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Labelled

Our labeled active pharmaceutical ingredient (API) standards provide laboratories with precise and reliable tools for quantitative analysis. These standards, marked with isotopes such as deuterium or 13C, ensure accurate internal calibration and correct for matrix effects in complex samples. This leads to more consistent and reproducible results, essential for drug development and regulatory compliance. By using our labeled API standards,laboratories can enhance the accuracy of their analytical methods and streamline validation processes.

129138-58-5

(±)-Clenbuterol D9 (trimethylD9)

129138-58-5
110952-70-0

(±)-Cotinine D3 (N-methyl D3)

110952-70-0
350818-68-7

(±)-Cotinine-2,4,5,6 D4 (pyridine D4)

350818-68-7
NA

(S)-(-)-Carbidopa D3 H2O (ring D3)

NA
352431-55-1

Chloroadamantane-1 D15

352431-55-1
68165-57-1

4-Cholesten-3-one-4-13C

68165-57-1
NA

5alpha-Cholanic Acid-3beta-ol-23,23 D2

NA
1182005-25-9

5alpha-Cholest-7-en-3beta-ol-1,2,5,6alpha D4

1182005-25-9
NA

5alpha-Cholestan-3alpha-ol-2,2,3,4,4 D5

NA
NA

5alpha-Cholestan-3beta-ol-2,2,3,4,4 D5

NA
NA

5beta-Cholestan-3alpha-ol-2,2,3,4,4 D5

NA
NA

5-Cholesten-24(RS)-ethyl-3beta-ol-25,26,26,26,27,27,27 D7

NA
NA

5-Cholesten-24(RS)-methyl D3-3beta-ol

NA
72238-85-8

Caffeine D9 (1,3,7-trimethyl D9)

72238-85-8
1132662-08-8

Capecitabine D11 (pentyl D11)

1132662-08-8
58-94-6

Chlorothiazide

58-94-6
1219804-16-6

Carbamazepine-10,11-epoxide D10

1219804-16-6
1219802-95-5

Carboxytolbutamide D9 (butyl D9)

1219802-95-5
544686-21-7

Celecoxib D7 (tolyl D7)

544686-21-7
52918-92-0

Chenodeoxycholic Acid-24-13C

52918-92-0