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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
TRC logo
4-Epi Doxycycline (>70%)
REF: TR-E585900CAS: 6543-77-7 		>70%535.00 €~6,651.00 €Mon 14 Apr 25
TRC logo
(R,S)-Nornicotine-d4 (100 ug/mL in Methanol)
REF: TR-KIT0562CAS: 66148-18-3 		- - -611.00 €Mon 14 Apr 25
TRC logo
Fluvoxamine Maleic Acid Monoamide (Fluvoxamine Maleate Impurity)
REF: TR-F603510CAS: 1076198-14-5 		- - -295.00 €~1,950.00 €Mon 14 Apr 25
TRC logo
2-Hydroxyphenylacetic Acid-d4 Trifluoromethanesulfonate
REF: TR-H949587		- - -256.00 €~1,921.00 €Mon 14 Apr 25
TRC logo
DL-threo-Droxidopa-d3 Hydrochloride Salt Hydrate
REF: TR-D689954CAS: 3916-18-5 		- - -230.00 €~1,516.00 €Mon 14 Apr 25
TRC logo
(R)-Methotrexate-d3
REF: TR-M260667CAS:
- - -348.00 €~2,218.00 €Mon 14 Apr 25
TRC logo
Alpha-Phenyllongifolol
REF: TR-P335530CAS: 946513-19-5 		- - -1,689.00 €Mon 14 Apr 25
TRC logo
(S)-Apomorphine Hydrochloride
REF: TR-A727505CAS: 41035-30-7 		- - -287.00 €~1,566.00 €Mon 14 Apr 25
TRC logo
Almotriptan Dimer Impurity
REF: TR-A575215CAS: 1330166-13-6 		- - -372.00 €~2,528.00 €Mon 14 Apr 25
TRC logo
4-Epi-14,15-Dehydrated Pimecrolimus
REF: TR-E588040CAS: 137071-32-0 		- - -1,404.00 €~2,472.00 €Mon 14 Apr 25
TRC logo
Gliclazide Impurity D
REF: TR-G409885CAS: 1136426-19-1 		- - -399.00 €~1,560.00 €Mon 14 Apr 25
TRC logo
(D,L)-erythro-alpha-Phenyl-2-piperidineacetamide
REF: TR-P335975CAS: 50288-63-6 		- - -340.00 €~2,186.00 €Mon 14 Apr 25
TRC logo
Afatinib N-Oxide
REF: TR-A355330		- - -2,356.00 €Mon 14 Apr 25
TRC logo
3-[[[3-(Aminomethyl)-5-methyl-1-oxohexyl]amino]methyl]-5-methyl-hexanoic Acid
REF: TR-A631018CAS: 1486961-58-3 		- - -572.00 €~2,058.00 €Mon 14 Apr 25
TRC logo
Ximelagatran-d11
REF: TR-X745002CAS: 192939-46-1 		- - -415.00 €~2,843.00 €Mon 14 Apr 25
TRC logo
2-Amino-3-benzoyl-Alpha-oxo-benzeneacetic Acid Sodium Salt
REF: TR-A593710CAS: 126849-31-8 		- - -303.00 €~2,119.00 €Mon 14 Apr 25
TRC logo
2-Fluorobenzoic Acid-d4
REF: TR-F588382CAS: 646502-89-8 		- - -247.00 €~1,667.00 €Mon 14 Apr 25
TRC logo
4-(3-Methylphenyl)-2H-pyrido[4,3-e]-1,2,4-thiadiazin-3(4H)-one 1,1-Dioxide Sodium Salt (Torsemide im
REF: TR-M325901CAS: 72810-61-8 		- - -343.00 €~1,595.00 €Mon 14 Apr 25
TRC logo
Oseltamivir citric acid dehydrate
REF: TR-O701050CAS: 2734402-31-2 		- - -1,568.00 €Mon 14 Apr 25
TRC logo
(R)-Apomorphine-10-sulfate
REF: TR-A727515CAS: 1330267-27-0 		- - -270.00 €~1,801.00 €Mon 14 Apr 25
discount label
4-Epi Doxycycline (>70%)
TRC logo
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4-Epi Doxycycline (>70%)

Controlled Product
CAS:6543-77-7
Impurity Doxycycline EP Impurity C Stability Light Sensitive, Unstable in Solution Applications An alternative to …
Formula:
C22H24N2O8
Purity:
>70%
Color and Shape:
Yellow Solid
Molecular weight:
444.43

