Pyrrolidines

Organic heterocyclic compounds that consist of a five-membered ring with four carbon atoms and one nitrogen atom that form a cyclic secondary amine.

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4,951 – 4,965 of 6,328 results

4,951

Medchemexpress LLC cis-aconitic acid | 585-84-2 | MFCD00063184 | >98.0% | 174.11 g/mol | C6H6O6 | 50 MG

(Z)-Aconitic acid (cis-aconitic acid) is the cis-isomer of aconitic acid, an unsaturated tricarboxylic acid (C6H6O6, MW 174.11 g/mol). It is used as an analytical standard and research reagent in metabolic and enzymatic studies, and as a reference for assay development and validation.

Acts as a glutamate decarboxylase inhibitor.
Used as an analytical standard for assay calibration and method validation.
High purity suitable for research and analytical applications.
Defined chemical identity: C6H6O6, 174.11 g/mol.
Applicable in metabolic and enzymatic studies.

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4,952

Apexbio Technology LLC KAINIC ACID 10MG

KAINIC ACID 10MG APEXBIO TECHNOLOGIES

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4,953

Medchemexpress LLC 2-chloro-4-nitrophenyl β-D-glucopyranoside | 120221-14-9 | MFCD00037475 | 98.0% | 335.69 g/mol | C12H14ClNO8 | 100 MG

2-Chloro-4-nitrophenyl β-D-glucopyranoside is a chromogenic substrate for detecting β-glucosidase activity. Upon enzymatic hydrolysis it releases 2-chloro-4-nitrophenol, producing a colored product that can be monitored spectrophotometrically. The compound is identified by CAS 120221-14-9, has molecular formula C12H14ClNO8, and is reported at 98% purity.

Chromogenic substrate for β-glucosidase assays.
Releases a colored product upon hydrolysis for easy detection.
Suitable for spectrophotometric monitoring of enzyme activity.
Can be used as a supplement in bacterial growth media for detection assays.
High reported purity supports consistent assay performance.
Available in multiple pack sizes for laboratory use.

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4,954

Vector Laboratories AZDYE 488 MALEIMIDE

NC3597436 AZDYE 488 MALEIMIDE

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4,955

Medchemexpress LLC 2-chloro-4-nitrophenyl beta-D-glucopyranoside | 120221-14-9 | MFCD00037475 | 99.7% | 335.69 g·mol⁻¹ | C12H14ClNO8 | 1 G

2-Chloro-4-nitrophenyl beta-D-glucopyranoside is a chromogenic substrate used to assay β-glucosidase activity. Enzymatic hydrolysis liberates a 2-chloro-4-nitrophenyl chromophore that can be detected colorimetrically, making the compound useful for biochemical assays and as an additive in bacterial growth media. The reagent is supplied as a solid with specified purity and storage recommendations.

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4,956

Medchemexpress LLC (+)-1,2-bis((2S,5S)-2,5-diphenylphospholano)ethane | 824395-67-7 | MFCD07369028 | 98.0% | 506.60 | C34H36P2 | 25 MG

(+)-1,2-bis((2S,5S)-2,5-diphenylphospholano)ethane is a chiral bisphospholane diphosphine ligand used in asymmetric catalysis and coordination chemistry. It appears as a white to off-white solid and is supplied with high chemical purity for research applications requiring stereoselective metal coordination.

Provides strong, stereoselective coordination to transition metals.
Used in asymmetric hydrogenation and other enantioselective transformations.
High chemical purity (98.0%) supports reproducible catalytic performance.
Molecular weight 506.60 and formula C34H36P2 for stoichiometric calculations.
Stable as a solid when stored under inert atmosphere at 4°C; in solution store at -80°C for long-term.

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4,957

Medchemexpress LLC Enalaprilat dihydrate | 84680-54-6 | 99.6% | 500 MG

Enalaprilat dihydrate, the active metabolite of Enalapril, is a potent, competitive, and long-acting angiotensin-converting enzyme (ACE) inhibitor with an IC50 of 1.94 nM. It is used for hypertension research.

Potent, competitive, and long-acting ACE inhibitor
Attenuates IGF-I induced neonatal rat cardiac fibroblast growth
Demonstrates a significant intraocular pressure (IOP)-lowering effect

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4,958

Sigma Aldrich Fine Chemicals Biosciences Carbonic Anhydrase bo500MG

Carbonic Anhydrase bo500MG

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4,959

Medchemexpress LLC Cy3 maleimide chloride | 1838643-41-6 | MFCD28385512 | 99.3% | 615.20 | C36H43ClN4O3 | 10 MG

Cy3 maleimide chloride is a Cyanine3-derived fluorescent labeling reagent containing a maleimide group that selectively reacts with thiol (cysteine) residues to form stable thioether conjugates. Supplied as a chloride salt, it is intended for fluorescent labeling of proteins, peptides, and other thiolated biomolecules for detection and imaging.

Maleimide functional group enables thiol-specific conjugation.
High purity suitable for bioconjugation and imaging applications.
Bright fluorescence in the green-orange wavelength range for sensitive detection.
Available in multiple sizes for small- to large-scale labeling.
Formula C36H43ClN4O3 and molecular weight 615.20.

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4,960

Medchemexpress LLC Atosiban acetate | 914453-95-5 | MFCD08692014 | 99.8% | 1054.24 g/mol | C45H71N11O14S2 | 10 MG

Atosiban acetate is a nonapeptide oxytocin/vasopressin receptor antagonist supplied as a powder for research use in studies of uterine contraction and tocolysis. The product is characterized in the supplier SDS and product documentation with CAS, formula, molecular weight, purity, and recommended storage conditions.

