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Active pharmaceutical ingredient (API) impurities for research

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BrandProduct dataPurityPrice rangeEstimated delivery
Biosynth logo
[9-Glycine]desmopressin
REF: 3D-IG173262		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
2-Butyl-3-(3,5-diiodo-4-hydroxybenzoyl)benzofuran
REF: 3D-IB19486CAS: 1951-26-4 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
Diclofenac monobromo impurity, sodium salt
REF: 3D-ID21714CAS: 127792-45-4 		Min. 95%To inquireMon 13 Jan 25
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4-Methyl-5-[(2-aminoethyl)thiomethyl]imidazole dihydrochloride
REF: 3D-IM58265CAS: 38603-72-4 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
Solifenacin impurity C
REF: 3D-IS167451CAS: 1534326-81-2 		Min. 95 Area-%To inquireMon 13 Jan 25
Biosynth logo
3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
REF: 3D-IE23102CAS: 70381-58-7 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
(2R)-2-(3,4-Dimethoxyphenyl)-5-[2-(3,4-dimethoxyphenyl)ethyl-methylamino]-2-isopropylpentanenitrile hydrochloride
REF: 3D-ID28684CAS: 38176-02-2 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
Torasemide Impurity E
REF: 3D-FT176082CAS: 72810-57-2 		Min. 95%136.00 €~569.00 €Mon 13 Jan 25
Biosynth logo
Benserazide EP Impurity B hydrochloride
REF: 3D-IB183713		Min. 95%813.00 €~4,405.00 €Mon 13 Jan 25
Biosynth logo
Cefazolinamide
REF: 3D-IC183354CAS: 2410652-70-7 		Min. 95%364.00 €~2,898.00 €Mon 13 Jan 25
Biosynth logo
Valdecoxib impurity I
REF: 3D-FA161770CAS: 1373038-59-5 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
Piperacillin impurity N
REF: 3D-IP183355CAS: 2170771-53-4 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
L-Piperacillin
REF: 3D-IP183358		Min. 95%To inquireMon 13 Jan 25
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N-(1-Oxobutyl)-N-[[2'-(2H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-valine
REF: 3D-IO28664CAS: 952652-79-8 		Min. 95%248.00 €~1,449.00 €Mon 13 Jan 25
Biosynth logo
Losartan azide
REF: 3D-IL183331CAS: 727718-93-6 		Min. 95%138.00 €~801.00 €Mon 13 Jan 25
Biosynth logo
Levothyroxine EP impurity B
REF: 3D-IL183329CAS: 1628720-66-0 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
a-(Aminocarbonyl)-4-[2-(5-ethyl-2-pyridinyl)ethoxy]benzeneethanesulfonic acid
REF: 3D-IA27057CAS: 625853-73-8 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
Clarithromycin-N-methyl-d3
REF: 3D-IC183141CAS: 959119-22-3 		Min. 95%341.00 €~2,296.00 €Mon 13 Jan 25
Biosynth logo
(5aR,10aR)-Tetrahydro-3H,5H,8H,10H-bisthiazolo[3,4-a:3',4'-d]pyrazine-5,10-dione
REF: 3D-IT145578CAS: 72744-67-3 		Min. 95%To inquireMon 13 Jan 25
Biosynth logo
1,1'-[Hydroxypropane-1,3-diylbis(oxy-2,1-phenylene)]bis(3-phenylpropan-1-one)
REF: 3D-IH63819CAS: 1329643-40-4 		Min. 95%400.00 €~2,551.00 €Mon 13 Jan 25
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[9-Glycine]desmopressin
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[9-Glycine]desmopressin

9-Glycine Desmopressin is a drug product that has been custom synthesized for use in research …
Purity:
Min. 95%

Ref: 3D-IG173262

100mgTo inquire
Estimated delivery in United States, on Monday 13 Jan 2025
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2-Butyl-3-(3,5-diiodo-4-hydroxybenzoyl)benzofuran
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2-Butyl-3-(3,5-diiodo-4-hydroxybenzoyl)benzofuran

CAS:1951-26-4
2-Butyl-3-(3,5-diiodo-4-hydroxybenzoyl)benzofuran is a benzofuran. It is a yellow solid that can be dissolved in water …
Formula:
C19H16I2O3
Purity:
Min. 95%
Molecular weight:
546.14 g/mol

Ref: 3D-IB19486

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Diclofenac monobromo impurity, sodium salt
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Diclofenac monobromo impurity, sodium salt

