Drug Standards

Standard-value, reference solutions designed to facilitate accurate chromatographic and mass spectrometry-based toxicology and forensic detection of drugs and pharmaceuticals.

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1,576 – 1,590 of 11,234 results

1,576

Enzo Life Sciences Methotrexate (1g). CAS: 133073-73-1

Folic acid antagonist. Potent inhibitor of dihydrofolate reductase. Induces apoptosis. Inhibits DNA synthesis. Anticancer agent. Alternative name: (+)-Amethopterin, 4-Amino-10-methylfolic acid, Methylaminopterin, MTX. Purity: ≥98% (HPLC). Appearance: Yellow powder. Solubility: Soluble in alkaline solution; insoluble in water, 100% ethanol or ether. Long Term Storage: +4°C.

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1,577

Sigma Aldrich Fine Chemicals Biosciences Human immunoglobulin for electrophoresis BRP European Pharmacopoeia (EP) Reference Standard | 9007-83-4 |

Human immunoglobulin for electrophoresis BRP European Pharmacopoeia (EP) Reference Standard | 9007-83-4 |

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1,578

Sigma Aldrich Fine Chemicals Biosciences Galantamine natural for system suitability European Pharmacopoeia (EP) Reference Standard | 1953-04-4 | MFCD26142877 |

Galantamine natural for system suitability European Pharmacopoeia (EP) Reference Standard | Mol Wt: 368.27 | 1953-04-4 | MFCD26142877 |

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1,579

Sigma Aldrich Fine Chemicals Biosciences Simethicone United States Pharmacopeia (USP) Reference Standard | 8050-81-5 | 50G

Simethicone United States Pharmacopeia (USP) Reference Standard | 8050-81-5 | 50G

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1,580

Sigma Aldrich Fine Chemicals Biosciences Almotriptan Related Compound D United States Pharmacopeia (USP) Reference Standard | 603137-43-5 (free base) | 15MG

Almotriptan Related Compound D United States Pharmacopeia (USP) Reference Standard | Mol Wt: 387.92 | 603137-43-5 (free base) | 15MG

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1,581

Sigma Aldrich Fine Chemicals Biosciences Ramipril impurity C European Pharmacopoeia (EP) Reference Standard | 99742-35-5 |

Ramipril impurity C European Pharmacopoeia (EP) Reference Standard | Mol Wt: 422.56 | 99742-35-5 |

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1,582

Sigma Aldrich Fine Chemicals Biosciences Butalbital solution 1.0 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant(R) | Mol Wt: 224.26 | 77-26-9 | MFCD00056089 | 1ML

Butalbital solution 1.0 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant(R) | 77-26-9 | MFCD00056089 | 1ML

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1,583

Sigma Aldrich Fine Chemicals Biosciences Plastic additive 6 United States Pharmacopeia (USP) Reference Standard | 27676-62-6 | MFCD00134700 | 200MG

Plastic additive 6 United States Pharmacopeia (USP) Reference Standard | Mol Wt: 784.08 | 27676-62-6 | MFCD00134700 | 200MG

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1,584

Medchemexpress LLC Cabamiquine succinate | 2444781-71-7 | 99.8% | 580.65 g·mol-1 | C31H37FN4O6 | 1 ML

Cabamiquine succinate is the succinate salt of cabamiquine (DDD107498), an orally active antimalarial research compound. Supplied as a 10 mM solution in DMSO in a 1 mL vial, the product is intended for in vitro pharmacology and antimalarial studies. Handle according to the safety data sheet and institutional guidelines.

Supplied as a 10 mM solution in DMSO.
High purity (99.8%) suitable for research use.
Succinate salt form of cabamiquine.
Molecular weight 580.65 g·mol-1 and formula C31H37FN4O6.
Intended for in vitro antimalarial and pharmacology studies.

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1,585

Medchemexpress LLC Doxazosin | 74191-85-8 | MFCD00800482 | 99.9% | 451.48 | C23H25N5O5 | 10 MG

Doxazosin is a quinazoline-derived selective antagonist of postsynaptic α1-adrenergic receptors used in pharmacological research. Supplied as a white to off-white solid and available as a DMSO solution, it is provided for research use with defined purity and molecular identity.

