Pyrrolidines

3-(Pyrrolidin-1-ylmethyl)benzoic acid hydrochloride, 90%, Thermo Scientific™

CAS: 887922-93-2 Molecular Formula: C12H16ClNO2 Molecular Weight (g/mol): 241.715 InChI Key: BORITTZEFSYNFT-UHFFFAOYSA-N Synonym: 3-pyrrolidin-1-ylmethyl benzoic acid hydrochloride,3-1-pyrrolidylmethyl benzoic acid hydrochloride,3-pyrrolidinylmethyl benzoic acid, chloride,3-1-pyrrolidylmethyl benzoicacidhydrochloride,3-pyrrolidin-1-ylmethyl-benzoic acid hydochloride,3-pyrrolidin-1-ylmethyl-benzoic acid hydrochloride,3-pyrrolidin-1-yl methyl benzoic acid-hydrogen chloride 1/1 PubChem CID: 18525874 IUPAC Name: 3-(pyrrolidin-1-ylmethyl)benzoic acid;hydrochloride SMILES: C1CCN(C1)CC2=CC=CC(=C2)C(=O)O.Cl

Bromoacetic acid N-hydroxysuccinimide ester, 90%

CAS: 42014-51-7 Molecular Formula: C₆H₆BrNO₄ Molecular Weight (g/mol): 236.02 MDL Number: MFCD00058571 InChI Key: NKUZQMZWTZAPSN-UHFFFAOYSA-N Synonym: n-succinimidyl bromoacetate,bromoacetic acid n-hydroxysuccinimide ester,1-bromoacetyl oxy pyrrolidine-2,5-dione,2,5-dioxoazolidinyl 2-bromoacetate,bromoacetic acid n-succinimidyl ester,pubchem11830,n-succinimidylbromoacetate,n-bromoacetoxy succinimide,bicl212,n-hydroxysuccinimide bromoacetate PubChem CID: 3565210 IUPAC Name: (2,5-dioxopyrrolidin-1-yl) 2-bromoacetate SMILES: C1CC(=O)N(C1=O)OC(=O)CBr

Polyvinylpyrrolidone K-90, Spectrum™ Chemical

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CAS: 9003-39-8

N-(2-Hydroxyethyl)maleimide 98.0+%, TCI America™

CAS: 1585-90-6 Molecular Formula: C6H7NO3 Molecular Weight (g/mol): 141.126 MDL Number: MFCD00465266 InChI Key: AXTADRUCVAUCRS-UHFFFAOYSA-N Synonym: HEMI PubChem CID: 458487 IUPAC Name: 1-(2-hydroxyethyl)pyrrole-2,5-dione SMILES: C1=CC(=O)N(C1=O)CCO

N-Phenylmaleimide 98.0+%, TCI America™

CAS: 941-69-5 Molecular Formula: C10H7NO2 Molecular Weight (g/mol): 173.171 MDL Number: MFCD00005502 InChI Key: HIDBROSJWZYGSZ-UHFFFAOYSA-N Synonym: n-phenylmaleimide,maleanil,maleinanil,maleimidobenzene,1h-pyrrole-2,5-dione, 1-phenyl,1-phenyl-1h-pyrrole-2,5-dione,maleimide, n-phenyl,1-phenyl-2,5-dihydro-1h-pyrrole-2,5-dione,unii-9u9kt462vw,n-fenylimid kyseliny maleinove PubChem CID: 13662 IUPAC Name: 1-phenylpyrrole-2,5-dione SMILES: C1=CC=C(C=C1)N2C(=O)C=CC2=O

1-Methylpyrrolidine, 98%

CAS: 120-94-5 Molecular Formula: C5H11N Molecular Weight (g/mol): 85.15 MDL Number: MFCD00003173 InChI Key: AVFZOVWCLRSYKC-UHFFFAOYSA-N Synonym: n-methylpyrrolidine,methylpyrrolidine,n-methyltetrahydropyrrole,pyrrolidine, 1-methyl,n-methyl pyrrolidine,1-methyl-pyrrolidine,pyrrolidine, n-methyl,unii-06509tzu6c,methyl pyrrolidine PubChem CID: 8454 IUPAC Name: 1-methylpyrrolidine SMILES: CN1CCCC1