CAS:127792-45-4
Diclofenac monobromo impurity, sodium salt is a drug product that is used as an analytical …
Formula:
C14H10BrClNNaO2
Purity:
Min. 95%
Molecular weight:
362.58 g/mol

Ref: 3D-ID21714

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4-Methyl-5-[(2-aminoethyl)thiomethyl]imidazole dihydrochloride
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4-Methyl-5-[(2-aminoethyl)thiomethyl]imidazole dihydrochloride

CAS:38603-72-4
4-Methyl-5-[(2-aminoethyl)thiomethyl]imidazole dihydrochloride is a synthetic drug product that has been purified to high purity. This …
Formula:
C7H13N3S·2HCl
Purity:
Min. 95%
Molecular weight:
244.19 g/mol

Ref: 3D-IM58265

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Estimated delivery in United States, on Monday 13 Jan 2025
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Solifenacin impurity C
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Solifenacin impurity C

CAS:1534326-81-2
Solifenacin impurity C is an impurity that is found in the drug product Solifenacin. It …
Formula:
C31H28N2O
Purity:
Min. 95 Area-%
Color and Shape:
White Powder
Molecular weight:
444.57 g/mol

Ref: 3D-IS167451

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Estimated delivery in United States, on Monday 13 Jan 2025
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3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
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3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

CAS:70381-58-7
3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one is a research and development impurity standard. It is used as a pharmacopoeia and …
Formula:
C11H16N2O
Purity:
Min. 95%
Molecular weight:
192.26 g/mol

Ref: 3D-IE23102

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(2R)-2-(3,4-Dimethoxyphenyl)-5-[2-(3,4-dimethoxyphenyl)ethyl-methylamino]-2-isopropylpentanenitril…
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(2R)-2-(3,4-Dimethoxyphenyl)-5-[2-(3,4-dimethoxyphenyl)ethyl-methylamino]-2-isopropylpentanenitrile hydrochloride

CAS:38176-02-2
(2R)-2-(3,4-Dimethoxyphenyl)-5-[2-(3,4-dimethoxyphenyl)ethyl-methylamino]-2-isopropylpentanenitrile hydrochloride (ZD4054) is a drug that has been shown to be sensitive to the …
Formula:
C27H39ClN2O4
Purity:
Min. 95%
Molecular weight:
491.06 g/mol

Ref: 3D-ID28684

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Estimated delivery in United States, on Monday 13 Jan 2025
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Torasemide Impurity E
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Torasemide Impurity E

CAS:72810-57-2
Torasemide Impurity E is a drug product that belongs to the group of impurities. It …
Formula:
C15H17N3O4S
Purity:
Min. 95%
Molecular weight:
335.38 g/mol

Ref: 3D-FT176082

5mg136.00 €
10mg189.00 €
25mg273.00 €
50mg400.00 €
100mg569.00 €
Estimated delivery in United States, on Monday 13 Jan 2025
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Benserazide EP Impurity B hydrochloride
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Benserazide EP Impurity B hydrochloride

Please enquire for more information about Benserazide EP Impurity B hydrochloride including the price, delivery …
Formula:
C17H21N3O8•HCl
Purity:
Min. 95%
Molecular weight:
431.83 g/mol

Ref: 3D-IB183713

1mg813.00 €
2mg1,276.00 €
5mg2,667.00 €
10mg4,405.00 €
Estimated delivery in United States, on Monday 13 Jan 2025
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Cefazolinamide
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Cefazolinamide

CAS:2410652-70-7
Please enquire for more information about Cefazolinamide including the price, delivery time and more detailed …
Formula:
C14H15N9O3S3
Purity:
Min. 95%
Molecular weight:
453.5 g/mol

Ref: 3D-IC183354

1mg364.00 €
5mg801.00 €
10mg1,160.00 €
25mg2,029.00 €
50mg2,898.00 €
Estimated delivery in United States, on Monday 13 Jan 2025
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Valdecoxib impurity I
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Valdecoxib impurity I

CAS:1373038-59-5
Valdecoxib impurity I is a synthetic compound that is used as an impurity standard for …
Formula:
C16H15N3O5S2
Purity:
Min. 95%
Molecular weight:
393.44 g/mol

Ref: 3D-FA161770

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Piperacillin impurity N
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Piperacillin impurity N

CAS:2170771-53-4
Please enquire for more information about Piperacillin impurity N including the price, delivery time and …
Formula:
C46H54N10O14S2
Purity:
Min. 95%
Molecular weight:
1,035.11 g/mol

Ref: 3D-IP183355

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L-Piperacillin
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L-Piperacillin