Selective α1-adrenergic receptor antagonist for pharmacology studies.
Quinazoline derivative with defined chemical identity (CAS 74191-85-8).
Available as a solid and as a DMSO solution for assay flexibility.
High purity suitable for research applications.
Molecular formula C23H25N5O5 and molecular weight 451.48 g/mol.

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1,586

Sigma Aldrich Fine Chemicals Biosciences D-Camphor sulfonic acid United States Pharmacopeia (USP) Reference Standard | 3144-16-9 | MFCD00064157 | 100MG

D-Camphor sulfonic acid United States Pharmacopeia (USP) Reference Standard | Mol Wt: 232.3 | 3144-16-9 | MFCD00064157 | 100MG

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1,587

Sigma Aldrich Fine Chemicals Biosciences Milbemycin oxime European Pharmacopoeia (EP) Reference Standard | 129496-10-2 |

Milbemycin oxime European Pharmacopoeia (EP) Reference Standard | 129496-10-2 |

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1,588

Med Vet International Suction Unit Disposable Container Filter Cartridge Vacu-Aide, 7305D-635, 12/Pack

Replacement part for Vacu-Aide Suction Machine

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1,589

Medchemexpress LLC Naproxen etemesil | 385800-16-8 | 99.89% | 336.40 | 50 MG

Naproxen etemesil is a lipophilic, non-acidic, inactive proagent of naproxen that is hydrolyzed to pharmacologically active Naproxen once absorbed. Naproxen is a COX-1 and COX-2 inhibitor with IC50s of 8.72 and 5.15 μM, respectively, in cell assay. It is for research use only.

Lipophilic, non-acidic, inactive prodrug of naproxen
Hydrolyzed to pharmacologically active Naproxen upon absorption
Inhibits COX-1 and COX-2 with IC50s of 8.72 μM and 5.15 μM, respectively, in cell assay
Exerts anti-inflammatory and antifibrotic effects in a mouse model of bleomycin-induced lung fibrosis
Downregulates TGF-β levels and Smad3/4 complex formation
Inhibits inflammatory pain, fever, and PGE2 synthesis

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1,590

Medchemexpress LLC Keto-itraconazole | 112560-33-5 | MFCD08063772 | 98.4% | 719.62 g/mol | C35H36Cl2N8O5 | 1 MG

Keto-itraconazole is a metabolic derivative of itraconazole that acts as a potent inhibitor of cytochrome P450 3A (CYP3A). It is provided as an analytical-grade research reagent for in vitro enzyme inhibition and metabolism studies. Molecular formula: C35H36Cl2N8O5; molecular weight: ~719.6 g/mol; typical purity: 98.4%.

Potent CYP3A inhibitor with reported unbound IC50 ≈ 4.6 nM.
Intended for in vitro enzyme inhibition and metabolism research.
High reported purity suitable for analytical experiments.
Available in small quantities for screening and mechanistic studies.
Provided as a solid; consult the safety data sheet for handling and storage.

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Medchemexpress LLC Cabamiquine succinate | 2444781-71-7 | 99.8% | 580.65 g·mol-1 | C31H37FN4O6 | 1 ML Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Doxazosin | 74191-85-8 | MFCD00800482 | 99.9% | 451.48 | C23H25N5O5 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Naproxen etemesil | 385800-16-8 | 99.89% | 336.40 | 50 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Keto-itraconazole | 112560-33-5 | MFCD08063772 | 98.4% | 719.62 g/mol | C35H36Cl2N8O5 | 1 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Cabamiquine succinate | 2444781-71-7 | 99.8% | 580.65 g·mol-1 | C31H37FN4O6 | 1 ML

Medchemexpress LLC Doxazosin | 74191-85-8 | MFCD00800482 | 99.9% | 451.48 | C23H25N5O5 | 10 MG

Medchemexpress LLC Naproxen etemesil | 385800-16-8 | 99.89% | 336.40 | 50 MG

Medchemexpress LLC Keto-itraconazole | 112560-33-5 | MFCD08063772 | 98.4% | 719.62 g/mol | C35H36Cl2N8O5 | 1 MG