2-(2-Aminoethyl)-1-methylpyrrolidine 97.0+%, TCI America™

CAS: 51387-90-7 Molecular Formula: C7H16N2 Molecular Weight (g/mol): 128.22 MDL Number: MFCD00003175 InChI Key: PNHGJPJOMCXSKN-UHFFFAOYNA-N Synonym: 2-2-aminoethyl-1-methylpyrrolidine,2-1-methylpyrrolidin-2-yl ethanamine,2-pyrrolidineethanamine, 1-methyl,2-2'-aminoethyl-1-n-methylpyrrolidine,n-methyl-2-2-aminoethyl pyrrolidine,1-methyl-2-2-aminoethyl pyrrolidine,2-1-methylpyrrolidin-2-yl ethan-1-amine,2-1-methyl-2-pyrrolidinyl ethylamine,1-methyl-2-pyrrolidineethanamine,1-methylpyrrolidine-2-ethylamine PubChem CID: 98388 IUPAC Name: 2-(1-methylpyrrolidin-2-yl)ethan-1-amine SMILES: CN1CCCC1CCN

(3-Pyrrolidin-1-ylphenyl)methylamine, ≥90%, Thermo Scientific™

CAS: 175696-70-5 Molecular Formula: C11H16N2 Molecular Weight (g/mol): 176.26 MDL Number: MFCD07772827 InChI Key: BXTWTBYGOKOWQX-UHFFFAOYSA-N Synonym: 3-pyrrolidin-1-ylphenyl methylamine,3-pyrrolidin-1-yl phenyl methanamine,3-pyrrolidinobenzylamine,1-3-pyrrolidin-1-yl phenyl methanamine,3-pyrrolidin-1-ylphenyl methanamine,3-pyrrolizinobenzylamine,3-pyrrolidin-1-yl benzylamine,3-pyrrolidinylphenyl methylamine,3-pyrrolidin-1-yl phenyl methylamine PubChem CID: 7162061 IUPAC Name: (3-pyrrolidin-1-ylphenyl)methanamine SMILES: NCC1=CC(=CC=C1)N1CCCC1

Maleimide, 98+%

CAS: 541-59-3 Molecular Formula: C8H4AgKN2O4 Molecular Weight (g/mol): 339.10 MDL Number: MFCD00005494 InChI Key: KWLWLQRUFFGWNG-UHFFFAOYSA-L Synonym: maleimide,1h-pyrrole-2,5-dione,2,5-pyrroledione,maleinimide,maleic imide,3-pyrroline-2,5-dione,2,5-dihydro-1h-pyrrole-2,5-dione,unii-2519r1ugp8,ccris 3408,5-hydroxy-2h-pyrrol-2-one PubChem CID: 10935 ChEBI: CHEBI:16072 IUPAC Name: pyrrole-2,5-dione SMILES: [K+].[Ag+].O=C1[N-]C(=O)C=C1.O=C1[N-]C(=O)C=C1

1-(2-Chloroethyl)-2-pyrrolidone, 95%

CAS: 51333-90-5 Molecular Formula: C6H10ClNO Molecular Weight (g/mol): 147.60 MDL Number: MFCD00169064 InChI Key: CWLYHDWHNFLUEI-UHFFFAOYSA-N Synonym: 1-2-chloroethyl pyrrolidin-2-one,1-2-chloro-ethyl-pyrrolidin-2-one,1-2-chloroethyl-2-pyrrolidinone,2-pyrrolidinone, 1-2-chloroethyl,n-2-chloroethyl-2-pyrrolidone,1-2-chloroethyl-2-pyrrolidone,n-beta-chloroethyl-pyrrolidinone,1-2-chloroethyl-pyrrolidin-2-one,n-beta-chloroethyl-2-pyrrolidinone PubChem CID: 3156650 IUPAC Name: 1-(2-chloroethyl)pyrrolidin-2-one SMILES: ClCCN1CCCC1=O

