Isotopically Labeled Compounds

Chemicals to which isotopes have been attached in order to label specific atoms. Isotopically labeled compounds are commonly used in synthetic chemistry, characterization techniques such as NMR, and biology.

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1,216 – 1,230 of 9,079 results

1,216

Medchemexpress LLC Taurocholic acid-d5 sodium | 2044276-13-1 | 98.0% | 542.72 g/mol | C26H39D5NNaO7S | 1 MG

Deuterium-labeled taurocholic acid sodium (taurocholic acid-d5 sodium) is a stable isotope internal standard designed for analytical and metabolomics workflows. Supplied as a small, high-purity sodium salt powder for laboratory research use only; not for human or veterinary use.

Deuterium-labeled (d5) internal standard for quantitative LC-MS/MS.
Suitable for metabolomics and targeted bile acid analysis.
High chemical purity (98.0%).
Supplied as a 1 mg powder vial for analytical use.
Sodium salt form for improved aqueous solubility and handling.

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1,217

Cayman Chemical FlufenamIc AcId-d4 1mg

An internal standard for the quantification of flufenamic acid by GC- or LC-MS

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1,218

Cayman Chemical -ClImbazole-d4 1mg

An internal standard for the quantification of climbazole by GC- or LC-MS

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1,219

Cambridge Isotope Laboratories SODIUM ACETATE (1,2-13C2, 99%), 5 G, 56374-56-2

SODIUM ACETATE (1,2-13C2, 99%), 5 G, 56374-56-2

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1,220

Cayman Chemical 13 S-HODE-d4 100ug

An internal standard for the quantification of 13-HODE by GC- or LC-MS

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1,221

Cambridge Isotope Laboratories PALMITIC ACID (2-13C, 99%), 1 G

PALMITIC ACID (2-13C, 99%), 1 G

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1,222

Medchemexpress LLC Itraconazole-d3 | 1217512-35-0 | MFCD34676907 | 99.6% | 10 MG

Itraconazole-d3 is a deuterium-labeled analog of itraconazole intended for research use as a tracer or internal standard in quantitative analyses. It retains the chemical characteristics of itraconazole and is suitable for analytical development, method validation, and tracer studies in mass spectrometry and NMR workflows.

Deuterium-labeled internal standard for quantitative analysis.
High purity (99.6%) suitable for analytical workflows.
Compatible with LC-MS, GC-MS, and NMR methods.
Suitable for method validation, tracer studies, and stability testing.
Small-scale solid quantity designed for analytical use.

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1,223

Cambridge Isotope Laboratories AMITRIPTYLINE:HCL (N,N-DIMETHYL-D6, 98%), 0.1 G, 203645-63-0

AMITRIPTYLINE:HCL (N,N-DIMETHYL-D6, 98%), 0.1 G, 203645-63-0

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1,224

Cambridge Isotope Laboratories Monomethyl phthalate (ring-1 2-13C2 dicarboxyl-13C2 99%) 100 ug/mL in MTBE 1 2 mL

Monomethyl phthalate (ring-1 2-13C2 dicarboxyl-13C2 99%) 100 ug/mL in MTBE 1 2 mL

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1,225

Cambridge Isotope Laboratories DEUTERIUM (D, 99.8%) (D2,99.6%+HD,0.4%), 250 L, 7782-39-0

DEUTERIUM (D, 99.8%) (D2,99.6%+HD,0.4%), 250 L, 7782-39-0

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1,226

Medchemexpress LLC Zofenopril-d5 | 00-00-0 | 99.9% | 434.58 g/mol | C22H18D5NO4S2 | 10 MG

Zofenopril-d5 is a deuterium-labeled analog of zofenopril, an angiotensin-converting enzyme (ACE) inhibitor. Supplied for research use only, it is intended as a stable isotope standard for analytical, metabolic, and pharmacokinetic studies, including mass spectrometry applications.

Deuterium-labeled (d5) analog for isotope studies.
High purity suitable for analytical applications (≈99.9%).
Molecular weight 434.58 g/mol.
Chemical formula C22H18D5NO4S2.
Target: angiotensin-converting enzyme (ACE).
Intended for research use only, not for human use.
Recommended storage: -20 °C (solid); -80 °C in solution for long-term storage.

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1,227

eMolecules (1-METHYLCYCLOPENTYL)METHANOL | 38502-28-2 | MFCD13184228 | 0.1g

AstaTech | (1-METHYLCYCLOPENTYL)METHANOL | 0.1g | 596576109 | 90940 | 95.000 | 38502-28-2 | MFCD13184228 | 114.188 | C7H14O

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1,228

Revvity Health Sciences Inc EXPRE³⁵S³⁵S Protein Labeling Mix, [³⁵S]-, 2mCi (74MBq), 50mM Tricine (pH 7.4), 10mM 2-mercaptoethanol

EXPRE³⁵S³⁵S Protein Labeling Mix, [³⁵S]-, 2mCi (74MBq), 50mM Tricine (pH 7.4), 10mM 2-mercaptoethanol

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1,229

Cayman Chemical AmbrIsentn-d3 1mg

An internal standard for the quantification of ambrisentan by GC- or LC-MS

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1,230

Cayman Chemical TIprnavIr-d4 1mg

An internal standard for the quantification of tipranavir by GC- or LC-MS

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Isotopically Labeled Compounds

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Medchemexpress LLC Taurocholic acid-d5 sodium | 2044276-13-1 | 98.0% | 542.72 g/mol | C26H39D5NNaO7S | 1 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Itraconazole-d3 | 1217512-35-0 | MFCD34676907 | 99.6% | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Zofenopril-d5 | 00-00-0 | 99.9% | 434.58 g/mol | C22H18D5NO4S2 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Taurocholic acid-d5 sodium | 2044276-13-1 | 98.0% | 542.72 g/mol | C26H39D5NNaO7S | 1 MG

Medchemexpress LLC Itraconazole-d3 | 1217512-35-0 | MFCD34676907 | 99.6% | 10 MG

Medchemexpress LLC Zofenopril-d5 | 00-00-0 | 99.9% | 434.58 g/mol | C22H18D5NO4S2 | 10 MG