Ref: TR-E585900

1mg868.00 €
10mg6,651.00 €
500µg535.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
(R,S)-Nornicotine-d4 (100 ug/mL in Methanol)
TRC logo
+ info

(R,S)-Nornicotine-d4 (100 ug/mL in Methanol)

Controlled Product
CAS:66148-18-3
Formula:
C9H4H8N2
Color and Shape:
Single Solution
Molecular weight:
152.23

Ref: TR-KIT0562

5x1ml611.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
Fluvoxamine Maleic Acid Monoamide (Fluvoxamine Maleate Impurity)
TRC logo
+ info

Fluvoxamine Maleic Acid Monoamide (Fluvoxamine Maleate Impurity)

Controlled Product
CAS:1076198-14-5
Applications An impurity of Fluvoxamine maleate tablets.
Formula:
C19H23F3N2O5
Color and Shape:
Neat
Molecular weight:
416.39

Ref: TR-F603510

1mg295.00 €
10mg1,950.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
2-Hydroxyphenylacetic Acid-d4 Trifluoromethanesulfonate
TRC logo
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2-Hydroxyphenylacetic Acid-d4 Trifluoromethanesulfonate

Controlled Product
Applications 2-Hydroxyphenylacetic Acid-d4 Trifluoromethanesulfonate is an protected intermediate in the synthesis of metabolites of Diclofenac …
Formula:
C9H3D4F3O5S
Color and Shape:
Neat
Molecular weight:
288.23

Ref: TR-H949587

5mg256.00 €
25mg734.00 €
100mg1,921.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
DL-threo-Droxidopa-d3 Hydrochloride Salt Hydrate
TRC logo
+ info

DL-threo-Droxidopa-d3 Hydrochloride Salt Hydrate

Controlled Product
CAS:3916-18-5
Applications DL-threo-Droxidopa-d3 Hydrochloride Salt Hydrate is an isotope labeled compound of DL-threo-Droxidopa (D689950), a synthetic …
Formula:
C9H8D3NO5•HCl•x(H2O)
Color and Shape:
Neat
Molecular weight:
216.2136461802

Ref: TR-D689954

1mg230.00 €
10mg1,516.00 €
2500µg492.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
(R)-Methotrexate-d3
TRC logo
+ info

(R)-Methotrexate-d3

Controlled Product
CAS:1786417-03-5 51865-79-3
Formula:
C20H19D3N8O5
Color and Shape:
Neat
Molecular weight:
457.46

Ref: TR-M260667

5mg2,218.00 €
500µg348.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
Alpha-Phenyllongifolol
TRC logo
+ info

Alpha-Phenyllongifolol

Controlled Product
CAS:946513-19-5
Applications α-Phenyllongifolol is an impurity in the synthesis of Longifolene (L469455) which is a constituent …
Formula:
C21H30O
Color and Shape:
Neat
Molecular weight:
298.46

Ref: TR-P335530

10mg1,689.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
(S)-Apomorphine Hydrochloride
TRC logo
+ info

(S)-Apomorphine Hydrochloride

Controlled Product
CAS:41035-30-7
Formula:
C17H17NO2·HCl
Color and Shape:
Light Grey Solid
Molecular weight:
303.78

Ref: TR-A727505

1mg287.00 €
5mg993.00 €
10mg1,566.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
Almotriptan Dimer Impurity
TRC logo
+ info

Almotriptan Dimer Impurity

CAS:1330166-13-6
Formula:
C30H41N5O2S
Color and Shape:
Off White Solid
Molecular weight:
535.74

Ref: TR-A575215

5mg2,528.00 €
500µg372.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
4-Epi-14,15-Dehydrated Pimecrolimus
TRC logo
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4-Epi-14,15-Dehydrated Pimecrolimus

Controlled Product
CAS:137071-32-0
Formula:
C43H66ClNO10
Color and Shape:
Neat
Molecular weight:
792.44

Ref: TR-E588040

5mg2,472.00 €
2500µg1,404.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
Gliclazide Impurity D
TRC logo
+ info

Gliclazide Impurity D

CAS:1136426-19-1
Applications Gliclazide Impurity D is a manufacturing impurity of the drug Gliclazide (G409875) which is …
Formula:
C15H20N2O3S
Color and Shape:
Off White
Molecular weight:
308.3959

