Formula:
C12H9BrN2O
Purity:
Min. 95%
Molecular weight:
277.12 g/mol

Ref: 3D-IA17613

10g172.00 €
25g248.00 €
50g363.00 €
100g518.00 €
250g863.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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N-[4-Cyano-3-(trifluoromethyl)phenyl]-2-methyloxirane-2-carboxamide
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N-[4-Cyano-3-(trifluoromethyl)phenyl]-2-methyloxirane-2-carboxamide

CAS:90357-51-0
N-[4-Cyano-3-(trifluoromethyl)phenyl]-2-methyloxirane-2-carboxamide (NUOX) is a potential anticancer agent that has been shown to have an acidic …
Formula:
C12H9F3N2O2
Purity:
Min. 95%
Color and Shape:
White Powder
Molecular weight:
270.21 g/mol

Ref: 3D-IC58274

10g141.00 €
25g198.00 €
50g308.00 €
100g495.00 €
250g865.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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Empagliflozin S-furanose
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Empagliflozin S-furanose

CAS:1620758-32-8
Empagliflozin S-furanose is a Custom synthesis drug product. It is an analytical standard with CAS …
Formula:
C23H27ClO7
Purity:
Min. 95%
Color and Shape:
Powder
Molecular weight:
450.91 g/mol

Ref: 3D-IE181148

1mg194.00 €
2mg310.00 €
5mg453.00 €
10mg711.00 €
25mg1,449.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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Methotrexate-1-monomethyl ester
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Methotrexate-1-monomethyl ester

CAS:66147-29-3
Methotrexate-1-monomethyl ester is an impurity found in methotrexate, a drug used to treat cancer and …
Formula:
C21H24N8O5
Purity:
Min. 95%
Molecular weight:
468.47 g/mol

Ref: 3D-IM71454

2mg172.00 €
5mg248.00 €
10mg364.00 €
25mg740.00 €
50mg1,160.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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4-(1-Hydroxy-1-methylethyl)-2-propyl-1[4-[2-(trityltetrazol-5-yl)phenyl]phenyl]methylimidazo-5-car…
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4-(1-Hydroxy-1-methylethyl)-2-propyl-1[4-[2-(trityltetrazol-5-yl)phenyl]phenyl]methylimidazo-5-carboxylate (5-methyl-2-oxo-1,3-dioxo len-4-yl)methyl

CAS:144690-92-6
5-methyl-2-oxo-1,3-dioxo-4-[(4-[2-(trityl)phenyl]phenyl)methylimidazo]-5-carboxylate is a drug that belongs to the group of angiotensin II receptor antagonists. The …
Formula:
C48H44N6O6
Purity:
Min. 95%
Color and Shape:
Solid
Molecular weight:
800.9 g/mol

Ref: 3D-IH57932

10g194.00 €
25g310.00 €
50g436.00 €
100g646.00 €
250g1,047.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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Sumatriptan EP Impurity A
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Sumatriptan EP Impurity A

CAS:545338-89-4
Sumatriptan EP Impurity A is a metabolite of sumatriptan, a drug product that is used …
Formula:
C27H37N5O2S
Purity:
Min. 95%
Molecular weight:
495.68 g/mol

Ref: 3D-FS175833

1mg310.00 €
2mg436.00 €
5mg740.00 €
10mg1,160.00 €
25mg2,319.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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1-Bromo-3,5-dimethyladamantane
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1-Bromo-3,5-dimethyladamantane

CAS:941-37-7
Intermediate in the synthesis of memantine
Formula:
C12H19Br
Purity:
Min. 95%
Molecular weight:
243.18 g/mol

Ref: 3D-IB06265

1kg801.00 €
50g136.00 €
100g198.00 €
250g342.00 €
500g505.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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Trospium Chloride Related Compound A (Benzilic Acid)

CAS:76-93-7
Carboxylic acids w/ alcohol function but w/o other oxygen function and their derivatives, nesoi
Formula:
C14H12O3
Color and Shape:
White Powder
Molecular weight:
228.07864

Ref: 45-1699311

Estimated delivery in United States, on Wednesday 19 Feb 2025
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Chlorthalidone impurity J
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Chlorthalidone impurity J

CAS:956-92-3
Chlorthalidone is a drug product that contains the impurity J. Chlorthalidone is an antihypertensive drug …
Formula:
C14H10ClNO2
Purity:
Min. 95 Area-%
Color and Shape:
White Off-White Powder
Molecular weight:
259.69 g/mol

Ref: 3D-IC171609

25mg194.00 €
50mg310.00 €
100mg437.00 €
250mg645.00 €
500mg865.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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Methyl 2-deoxy-D-ribopyranoside
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Methyl 2-deoxy-D-ribopyranoside

CAS:863396-35-4
Methyl 2-deoxy-D-ribopyranoside (2DDR) is a natural compound that can be found as an impurity in …
Formula:
C6H12O4
Purity:
Min. 95%
Color and Shape:
Powder
Molecular weight:
148.16 g/mol

Ref: 3D-IM45442

5g1,982.00 €
10g2,892.00 €
250mg179.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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discount label
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Zopiclone R-Isomer CIV ((-)-(5R)-6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl 4-methylpiperazine-1-carboxylate)

Controlled Product
CAS:138680-08-7
Lactams, nesoi
Formula:
C17H17ClN6O3
Color and Shape:
Light Brown Solid
Molecular weight:
388.10507

Ref: 45-1729118

Estimated delivery in United States, on Wednesday 19 Feb 2025
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7-Epi 10-desacetyl paclitaxel
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7-Epi 10-desacetyl paclitaxel

CAS:78454-17-8
7-Epi 10-desacetyl paclitaxel is a prodrug of paclitaxel. It has a similar mechanism of action …
Formula:
C45H49NO13
Purity:
Min. 95%
Color and Shape:
White Powder
Molecular weight:
811.87 g/mol

Ref: 3D-IE22703

5mg286.00 €
10mg420.00 €
25mg598.00 €
50mg854.00 €
100mg1,339.00 €
Estimated delivery in United States, on Wednesday 19 Feb 2025
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