4-(1-Pyrrolidinyl)-1-butylamine, 98%

CAS: 24715-90-0 Molecular Formula: C8H18N2 Molecular Weight (g/mol): 142.25 MDL Number: MFCD00192591 InChI Key: LSDYCEIPEBJKPT-UHFFFAOYSA-N Synonym: 4-pyrrolidin-1-yl butan-1-amine,4-1-pyrrolidinyl-1-butanamine,1-pyrrolidinebutanamine,4-1-pyrrolidino butylamine,4-pyrrolidinobutylamine,4-1-pyrrolidinyl-1-butylamine,1-4-aminobutyl pyrrolidine,4-pyrrolidin-1-yl-butylamine,4-pyrrolidinylbutylamine,1-pyrrolidinebutylamine PubChem CID: 2762762 IUPAC Name: 4-pyrrolidin-1-ylbutan-1-amine SMILES: NCCCCN1CCCC1

N-Phenylmaleimide, 97%

CAS: 941-69-5 Molecular Formula: C₁₀H₇NO₂ Molecular Weight (g/mol): 173.17 MDL Number: MFCD00005502 InChI Key: HIDBROSJWZYGSZ-UHFFFAOYSA-N Synonym: n-phenylmaleimide,maleanil,maleinanil,maleimidobenzene,1h-pyrrole-2,5-dione, 1-phenyl,1-phenyl-1h-pyrrole-2,5-dione,maleimide, n-phenyl,1-phenyl-2,5-dihydro-1h-pyrrole-2,5-dione,unii-9u9kt462vw,n-fenylimid kyseliny maleinove PubChem CID: 13662 IUPAC Name: 1-phenylpyrrole-2,5-dione SMILES: C1=CC=C(C=C1)N2C(=O)C=CC2=O

(S)-(+)-1-Methyl-3-pyrrolidinol, 98%, ee 99%

CAS: 104641-59-0 Molecular Formula: C5H11NO Molecular Weight (g/mol): 101.15 MDL Number: MFCD03788748 InChI Key: FLVFPAIGVBQGET-UHFFFAOYNA-N Synonym: s-+-1-methyl-3-pyrrolidinol,3s-1-methylpyrrolidin-3-ol,s-1-methyl-3-pyrrolidinol,s-1-methylpyrrolidin-3-ol,3-pyrrolidinol, 1-methyl-, 3s,s-+-3-hydroxy-n-methylpyrrolidine,s-+-1-methyl-3-hydroxypyrrolidine,s-3-hydroxy-1-methylpyrrolidine,1-methyl-3-pyrrolidinol, +,s-3-hydroxy-1-methyl-pyrrolidine PubChem CID: 643504 SMILES: CN1CCC(O)C1

Medchemexpress LLC Maleimide-DOTA | 1006711-90-5 | 99.6% | 526.54 | C22H34N6O9 | 25 MG

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Maleimide-DOTA is a non-cleavable antibody-drug conjugate (ADC) linker that couples payloads to antibodies via maleimide chemistry for thiol-selective conjugation. Supplied for research use, it contains a DOTA chelator enabling radiolabeling and bioconjugation applications.

• Non-cleavable maleimide-based linker.
• DOTA chelator suitable for radiolabeling and metal coordination.
• High purity (approximately 99.6%).
• Soluble in DMSO and water; sonication recommended for dissolution.
• Examples of in vivo vehicle protocols provided by manufacturer for formulation.
• Store product at -20°C; in solvent, store at -80°C for long-term stability.

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Medchemexpress LLC N-(2-hydroxyethyl)maleimide | 1585-90-6 | MFCD00465266 | 99.2% | 141.12 g/mol | C6H7NO3 | 5 G

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N-(2-hydroxyethyl)maleimide is a maleimide-based cross-linker bearing a 2-hydroxyethyl substituent. It provides a thiol-reactive maleimide and a hydroxyl handle for downstream modification, commonly used in chemical synthesis and bioconjugation research.

• Reactive maleimide moiety for thiol-selective conjugation.
• Hydroxyl functional group enables further derivatization.
• Low molecular weight (141.12 g/mol) for minimal steric hindrance.
• High purity suitable for research applications (≈99.2%).
• Available in small lab-scale pack sizes for synthetic workflows.

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