Please enquire for more information about L-Piperacillin including the price, delivery time and more detailed …
Formula:
C23H27N5O7S
Purity:
Min. 95%
Molecular weight:
517.56 g/mol

Ref: 3D-IP183358

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N-(1-Oxobutyl)-N-[[2'-(2H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-valine
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N-(1-Oxobutyl)-N-[[2'-(2H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-valine

CAS:952652-79-8
N-(1-Oxobutyl)-N-[[2'-(2H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-valine (GW1929) is a potent vasodilator that is used for the treatment of hypertension. It …
Formula:
C23H27N5O3
Purity:
Min. 95%
Color and Shape:
White Powder
Molecular weight:
421.49 g/mol

Ref: 3D-IO28664

1mg248.00 €
2mg364.00 €
5mg517.00 €
10mg801.00 €
25mg1,449.00 €
Estimated delivery in United States, on Monday 13 Jan 2025
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Losartan azide
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Losartan azide

CAS:727718-93-6
Please enquire for more information about Losartan azide including the price, delivery time and more …
Formula:
C22H22ClN9
Purity:
Min. 95%
Molecular weight:
447.93 g/mol

Ref: 3D-IL183331

1mg138.00 €
2mg194.00 €
5mg310.00 €
10mg453.00 €
25mg801.00 €
Estimated delivery in United States, on Monday 13 Jan 2025
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Levothyroxine EP impurity B
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Levothyroxine EP impurity B

CAS:1628720-66-0
Please enquire for more information about Levothyroxine EP impurity B including the price, delivery time …
Formula:
C15H11ClI3NO4
Purity:
Min. 95%
Molecular weight:
685.42 g/mol

Ref: 3D-IL183329

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a-(Aminocarbonyl)-4-[2-(5-ethyl-2-pyridinyl)ethoxy]benzeneethanesulfonic acid
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a-(Aminocarbonyl)-4-[2-(5-ethyl-2-pyridinyl)ethoxy]benzeneethanesulfonic acid

CAS:625853-73-8
a-(Aminocarbonyl)-4-[2-(5-ethyl-2-pyridinyl)ethoxy]benzeneethanesulfonic acid is an analytical standard that is used in the drug development process. It …
Formula:
C18H22N2O5S
Purity:
Min. 95%
Molecular weight:
378.44 g/mol

Ref: 3D-IA27057

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Clarithromycin-N-methyl-d3
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Clarithromycin-N-methyl-d3

CAS:959119-22-3
Please enquire for more information about Clarithromycin-N-methyl-d3 including the price, delivery time and more detailed …
Formula:
C38H66D3NO13
Purity:
Min. 95%
Molecular weight:
750.97 g/mol

Ref: 3D-IC183141

1mg341.00 €
2mg455.00 €
5mg711.00 €
10mg1,021.00 €
25mg2,296.00 €
Estimated delivery in United States, on Monday 13 Jan 2025
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(5aR,10aR)-Tetrahydro-3H,5H,8H,10H-bisthiazolo[3,4-a:3',4'-d]pyrazine-5,10-dione
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(5aR,10aR)-Tetrahydro-3H,5H,8H,10H-bisthiazolo[3,4-a:3',4'-d]pyrazine-5,10-dione

CAS:72744-67-3
(5aR,10aR)-Tetrahydro-3H,5H,8H,10H-bisthiazolo[3,4-a:3',4'-d]pyrazine-5,10-dione is a drug product that is an impurity standard for the API (Active Pharmaceutical …
Formula:
C8H10N2O42S2
Purity:
Min. 95%
Molecular weight:
870.29 g/mol

Ref: 3D-IT145578

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1,1'-[Hydroxypropane-1,3-diylbis(oxy-2,1-phenylene)]bis(3-phenylpropan-1-one)
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1,1'-[Hydroxypropane-1,3-diylbis(oxy-2,1-phenylene)]bis(3-phenylpropan-1-one)

CAS:1329643-40-4
1,1'-[Hydroxypropane-1,3-diylbis(oxy-2,1-phenylene)]bis(3-phenylpropan-1-one) is an analytical standard for HPLC. It is a natural and synthetic metabolite of …
Formula:
C33H32O5
Purity:
Min. 95%
Molecular weight:
508.6 g/mol

Ref: 3D-IH63819

1mg400.00 €
2mg569.00 €
5mg949.00 €
10mg1,531.00 €
25mg2,551.00 €
Estimated delivery in United States, on Monday 13 Jan 2025
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