Ref: TR-G409885

10mg399.00 €
25mg837.00 €
50mg1,560.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
(D,L)-erythro-alpha-Phenyl-2-piperidineacetamide
TRC logo
+ info

(D,L)-erythro-alpha-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

50mg340.00 €
500mg2,186.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
Afatinib N-Oxide
TRC logo
+ info

Afatinib N-Oxide

Controlled Product
Applications Afatinib N-Oxide is a derivative of Afatinib {BIBW 2992) (B377000), an aminocrotonylamino-substituted quinazoline derivative …
Formula:
C24H25ClFN5O4
Color and Shape:
White Solid
Molecular weight:
501.94

Ref: TR-A355330

25mg2,356.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
3-[[[3-(Aminomethyl)-5-methyl-1-oxohexyl]amino]methyl]-5-methyl-hexanoic Acid
TRC logo
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3-[[[3-(Aminomethyl)-5-methyl-1-oxohexyl]amino]methyl]-5-methyl-hexanoic Acid

Controlled Product
CAS:1486961-58-3
Applications 3-​[[[3-​(Aminomethyl)​-​5-​methyl-​1-​oxohexyl]​amino]​methyl]​-​5-​methyl-hexanoic Acid is an intermediate in synthesizing 4,9-Diisobutyl-1,6-diazecane-2,7-dione (D456300), an impurity of rac-Pregabalin (P704800) …
Formula:
C16H32N2O3
Color and Shape:
Neat
Molecular weight:
300.44

Ref: TR-A631018

5mg572.00 €
10mg1,066.00 €
25mg2,058.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
Ximelagatran-d11
TRC logo
+ info

Ximelagatran-d11

Controlled Product
CAS:192939-46-1
Stability Hygroscopic Applications An orally active direct thrombin inhibitor; prodrug of Melagatran. Antithrombotic. References Owens, …
Formula:
C24H24D11N5O5
Color and Shape:
Neat
Molecular weight:
484.63

Ref: TR-X745002

1mg415.00 €
10mg2,843.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
2-Amino-3-benzoyl-Alpha-oxo-benzeneacetic Acid Sodium Salt
TRC logo
+ info

2-Amino-3-benzoyl-Alpha-oxo-benzeneacetic Acid Sodium Salt

CAS:126849-31-8
Applications 2-Amino-3-benzoyl-α-oxo-benzeneacetic Acid Sodium Salt has anti-inflammatory activity. Impurity of Amfenac (A576500). References Walsh, D.A., …
Formula:
C15H10NNaO4
Color and Shape:
Neat
Molecular weight:
291.23

Ref: TR-A593710

5mg303.00 €
50mg2,119.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
2-Fluorobenzoic Acid-d4
TRC logo
+ info

2-Fluorobenzoic Acid-d4

Controlled Product
CAS:646502-89-8
Formula:
C7H4HFO2
Color and Shape:
Neat
Molecular weight:
144.14

Ref: TR-F588382

10mg247.00 €
100mg1,667.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
4-(3-Methylphenyl)-2H-pyrido[4,3-e]-1,2,4-thiadiazin-3(4H)-one 1,1-Dioxide Sodium Salt (Torsemide …
TRC logo
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4-(3-Methylphenyl)-2H-pyrido[4,3-e]-1,2,4-thiadiazin-3(4H)-one 1,1-Dioxide Sodium Salt (Torsemide im

CAS:72810-61-8
Stability Hygroscopic Applications An impurity of Torsemide.
Formula:
C13H11N3O3S
Color and Shape:
Off-White To Light Yellow
Molecular weight:
311.29

Ref: TR-M325901

5mg343.00 €
10mg580.00 €
50mg1,595.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
Oseltamivir citric acid dehydrate
TRC logo
+ info

Oseltamivir citric acid dehydrate

Controlled Product
CAS:2734402-31-2
Formula:
C22H32N2O9
Color and Shape:
Neat
Molecular weight:
468.5

Ref: TR-O701050

25mg1,568.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
discount label
(R)-Apomorphine-10-sulfate
TRC logo
+ info

(R)-Apomorphine-10-sulfate

Controlled Product
CAS:1330267-27-0
Formula:
C17H17NO5S
Color and Shape:
Neat
Molecular weight:
347.39

Ref: TR-A727515

1mg270.00 €
10mg1,801.00 €
Estimated delivery in United States, on Monday 14 Apr 2025
+ info
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