Nonapeptide oxytocin/vasopressin receptor antagonist.
Supplied as a powder suitable for experimental use.
High purity (99.8%) for research-grade applications.
Documentation includes SDS and COA for traceability.
Store frozen per SDS recommendations to preserve stability.

Pricing & Availability

4,961

Medchemexpress LLC 2-chloro-4-nitrophenyl β-D-glucopyranoside | 120221-14-9 | MFCD00037475 | 98.0% | 335.69 g/mol | C12H14ClNO8 | 250 MG

2-Chloro-4-nitrophenyl β-D-glucopyranoside is a chromogenic substrate used to detect β-glucosidase activity in biochemical assays. Upon enzymatic hydrolysis it releases a colored 2-chloro-4-nitrophenol, enabling spectrophotometric measurement of enzyme activity. The material is supplied at high purity for research and assay development applications.

Chromogenic substrate for β-glucosidase assays.
Enzymatic cleavage releases 2-chloro-4-nitrophenol for spectrophotometric detection.
High purity suitable for analytical and assay applications.
Facilitates quantitative measurement of enzyme activity.
Applicable to bacterial growth medium formulations.

Pricing & Availability

4,962

Medchemexpress LLC Tert-butyl 2-(2-(2-(2-hydroxyethoxy)ethoxy)ethoxy)ethyl carbamate | 106984-09-2 | MFCD07779195 | 99.5% | 293.36 g/mol | C13H27NO6 | 500 MG

Boc-NH-PEG4 is a Boc-protected PEG4 linker used as a hydrophilic spacer in proteolysis-targeting chimera (PROTAC) synthesis and other bioconjugation chemistries. It combines a protected amine and a terminal hydroxyl to allow stepwise functionalization, improve aqueous solubility, and provide conformational flexibility during linker assembly.

Provides a Boc-protected amine for orthogonal deprotection and coupling.
Terminating hydroxyl enables diverse functionalization reactions.
PEG4 spacer increases solubility and molecular flexibility.
High purity supports reliable synthetic workflows (listed ~99.5%).
Molecular weight ~293.36 g/mol; formula C13H27NO6.
Supplied in laboratory-scale quantities for research use.

Pricing & Availability

4,963

Medchemexpress LLC Bis(diphenylphospholano)ethane | 824395-67-7 | MFCD07369028 | 98.0% | 506.60 | C34H36P2 | 100 MG

Chiral diphenylphospholane-derived phosphine ligand used as an enantioselective catalyst in asymmetric transformations, notably asymmetric hydrogenation. The compound is supplied as a high-purity research reagent and requires inert storage to maintain stability.

Chiral diphenylphospholane-derived phosphine ligand.
Enables enantioselective catalysis such as asymmetric hydrogenation.
High chemical purity (98.0%).
Molecular formula C34H36P2, molecular weight 506.60.
Store under nitrogen at 4°C; in solvent: -80°C (6 months) or -20°C (1 month).
Available in small research pack sizes for laboratory use.

Pricing & Availability

4,964

Chem-Impex International, Inc. (R)-(-)-Boc-3-pyrrolidinol | 109431-87-0 | MFCD01317838 | 25G

(R)-(-)-Boc-3-pyrrolidinol, 109431-87-0, MFCD01317838, 25G

Pricing & Availability

4,965

Chem-Impex International, Inc. N-Vinyl-2-pyrrolidone | MFCD00003197 | 250G

N-Vinyl-2-pyrrolidone, MFCD00003197, 250G

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Pyrrolidines

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Medchemexpress LLC cis-aconitic acid | 585-84-2 | MFCD00063184 | >98.0% | 174.11 g/mol | C6H6O6 | 50 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Apexbio Technology LLC KAINIC ACID 10MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC 2-chloro-4-nitrophenyl β-D-glucopyranoside | 120221-14-9 | MFCD00037475 | 98.0% | 335.69 g/mol | C12H14ClNO8 | 100 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC 2-chloro-4-nitrophenyl beta-D-glucopyranoside | 120221-14-9 | MFCD00037475 | 99.7% | 335.69 g·mol⁻¹ | C12H14ClNO8 | 1 G Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC (+)-1,2-bis((2S,5S)-2,5-diphenylphospholano)ethane | 824395-67-7 | MFCD07369028 | 98.0% | 506.60 | C34H36P2 | 25 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Enalaprilat dihydrate | 84680-54-6 | 99.6% | 500 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Cy3 maleimide chloride | 1838643-41-6 | MFCD28385512 | 99.3% | 615.20 | C36H43ClN4O3 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Atosiban acetate | 914453-95-5 | MFCD08692014 | 99.8% | 1054.24 g/mol | C45H71N11O14S2 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC 2-chloro-4-nitrophenyl β-D-glucopyranoside | 120221-14-9 | MFCD00037475 | 98.0% | 335.69 g/mol | C12H14ClNO8 | 250 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Tert-butyl 2-(2-(2-(2-hydroxyethoxy)ethoxy)ethoxy)ethyl carbamate | 106984-09-2 | MFCD07779195 | 99.5% | 293.36 g/mol | C13H27NO6 | 500 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Bis(diphenylphospholano)ethane | 824395-67-7 | MFCD07369028 | 98.0% | 506.60 | C34H36P2 | 100 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More